KR20090120363A - Method for producing functional nonwoven fabric containing sodium alginate - Google Patents

Abstract

The present invention relates to a method for producing a functional nonwoven fabric containing sodium alginate, and more particularly, to a polymer blend solution by dissolving a hybrid array polyvinyl alcohol and sodium alginate in a solvent capable of simultaneously dissolving hybrid array polyvinyl alcohol and sodium alginate. It relates to a method for producing a functional nonwoven fabric containing sodium alginate comprising the step of producing a spinning solution and an electrospinning step of electrospinning the spinning solution.

Description

Preparation method of functional nonwoven fabrics containing sodium alginate

The present invention relates to a method for producing a functional nonwoven fabric having a significantly improved biocompatibility than a polyvinyl alcohol nonwoven fabric prepared by conventional electrospinning by introducing sodium alginate which is natural polymer and has excellent biocompatibility into the blend solution for electrospinning.

Electrospinning technology makes it possible to produce ultra-fine fibers of tens to hundreds of nanometers in diameter using a variety of materials, including polymers, ceramics and composites. Recently, as the nano technology era enters, as a method of manufacturing nanofibers by combining new materials and new technologies, many studies have been made in various countries.

Nanofibers of many functional polymers have been developed by applying electrospinning. Numerous biodegradable polymers have been electrospun into nanofibers for use in cell biology and tissue engineering.

Furthermore, even natural biopolymers and viruses such as DNA, silk fibroin, human or bovine fibrinogen, dextran, and collagen can be successfully electrospun.

However, many functional polymers are not suitable for electrospinning because their use is limited due to problems such as molecular weight or solubility.

Therefore, there is an urgent need to develop a nonwoven fabric having improved functionality by selecting a blend polymer solution suitable for electrospinning.

An object of the present invention is to prepare a functional nonwoven fabric using sodium alginate, relatively low electrospun, and sodium alginate, which has the disadvantage of poor structure formation due to the structural properties of the polymer has excellent fiber formation and excellent physical and chemical properties. And a blend of polyvinyl alcohol with durability and flexibility to complement the shortcomings of sodium alginate while highlighting the superior biocompatibility.

In order to achieve the above object, the present invention

A spinning solution preparation step of preparing a polymer blend solution by dissolving the hybrid array polyvinyl alcohol and sodium alginate in a solvent capable of simultaneously dissolving the hybrid array polyvinyl alcohol and sodium alginate; And it provides a method for producing a functional nonwoven fabric containing sodium alginate comprising the electrospinning step of electrospinning the spinning solution.

The present invention also provides a functional nonwoven fabric containing sodium alginate, comprising 1-30 parts by weight of sodium alginate with respect to 100 parts by weight of the hybrid array polyvinyl alcohol, and is prepared by electrospinning.

Hereinafter, the present invention will be described in more detail.

The manufacturing method according to the present invention may further include a stabilizing step of stabilizing the spinning solution between the spinning solution preparation step and the electrospinning step.

This stabilization step removes air bubbles by leaving the polymer blend solution at a temperature of 20 to 35 ° C. for 0.5 to 2 hours.

The hybrid array polyvinyl alcohol is added with azobisdimethylvaleronitrile in an amount of 0.00001 to 0.05 moles per mole of the monomer mixture as an initiator with respect to 1 mole of vinyl acetate, and homopolymerization, bulk copolymerization and solution copolymerization at a temperature of 20 to 80 ° C. , By the polymerization method of any one of emulsion co-polymerization and suspension co-polymerization to synthesize a precursor having a stereoregularity, and saponified these precursors by the number average degree of polymerization of 500 to 4000, saponification degree of 90.0 to 99.9 and alternating arrangement diamond A hybrid array polyvinyl alcohol having 47 to 54% of groups is prepared.

More preferably, the number average degree of polymerization is 1700, the degree of saponification is 99.9%, and the content of alternating diad groups is 52%. If the hybrid array polyvinyl alcohol outside the range of the molecular variable is used, problems of stereoregularity and molecular weight degradation may occur.

