CN1322045C - Bactericidal enzyme agglomerate, bactericidal enzyme polymer monofilament and its preparing process and uses - Google Patents
Bactericidal enzyme agglomerate, bactericidal enzyme polymer monofilament and its preparing process and uses Download PDFInfo
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- CN1322045C CN1322045C CNB2005100281631A CN200510028163A CN1322045C CN 1322045 C CN1322045 C CN 1322045C CN B2005100281631 A CNB2005100281631 A CN B2005100281631A CN 200510028163 A CN200510028163 A CN 200510028163A CN 1322045 C CN1322045 C CN 1322045C
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Abstract
The present invention relates to a bactericidal enzyme agglomerate, a bactericidal enzyme polymer monofilament comprising the agglomerate and a preparation method and the purpose thereof. The bactericidal enzyme agglomerate comprises lysozyme powder of which the activity is not less than 20, 000 u/g, beta-1, 3 glucanase powder of which the activity is not less than 200, 000 u/g, a negative bacteria resisting synergistic agent and the rest of polymers, wherein the content of the lysozyme powder is 2 to 10% weight of that of the agglomerate, the proportioning of the dosage of the beta-1, 3 glucanase powder to that of the lysozyme powder is equal to 0.5-1 to 1, the negative bacteria resisting synergistic agent is selected from one or a plurality of the following substances: baking soda, glycine, glutamic acid, the proportioning of the dosage of the negative bacteria resisting synergistic agent to that of the lysozyme powder is equal to 0.5-1 to 1, and the polymers are selected from at least one of polypropylene, polyethylene, polystyrene, polyester and polyamide. The bactericidal enzyme polymer monofilament comprises 1 to 15% weight of bactericidal enzyme agglomerate, can be used for filter screens in air filters and can enhance the antibacterial, fungus-proof and air cleaning capability of the filter screens.
Description
Technical field
This patent relates to a kind of Enzyme Sterilization Master Batch, a kind of enzyme and sterilizing polymer filament and its production and use.
Background technology
Along with the raising of social life level, people require more and more higher to the Air quality of the conditioner of a large amount of uses, air purifier output, the requirement of airstrainer has also been increased.It not only wants can to filter out outside the koniology, and also will possess can germ-resistant function, that is to say: be used to weave monofilament that airstrainer the uses energy that also will have microbe killing properties.But, at present,, still there is not sophisticated product with sterilizing function in field of air filtration, they still are in development and development phase.
In brief, still do not have the effective and practical polymer filament that can be used in air filter at present, do not have the airstrainer of sterilizing function yet with sterilizing function.
Summary of the invention
In view of the above problems, the present inventor has developed a kind of Enzyme Sterilization Master Batch with sterilizing function, and has made a kind of enzyme and sterilizing polymer filament with sterilizing function thus, and it is woven into airstrainer, is used for air filter.
A first aspect of the present invention provides a kind of Enzyme Sterilization Master Batch, and it comprises:
Activity is not less than 20, the lysozyme powder of 000U/g, and content is 2～10 weight % of master batch weight;
Activity is not less than 200, the β of 000U/g-1,3 dextranase powder, and the weight proportion of its consumption and lysozyme powder is 0.5～1: 1;
The synergistic agent of anti-negative bacterium, be selected from the following material one or more: sodium bicarbonate, glycine, L-glutamic acid, the weight proportion of its consumption and lysozyme powder are 0.5～1: 1;
Surplus is a polymkeric substance, is selected from least a in polypropylene, polyethylene, polystyrene, polyester, the polymeric amide.
In a preferred implementation of Enzyme Sterilization Master Batch of the present invention, the content of wherein said lysozyme powder is 4～10 weight % of master batch weight.
In another preferred implementation of Enzyme Sterilization Master Batch of the present invention, the weight proportion of wherein said β-1,3 dextranase powder consumption and lysozyme powder consumption is 0.75～1: 1.
In another preferred implementation of Enzyme Sterilization Master Batch of the present invention, the synergistic agent consumption of wherein said anti-negative bacterium and the weight proportion of lysozyme powder consumption are 0.75～1: 1.