The hybrid array polyvinyl alcohol (1) adds azobisdimethylvaleronitrile as an initiator to the monomer mixture in an amount of 0.00001 to 0.05 moles per mole of the monomer, and homopolymerization, bulk copolymerization and solution copolymerization at a temperature of 20 to 80 ° C. Synthesis step of synthesizing the precursor having a variety of stereoregularity by polymerization by any one of the polymerization method, emulsion copolymerization and suspension copolymerization; (2) To 1 g of the synthesized precursor was dissolved using 0.1 to 10 mol of an organic solvent such as methanol, tetrahydrofuran, acetone or dioxane, and then 0.005 to 0.07 mol of sodium hydroxide or potassium hydroxide and 0.01 to 0.8 mol of water. Saponification step of saponifying at a temperature of 20 to 60 ℃ using a configured saponification agent; prepared through, the saponification degree of the obtained polyvinyl alcohol is 90.0 to 99.9%, the number average degree of polymerization is 500 to 4000, alternating arrangement It has various stereoregularities of hybrid arrays with 47-54% of groups.

In the synthesis step of (1), when the reaction temperature is less than 20 ℃, the initiation reaction is not made due to the nature of the initiator, if it exceeds 80 ℃, there may be a problem of the degree of polymerization decrease due to the branching reaction by a high reaction rate have.

In addition, the sodium alginate preferably has a viscosity range of 200,000 to 400,000 cps. If the viscosity of the sodium alginate is out of the above range, it may cause a difficult problem of controlling the spinning solution viscosity.

In addition, the sodium alginate is preferably included 1 to 30 parts by weight based on 100 parts by weight of the hybrid array polyvinyl alcohol. If sodium alginate out of the above range is used, there may be a problem that miscibility with sodium alginate and durability of the resulting nano-nonwoven fabric may be weak.

In addition, water, dimethyl sulfoxide, water / dimethyl sulfoxide mixed solvent, and the like may be used as a solvent capable of simultaneously dissolving the hybrid array polyvinyl alcohol and sodium alginate, and more preferably water.

In this case, the solvent to be used is sufficient in capacity to dissolve the hybrid array polyvinyl alcohol and sodium alginate at the same time.

In the functional nonwoven fabric according to the present invention, beads having a maximum diameter of 20 μm or less are randomly distributed in the form of spots on a PVA nonwoven fabric having a thickness of 500 nm or less.

According to the present invention, the spinning solution is spun onto a collector by electrospinning with a conventional electrospinning apparatus to be collected in a nonwoven fabric having a three-dimensional network structure.

Specifically, as shown in FIG. 1, a conventional electrospinning device includes a syringe 2 for injecting a spinning solution, a nozzle 3 for discharging a spinning solution, and a collector 1 for collecting fibers spun at the lower end of the nozzle. ), A voltage generator 4 for generating and supplying a high voltage, and a device 5 for transferring the generated voltage to the spinning solution.

A continuous voltage is supplied to the polymer solution contained in the syringe, and the spinning solution is spun and stacked onto the collector 1 subjected to the high voltage through the nozzle 3 attached to the syringe tip to form a nonwoven fabric.

The present invention can easily control the shape of the nonwoven fabric produced by adjusting the polymer blend composition ratio. The nonwoven fabric has a fiber diameter of 500 nm or less and is composed of ultra-fine fibers, and fine water-soluble polymer beads (Bead) are randomly formed on the surface.

More specifically, increasing the composition ratio of sodium alginate increases the beads of the nonwoven fabric and increases the frequency. It is desirable to maximize the biocompatibility of the nonwoven fabric produced by increasing the composition ratio of sodium alginate as much as possible.

Sodium alginate used in the present invention is one of natural polymers including polysaccharides existing on the earth, and its biomass is very high, environmentally friendly, and biocompatibility is also very excellent. It is used in medicine, pharmaceuticals, biotechnology, functional health foods and foodstuffs through a relatively simple modification or process, and has excellent industrial applicability.