A second aspect of the present invention provides a kind of enzyme and sterilizing polymer filament, and it comprises:
(i) the described Enzyme Sterilization Master Batch of claim 1, content are the 1-15 weight % of monofilament weight;
(ii) surplus is a polymkeric substance, is selected from least a in polypropylene, polyethylene, polystyrene, polyester, the polymeric amide.
In a preferred implementation of enzyme and sterilizing polymer filament of the present invention, in the wherein said master batch in contained polymkeric substance and the monofilament contained component (ii) polymer phase with.In the described master batch contained polymkeric substance preferably with monofilament in contained polymkeric substance all are polypropylene.
A third aspect of the present invention provides a kind of method for preparing the enzyme and sterilizing polymer filament, and it in turn includes the following steps:
(a) preparation Enzyme Sterilization Master Batch:
The activity that content is accounted for 2～10 weight % of master batch weight is not less than 20, the weight proportion of the lysozyme powder of 000U/g, consumption and lysozyme powder is that 0.5～1: 1 activity is not less than 200, the β of 000U/g-1, the weight proportion of 3 dextranase powder, consumption and lysozyme powder is 0.5～1: 1 anti-negative bacterium synergistic agent and surplus polymkeric substance, mix, stir, melt extrude, granulation, make Enzyme Sterilization Master Batch;
(b) with (ii) polymkeric substance of the component of the Enzyme Sterilization Master Batch of 1-10 weight % and surplus, dry by the fire material, mixing successively, stir, and by forcing machine melt extrude, cooling, drawing-off, typing, rolling, make monofilament.
A fourth aspect of the present invention provides a kind of purposes of enzyme and sterilizing polymer filament, and it is used for being woven into the airstrainer of air filter.One preferred embodiment in, described air filter is conditioner, air purifier or air freshener.
Embodiment
Enzyme Sterilization Master Batch of the present invention is to adopt egg white lysozyme, β-1,3 dextranase, sodium bicarbonate or glycine or L-glutamic acid and resin compounded to make.Then, mix in the fluoropolymer resin by a certain percentage, by plastics extruder melt-spinning enzyme and sterilizing polymer filament, this monofilament has the function of sterilization, mildew-resistant, it is a kind of advanced composite material, with the filtering net that this monofilament is made, can be applicable to have antibacterial and mouldproof, the occasion of fresh air requirement.
N,O-Diacetylmuramidase is a kind of lytic enzyme that acts on microorganism wall specially, claims the microorganism wall lytic enzyme again.Bacteriolyze can be divided three classes from the source: (1) animal N,O-Diacetylmuramidase mainly separates from egg white, egg white lysozyme accounts for about 3.5% of egg white total protein, egg white lysozyme is made up of 18 kinds of 129 amino-acid residues, have 4 S-S keys, molecular weight 14000 is a kind of stable basic proteins, and pure product are white or little Huang, xanchromatic xln or unformed powder, egg white lysozyme can hydrolysis destroy β-1,4 glycosidic link.Egg white lysozyme has obtained using widely at medicine, food, cosmetic field as antiseptic-germicide, sanitas etc.; (2) also separablely in the plants such as pawpaw, Fructus Fici, barley go out N,O-Diacetylmuramidase, molecular weight is about 24000～29000, and the bacteriolyze activity is lower; (3) separablely from various microorganisms go out N,O-Diacetylmuramidase, comprise bacterium N,O-Diacetylmuramidase and fungal lysozyme, β-1,3 dextranases are fungal cell wall lytic enzymes of separating from gamboge Arthrobacter, wood bacterium such as mould, can effectively dissolve the dextran in the fungal cell wall, under the cooperation of chitoanase, chitinase, bacteriolysis better, more comprehensively.The principle of its bacteriolyze of N,O-Diacetylmuramidase of different sources is not quite similar, and is also inequality to the dissolving power of various bacterium, should match according to purposes.