Sodium alginate has recently been applied in studies such as structural materials for drug delivery systems, scaffolds for special cell proliferation, and wound dressing for wound healing. It has been reported that the use of sodium alginate as a wound dressing has accelerated the healing effects of pathologically chronic wounds.

Therefore, the manufacturing method of the functional nonwoven fabric according to the present invention is biocompatible than polyvinyl alcohol nonwoven fabric prepared using conventional electrospinning by introducing sodium alginate which is natural polymer and has excellent biocompatibility into the preparation of the blend solution for electrospinning. It can be greatly improved.

Functional nonwoven fabric prepared according to the present invention is a natural polymer, sodium alginate, which is excellent in environmental friendliness and biocompatibility, is a biocompatible synthetic polymer that has excellent film and fiber formation properties and also has excellent physical and chemical resistance. The nonwoven fabric can be prepared by blending with polyvinyl chloride, and the functional nonwoven fabric containing sodium alginate has the advantage of simple manufacturing process and easy control. In particular, the nonwoven fabric containing sodium alginate prepared by the production method of the present invention is useful for wound dressing.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the following examples are only for the purpose of clarifying the contents of the present invention, and the present invention is not limited by the examples.

Production Example 1 Hybrid Array PVA Production

Hereinafter, the hybrid array PVA used in the examples was prepared by the following method.

200 ml (3.3 mol) distilled water and a suspension stabilizer 0.9 g polyvinyl alcohol 0.9 g (7.09 × 10 ^-6 mol, saponification degree: 88%) in a 200 ml four-necked flask equipped with a thermometer, nitrogen inlet, cooling tower and anchor stirrer , Number average molecular weight: 127,000) was dissolved at 50 ℃ stirring and cooled to room temperature and passed through a pyrogarol-alkali aqueous solution trap and dryer light trap to remove oxygen by passing through the nitrogen to remove oxygen for 2 hours. 30 ml (0.325 mol) of vinyl acetate and 0.0162 g (2 × 10 ^-4 mol) of azobisdimethylvaleronitrile (ADMVN) as an initiator were added thereto, oxygen was removed for 1 hour, and the temperature was raised to 50 ° C. (polymerization temperature). The polymerization was carried out for 24 hours at 300 rpm under a nitrogen stream.

Thereafter, the mixture was cooled in distilled water, precipitated the polymer from the suspension, filtered through a glass filter, and the filtrate was washed several times with distilled water and filtered again to remove residual monomer and suspension stabilizer and then vacuum at 40 ° C. for 1 day. It dried and obtained polyvinyl acetate of white particle form.

The polyvinyl acetate prepared above was dissolved using 5 mol of tetrahydrofuran per 1 g, and then saponified at a temperature of 40 ° C. using a saponifying agent composed of 0.01 mol of sodium hydroxide and 0.5 mol of water.

<Example 1>

30 ml of water was mixed and sealed in a 50 ml vial of 2.4 g of a hybrid array PVA, which is a solid powder having a number average degree of polymerization of 1700, a degree of saponification of 99.9%, and a content of alternating diad groups of 52%. It was dissolved while stirring.

After confirming that the melting completely, the spinning solution was left at room temperature for about 2 hours to remove bubbles to stabilize the spinning solution. After the bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at a normal temperature of 15 kV to obtain a PVA nonwoven fabric.

<Example 2>

To 2.4 g of the hybrid array PVA under the same conditions as in Example 1, 30 ml of water was mixed and sealed, and then dissolved with stirring in a hot bath at 95 ° C.

After confirming that the melting completely, the spinning solution was left at room temperature for about 2 hours to remove bubbles to stabilize the spinning solution. After the bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 20 cm, and an electrospinning was performed at 15 kV at room temperature to obtain a PVA nonwoven fabric.

<Example 3>

To 2.4 g of the hybrid array PVA under the same conditions as in Example 1, 30 ml of water was mixed and sealed, and then dissolved with stirring in a hot bath at 95 ° C.

After confirming that the melting completely, the spinning solution was left at room temperature for about 2 hours to remove bubbles to stabilize the spinning solution. The bubble-free solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at 15 kV at room temperature to obtain a PVA nonwoven fabric.

<Example 4>

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

Example 5

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1 wt% based on the weight of PVA, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 6>

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1 wt% based on the weight of PVA, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 7>

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5 wt% based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 8>

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5 wt% based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

Example 9

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5 wt% based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 10>

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at a weight of 10 to the weight of PVA, 30 ml of water was mixed and sealed, and then dissolved at 95 ° C. with stirring in a hot bath.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 11>

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 10% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble-free solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 12>

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 10% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

Example 13

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 14>

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 15>

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 16>

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 17>

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

Example 18

For 2.4 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath.

After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution. The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

Example 19

To 2.7 g of the hybrid array PVA under the same conditions as in Example 1, 30 ml of water was mixed and sealed, and then dissolved with stirring in a hot bath at 95 ° C. After confirming that the melting completely, the spinning solution was left at room temperature for about 2 hours to remove bubbles to stabilize the spinning solution.

After the bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at a normal temperature of 15 kV to obtain a PVA nonwoven fabric.

Example 20

To 2.7 g of the hybrid array PVA under the same conditions as in Example 1, 30 ml of water was mixed and sealed, and then dissolved with stirring in a hot bath at 95 ° C. After confirming that the melting completely, the spinning solution was left at room temperature for about 2 hours to remove bubbles to stabilize the spinning solution.

After the bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a PVA nonwoven fabric.

Example 21

To 2.7 g of the hybrid array PVA under the same conditions as in Example 1, 30 ml of water was mixed and sealed, and then dissolved with stirring in a hot bath at 95 ° C. After confirming that the melting completely, the spinning solution was left at room temperature for about 2 hours to remove bubbles to stabilize the spinning solution.

After the bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at a normal temperature of 15 kV to obtain a PVA nonwoven fabric.

<Example 22>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1 wt% based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 23>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1 wt% based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 24>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1 wt% based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 25>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

Example 26

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

Example 27

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 28>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 10% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After confirming that the melt completely, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 29>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 10% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 30>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 10% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 31>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 32>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 33>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 34>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 35>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 36>

For 2.7 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 37>

30 ml of water was mixed and sealed with 3.0 g of the hybrid array PVA under the same conditions as in Example 1, and then dissolved with stirring in a hot bath at 95 ° C. After confirming that the melting completely, the spinning solution was left at room temperature for about 2 hours to remove bubbles to stabilize the spinning solution.

After the bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at a normal temperature of 15 kV to obtain a PVA nonwoven fabric.

<Example 38>

30 ml of water was mixed and sealed with 3.0 g of the hybrid array PVA under the same conditions as in Example 1, and then dissolved with stirring in a hot bath at 95 ° C. After confirming that the melted completely, the spinning solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

After the bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a PVA nonwoven fabric.

<Example 39>

30 ml of water was mixed and sealed with 3.0 g of the hybrid array PVA under the same conditions as in Example 1, and then dissolved with stirring in a hot bath at 95 ° C. After confirming that the melting completely, the spinning solution was left at room temperature for about 2 hours to remove bubbles to stabilize the spinning solution.

After the bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at a normal temperature of 15 kV to obtain a PVA nonwoven fabric.

<Example 40>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 41>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 42>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 43>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 44>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 45>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 46>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 10% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 47>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 10% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 48>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 10% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 49>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 50>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 51>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 52>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 53>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 54>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 55>

To 3.3 g of the hybrid array PVA under the same conditions as in Example 1, 30 ml of water was mixed and sealed, and then dissolved with stirring in a hot bath at 95 ° C. After completely dissolved, the solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

After the bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at a normal temperature of 15 kV to obtain a PVA nonwoven fabric.