The formation of bacteria cell wall: peptidoglycan is the bacteria cell wall main component, by-acetylmuramic acid (NAM), N-acetylglucosamine (NAG) and peptide " tail " (contain the L-L-Ala, D-L-glutamic acid, diaminopimelic acid or other amino acid whose tetrapeptide) form, NAM and NAG are by β-1,4 glycosidic links link to each other, peptide " tail " then is to be connected on the 3rd carbon atom of NAM by D-lactoyl carboxyl, connect by peptide " bridge " (peptide bond or a few amino acid) between the peptide tail, NAM, NAG, peptide " tail " and peptide " bridge " have been formed the multilayer reticulated structure of peptidoglycan jointly, skeleton as cell walls, fill out between the mesh with polysaccharide, wall acid, any chemical bond rupture in the said structure all can cause the damage of bacteria cell wall.Gram-positive microorganism (G
+) cell walls in peptidoglycan account for 50%～80%; Gram-negative bacteria (G
-) cell walls divide two layers, internal layer contains peptidoglycan 5%～20%, and is directly crosslinked by diaminopimelic acid, do not contain wall acid, skin contains materials such as lipoprotein, phosphatide and lipopolysaccharides.
The formation of fungal cell wall: skeleton is the webbed fibrous chitin that interweaves, fill out in the mesh with β-1, materials such as polysaccharide such as 3 dextran or chitosan and protein, what also have contains β-1 on a small quantity, 4 dextran, β-1,6 dextran, Mierocrystalline cellulose and by polysaccharide that semi-lactosi, seminose constituted, uronic acid etc.
Egg white lysozyme effectively hydrolysis destroys G
+The cell walls of bacterium has the germ-resistant effect of bacteriolyze, to G
-The bacterium hydrolytic action is relatively poor; By being used, can make it penetrate G with alkali, acid, EDTA etc.
-The bacteria cell wall adventitia, the peptidoglycan of dissolving internal layer significantly improves it to G
-The bacteriolysis of bacterium; β-1,3 dextranase and egg white lysozyme are share, also can make it effective fungi.Therefore adopt this patent Recipe can make enzyme and sterilizing polymer filament and goods have good anti-G
+Bacterium, G
-Bacterium and fungi performance.
The present invention by with the method for resin melt-spinning, N,O-Diacetylmuramidase etc. is evenly distributed in the surface and body of resin monofilament; By migration, the lasting long lasting antibacterial effect of infiltration performance; And strengthen the anti-Gram-negative bacteria ability of product with materials such as sodium bicarbonate, glycine; The fungal resistance that adds β-1,3 dextranase raising product.
Enzyme Sterilization Master Batch of the present invention, appearance is bright and clean, size is even, and it contains:
-bacterium sterilization enzyme: activity is not less than the lysozyme powder of 20000U/g, and content 2～10% in master batch, preferred 4-10%, and more preferably 5-10%, the content of lysozyme powder is high more, and its bactericidal property is strong more;
-when requiring mildew-resistant, must contain fungi sterilization enzyme: activity is not less than the β-1 of 200000U/g, 3 dextranase powder, content is equivalent to 50%～100% of lysozyme powder content, promptly the weight proportion of this composition consumption and N,O-Diacetylmuramidase consumption is 0.5～1: 1, preferred 0.6～1: 1, more preferably 0.75～1: 1, this ratio is a weight ratio.This ratio can be selected according to practical application.When the active lower simultaneously or while of β-1,3 dextranase powder and lysozyme powder was higher, the two weight proportion can be selected 0.75: 1; Active higher when the lower and lysozyme powder of the activity of β-1,3 dextranase powder, the two weight proportion can be selected 1: 1; When the active higher of β-1,3 dextranase powder and the activity of lysozyme powder when low, the two weight proportion can be selected 0.5: 1.
-anti-negative bacterium synergistic agent: be selected from sodium bicarbonate, glycine, the L-glutamic acid one or more, the proportioning of itself and lysozyme powder is 0.5～1: 1 (weight ratio), preferred 0.6～1: 1, more preferably 0.75～1: 1, the synergistic agent ratio is high more, and master batch is strong more to the sterilizing ability of negative bacterium such as intestinal bacteria.
-base-material: fluoropolymer resin is selected from least a in polypropylene, polyethylene, polystyrene, polyester, the polymeric amide.
Enzyme and sterilizing polymer filament of the present invention comprises: account for the Enzyme Sterilization Master Batch of monofilament weight 1-15 weight % and the polymkeric substance of surplus.The content of Enzyme Sterilization Master Batch requires according to anti-microbial property and Enzyme Sterilization Master Batch concentration is just selected, and guarantee final content in the product: lysozyme content is not less than 0.05%, as requires anti-negative bacterium, and synergistic agent content is not less than 0.05%; As requiring mildew-resistant, β-1,3 dextranase content is not less than 0.05%.The content of Enzyme Sterilization Master Batch is high more in the monofilament, and the bactericidal properties of monofilament is strong more, preferred 2-15%, more preferably 5-10%.Polymkeric substance in this monofilament is selected from least a in polypropylene, polyethylene, polystyrene, polyester, the polymeric amide.This polymkeric substance preferably with the Enzyme Sterilization Master Batch that is adopted in polymer phase with, like this, the polymer materials that is comprised in the monofilament be easy to master batch in polymer-compatible, help the processing of polymer filament.When monofilament was used for airstrainer, more preferably both were polypropylene.
The diameter of enzyme and sterilizing polymer filament of the present invention is not particularly limited.Its diameter can be selected according to actual needs.Its diameter is generally 0.1-1mm.When it was used for the filtering net of air filter, diameter was preferably 0.1-0.8mm, preferred again 0.1-0.5mm, preferred again 0.1-0.3mm, preferred again 0.18-0.22mm.
Enzyme Sterilization Master Batch of the present invention and enzyme and sterilizing monofilament can also contain additive, and pigment for example, used pigment can be the pigment that the routine in the industry is used, for example carbon black etc.The content of pigment is generally 0.1-1 weight %, is benchmark with the gross weight of master batch or monofilament.
Enzyme Sterilization Master Batch of the present invention adopts conventional preparation method's preparation of polymer masterbatch in the polymer processing industry.The synergistic agent of lysozyme powder, β-1,3 dextranase powder, anti-negative bacterium and polymkeric substance according to desired ratio, are mixed, stir, melt extrude, granulation, promptly make Enzyme Sterilization Master Batch of the present invention.
The preparation method of enzyme and sterilizing polymer filament of the present invention is: above-mentioned master batch particle and the polymer materials that makes dried by the fire material, and mix, stir according to desired ratio, then by forcing machine melt extrude, cooling, drawing-off, typing, rolling, make monofilament.
In a preferred implementation of the inventive method, also comprise rolling cut-out step afterwards, the monofilament of making is cut into desired length according to actual needs.
Each step of this method is described below successively.
(1) baking material
The polymer raw material of spinning level and Enzyme Sterilization Master Batch particle are put into dryer dry, baking material temperature is not particularly limited.Adopt general baking material temperature to get final product.Should be noted that: temperature can not be too high, can not be low excessively, and too high meeting makes polymer raw material softening, is bonded to piece; Temperature is low excessively, the desiccation deficiency.The baking material is preferably 50 ℃～100 ℃, more preferably 60-90 ℃.
(2) mixing and stirring
Enzyme and sterilizing polymer masterbatch of the present invention and the polymer materials that constitutes monofilament with needed part by weight, are added in the conventional stirrer and mix, and fully stir.
(3) melt extrude
Well-beaten batching is put into forcing machine melt extrude monofilament after by preheating, fusing, plasticizing, spray wire process, extrusion temperature can adopt scope conventional in the industry to carry out.
Extrusion temperature is generally 150 ℃～320 ℃.When the temperature of extruding is lower than 150 ℃, extrude not smooth, the quality of monofilament and to extrude output not so good.When extrusion temperature is higher than 320 ℃, can make polymer degradation, cause polymericular weight to descend, influence the mechanical property, intensity of monofilament etc.
Melt extrude temperature and be preferably 180-310 ℃, more preferably 200-300 ℃.
(4) cooling
The monofilament that will melt extrude put into cooling tank for example tank cool off, cooling temperature is generally 20 ℃～40 ℃.
When cooling temperature is lower than 20 ℃, can cause the monofilament crystallization inhomogeneous, poor mechanical property.When cooling temperature is higher than 40 ℃, can cause the crystallization deficiency, monofilament is softer, mechanical property and undercapacity.
The preferred 25-35 of cooling temperature ℃, more preferably 28-32 ℃, most preferably 30 ℃.