<Example 56>

To 3.3 g of the hybrid array PVA under the same conditions as in Example 1, 30 ml of water was mixed and sealed, and then dissolved with stirring in a hot bath at 95 ° C. After confirming that the melting completely, the spinning solution was left at room temperature for about 2 hours to remove bubbles to stabilize the spinning solution.

After the bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a PVA nonwoven fabric.

<Example 57>

To 3.3 g of the hybrid array PVA under the same conditions as in Example 1, 30 ml of water was mixed and sealed, and then dissolved with stirring in a hot bath at 95 ° C. After confirming that the melting completely, the spinning solution was left at room temperature for about 2 hours to remove bubbles to stabilize the spinning solution.

After the bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a PVA nonwoven fabric.

<Example 58>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 59>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 60>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 1 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 61>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 62>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 63>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 5 wt% based on the PVA weight, 30 ml of water was mixed, sealed, and dissolved at 95 ° C. with stirring in a hot bath. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble-free solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at 15 kV at room temperature to obtain an SA and PVA blended nonwoven fabric.

<Example 64>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 10% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 65>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 10% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

Example 66

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 10% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 67>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 68>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 69>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 20% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 70>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 10 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 71>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, and the distance between the collector and the nozzle was adjusted to 20 cm, and electrospinning was performed at a normal temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

<Example 72>

For 3.0 g of the hybrid array PVA under the same conditions as in Example 1, SA was blended at 30% by weight based on the PVA weight, 30 ml of water was mixed and sealed, and then dissolved by stirring in a hot bath at 95 ° C. After it was completely dissolved, the blend solution was left at room temperature for 2 hours to remove bubbles and stabilize the spinning solution.

The bubble was removed, the spinning solution was placed in a syringe, the distance between the collector and the nozzle was adjusted to 30 cm, and an electrospinning was performed at an ambient temperature of 15 kV to obtain a SA and PVA blended nonwoven fabric.

1 relates to a schematic diagram of an electrospinning apparatus used in the practice of the present invention,

2 is an electron micrograph of a PVA nonwoven fabric prepared according to Example 7,

3 is an electron micrograph of a SA and PVA blended nonwoven fabric prepared according to Example 8,

4 is an electron micrograph of a SA and PVA blended nonwoven fabric prepared according to Example 9,

5 is an electron micrograph of a SA and PVA blended nonwoven fabric prepared according to Example 10,

6 is an electron micrograph of a SA and PVA blended nonwoven fabric prepared according to Example 11,

7 is an electron micrograph of a SA and PVA blended nonwoven fabric prepared according to Example 12. FIG.

Claims (6)

A spinning solution preparation step of preparing a polymer blend solution by dissolving the hybrid array polyvinyl alcohol and sodium alginate in a solvent capable of simultaneously dissolving the hybrid array polyvinyl alcohol and sodium alginate; And An electrospinning step of electrospinning the spinning solution Method for producing a functional nonwoven fabric containing sodium alginate comprising a. The method of manufacturing a functional nonwoven fabric containing sodium alginate according to claim 1, further comprising a stabilizing step of stabilizing the spinning solution between the spinning solution preparation step and the electrospinning step. The method of claim 1 or 2, wherein the hybrid array polyvinyl alcohol has a number average polymerization degree of 500 to 4000 of solid components, a saponification degree of 90.0 to 99.9%, and an alternating diad group content of 47 to 54%. The manufacturing method of the functional nonwoven fabric containing sodium alginate. The method for producing a functional nonwoven fabric containing sodium alginate according to claim 1 or 2, wherein the sodium alginate has a viscosity range of 200,000 to 400,000 cps. The method for producing a functional nonwoven fabric containing sodium alginate according to claim 1 or 2, wherein the sodium alginate is contained in an amount of 1 to 30 parts by weight based on 100 parts by weight of the hybrid array polyvinyl alcohol. A functional nonwoven fabric containing sodium alginate, comprising 1-30 parts by weight of sodium alginate based on 100 parts by weight of the hybrid array polyvinyl alcohol, and is prepared by electrospinning.

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