(5) drawing-off
Cooled monofilament is put into drafting machine carry out drawing-off, drawing temperature is generally 90 ℃～120 ℃, drafting multiple and is generally 5.0～6.5 times.
If drawing temperature is lower than 90 ℃, monofilament ruptures easily, if be higher than 120 ℃, polymkeric substance can soften, even local melting, is unfavorable for drawing-off.
The preferred 95-115 of drawing temperature ℃, more preferably 100-110 ℃.
Drafting multiple is generally 5.0-6.5.If drafting multiple is lower than 5, deficiencies such as the mechanical property of monofilament and intensity, and also elongation is bigger than normal.If drafting multiple is higher than 6.5, the mechanical property of monofilament and intensity etc. are bigger than normal, but elongation is less than normal.
The preferred 5.5-6.2 of drafting multiple, more preferably 5.7-6.0, most preferably 6.
(6) typing
The monofilament of drawing-off is put into forming machine carry out heat setting type, setting temperature is generally 90 ℃～120 ℃, and relaxation shrinkage is 0～8%.
Setting temperature is mainly determined according to the temperature of the environment for use of monofilament, and the general environment for use temperature of monofilament is about 70 ℃.
When setting temperature was lower than 90 ℃, typing was not enough, and monofilament is easy deformation in use.When setting temperature was higher than 120 ℃, monofilament can soften even local melting, was unfavorable for typing.
The preferred 95-115 of setting temperature ℃, more preferably 100-110 ℃.
If the relaxation shrinkage in the typing is greater than 8%, shrinking percentage is bigger than normal, and the area of the net of being made by this monofilament can dwindle so, thus cost up.
The preferred 0-6% of relaxation shrinkage in this typing.
(7) rolling
The monofilament of finalizing the design is batched on winder, and rolling tension force is generally 100CN～200CN, and the rolling general speed is 120 meters/minute～160 meters/minute.
If rolling tension force is lower than 100CN, tension force is too little so, easy deformation in the net use afterwards of being made by such monofilament.If rolling tension force is higher than 200CN, tension force is too big so, and the net of being made by silk in use also can be out of shape.
The preferred 115-150CN of rolling tension force.More preferably 120-140CN.
Equally, rolling speed is lower than 120 meters/minute or be higher than 160 meters/minute, and the net that silk is made in use is out of shape.
Rolling speed be preferably 130-150 rice/minute.
After making monofilament, can also the monofilament that make be woven into net further by the weaving method of routine.
After implementing above-mentioned technical process, can obtain the enzyme and sterilizing polymer filament that this patent relates to.Mean diameter is that the comprehensive physicals of the polymer filament of 0.2mm is: ultimate strength 〉=850cN, elongation at break 18%～50%.
The present invention is the application introducing air filtering net of N,O-Diacetylmuramidase, and materials such as N,O-Diacetylmuramidase are mixed polymkeric substance for example in the acrylic resin, improves existing monofilament fabricating technology, get access to a kind of can the germ-resistant plastic monofilament of bacteriolyze.Be woven into airstrainer with such monofilament, carry out air filtration in the antibacterial health-care air-conditioning of packing into; This monofilament also can be used for other products with antibacterial and mouldproof requirement, as air cleaner etc.
The useful effect that this patent has is: the N,O-Diacetylmuramidase material fully mixes and makes monofilament in the plastics, and the bacteriolyze sterilization life-span of monofilament is long; Promote the function of airstrainer, except filtering function, strengthened the ability of the antibacterial and mouldproof and the fresh air of filtering net; Enrich acrylic plastering spinning prescription, enlarged the range of application of acrylic resin, monofilament and fabric.
Monofilament of the present invention is weaved into filtering net in the air filter according to ordinary method.According to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is antibiotic rate＞90%, and the mildew-resistant grade is 0～1 grade.
Embodiment
Embodiment 1
With activity 20, the lysozyme powder of 000U/g, active 200, the β of 000U/g-1,3 dextranase powder, sodium bicarbonate and polypropylene mix, wherein the content of lysozyme powder, β-1,3 dextranase powder and sodium bicarbonate is respectively 2 weight %, 1.5 weight % and 2 weight %, and polyacrylic content is 94.5%, lysozyme powder, β-1,3 dextranase powder and sodium bicarbonate three's part by weight is 1: 0.75: 1.
Above-mentioned compound is stirred, adopt conventional forcing machine to melt extrude and granulation then, promptly make Enzyme Sterilization Master Batch of the present invention.
Above-mentioned master batch and polypropylene are dried by the fire material respectively under 80 ℃ of temperature.Then, with master batch and polypropylene, add in the conventional stirrer and mix, also fully stir, wherein the content of master batch is 7.5 weight %, and polypropylene content is 92.5 weight %.
Well-beaten batching is put into forcing machine, under 320 ℃ of temperature, melt extrudes, then, the monofilament that will melt extrude put into cooling tank for example tank cool off, cooling temperature is 40 ℃.
Cooled monofilament is put into drafting machine carry out drawing-off, drawing temperature is 95 ℃, and drafting multiple is 5.5 times.
The monofilament of drawing-off is put into forming machine carry out heat setting type, setting temperature is 95 ℃, and relaxation shrinkage is 3%.
The monofilament of finalizing the design is batched on winder, and rolling tension force is 110CN, and rolling speed is 125 meters/minute.
The filament diameter of making is 0.8mm.
This monofilament is weaved into filtering net in the conditioner, and according to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is: Chinese People's Anti-Japanese Military and Political College's enterobacteria rate 〉=90%, and anti-streptococcus aureus rate 〉=90%, the mildew-resistant grade is 1 grade.
Embodiment 2
With the Enzyme Sterilization Master Batch of preparation among the embodiment 1, under 80 ℃ of temperature, dry by the fire material respectively with polypropylene.Then, master batch and polypropylene added in the conventional stirrer mix, and fully stir, wherein the content of master batch is 10 weight %, and polypropylene content is 90 weight %.
The compound that fully stirs is put into forcing machine, under 300 ℃ of temperature, melt extrudes, then, the monofilament that will melt extrude put into cooling tank for example tank cool off, cooling temperature is 30 ℃.Cooled monofilament is put into drafting machine carry out drawing-off, drawing temperature is 100 ℃, and drafting multiple is 6.2 times.
The monofilament of drawing-off is put into forming machine carry out heat setting type, setting temperature is 100 ℃, and relaxation shrinkage is 6%.
The monofilament of finalizing the design is batched on winder, and rolling tension force is 140CN, and rolling speed is 150 meters/minute.
The filament diameter of making is 0.2mm.
This monofilament is weaved into filtering net in the air purifier, and according to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is: Chinese People's Anti-Japanese Military and Political College's enterobacteria rate 〉=95%, and anti-streptococcus aureus rate 〉=95%, the mildew-resistant grade is 0 grade.
Embodiment 3
With the Enzyme Sterilization Master Batch of preparation among the embodiment 1, under 80 ℃ of temperature, dry by the fire material respectively with polypropylene.Then, master batch and polypropylene added in the conventional stirrer mix, and fully stir, wherein the content of master batch is 12.5 weight %, and surplus is a polypropylene.
The compound that fully stirs is put into forcing machine, under 300 ℃ of temperature, melt extrudes, then, the monofilament that will melt extrude put into cooling tank for example tank cool off, cooling temperature is 30 ℃.Cooled monofilament is put into drafting machine carry out drawing-off, drawing temperature is 100 ℃, and drafting multiple is 6.2 times.
The monofilament of drawing-off is put into forming machine carry out heat setting type, setting temperature is 100 ℃, and relaxation shrinkage is 6%.
The monofilament of finalizing the design is batched on winder, and rolling tension force is 140CN, and rolling speed is 150 meters/minute.
The filament diameter of making is 0.2mm.
This monofilament is weaved into filtering net in the air freshener, and according to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is: Chinese People's Anti-Japanese Military and Political College's enterobacteria rate 〉=99%, and anti-streptococcus aureus rate 〉=99%, the mildew-resistant grade is 0 grade.
Embodiment 4
With activity 20, the lysozyme powder of 000U/g, active 200, the β of 000U/g-1,3 dextranase powder, sodium bicarbonate and polypropylene mix, wherein the content of lysozyme powder, β-1,3 dextranase powder and sodium bicarbonate is respectively 5 weight %, 3.75 weight % and 5 weight %, and polyacrylic content is 86.25%, lysozyme powder, β-1,3 dextranase powder and sodium bicarbonate three's part by weight is 1: 0.75: 1.
Above-mentioned compound is stirred, adopt conventional forcing machine to melt extrude and granulation then, promptly make Enzyme Sterilization Master Batch of the present invention.
Above-mentioned master batch and polystyrene are dried by the fire material respectively under 80 ℃ of temperature.Then, with master batch and polystyrene, add in the conventional stirrer and mix, also fully stir, wherein the content of master batch is 3 weight %, and polystyrene content is 97 weight %.
Then, according to embodiment 3 described procedure of processings, make the monofilament that diameter is 0.2mm.
This monofilament is weaved into filtering net in the conditioner, and according to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is: Chinese People's Anti-Japanese Military and Political College's enterobacteria rate 〉=90%, and anti-streptococcus aureus rate 〉=90%, the mildew-resistant grade is 1 grade.
Embodiment 5
Prepare Enzyme Sterilization Master Batch and monofilament according to embodiment 4 described methods, difference is: the content of Enzyme Sterilization Master Batch is 4 weight % in the monofilament.
This monofilament is weaved into filtering net in the conditioner, and according to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is: Chinese People's Anti-Japanese Military and Political College's enterobacteria rate 〉=95%, and anti-streptococcus aureus rate 〉=95%, the mildew-resistant grade is 0 grade.
Embodiment 6
Prepare Enzyme Sterilization Master Batch and monofilament according to embodiment 4 described methods, difference is: the content of Enzyme Sterilization Master Batch is 5 weight % in the monofilament.
This monofilament is weaved into filtering net in the conditioner, and according to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is: Chinese People's Anti-Japanese Military and Political College's enterobacteria rate 〉=99%, and anti-streptococcus aureus rate 〉=99%, the mildew-resistant grade is 0 grade.
Embodiment 7
With activity 20, the lysozyme powder of 000U/g, active 200, the β of 000U/g-1,3 dextranase powder, sodium bicarbonate and polypropylene mix, wherein the content of lysozyme powder, β-1,3 dextranase powder and sodium bicarbonate is respectively 10 weight %, 7.5 weight % and 10 weight %, and polyacrylic content is 72.5%, lysozyme powder, β-1,3 dextranase powder and sodium bicarbonate three's part by weight is 1: 0.75: 1.
Above-mentioned compound is stirred, adopt conventional forcing machine to melt extrude and granulation then, promptly make Enzyme Sterilization Master Batch of the present invention.
Above-mentioned master batch and polyethylene terephthalate are dried by the fire material respectively under 80 ℃ of temperature.Then, with master batch and polyethylene terephthalate, add in the conventional stirrer and mix, also fully stir, wherein the amount of the master batch of Jia Ruing is 1.5%.
Well-beaten batching is put into forcing machine, under 280 ℃ of temperature, melt extrudes, then, the monofilament that will melt extrude put into cooling tank for example tank cool off, cooling temperature is 40 ℃.
Cooled monofilament is put into drafting machine carry out drawing-off, drawing temperature is 97 ℃, and drafting multiple is 5.7 times.
The monofilament of drawing-off is put into forming machine carry out heat setting type, setting temperature is 95 ℃, and relaxation shrinkage is 3%.
The monofilament of finalizing the design is batched on winder, and rolling tension force is 115CN, and rolling speed is 130 meters/minute.
The filament diameter of making is 0.5mm.
This monofilament is weaved into filtering net in the conditioner, and according to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is: Chinese People's Anti-Japanese Military and Political College's enterobacteria rate 〉=90%, and anti-streptococcus aureus rate 〉=90%, the mildew-resistant grade is 1 grade.
Embodiment 8
Prepare Enzyme Sterilization Master Batch and monofilament according to embodiment 7 described methods, difference is: the content of Enzyme Sterilization Master Batch is 2 weight % in the monofilament.
This monofilament is weaved into filtering net in the conditioner, and according to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is: Chinese People's Anti-Japanese Military and Political College's enterobacteria rate 〉=95%, and anti-streptococcus aureus rate 〉=95%, the mildew-resistant grade is 0 grade.
Embodiment 9
Prepare Enzyme Sterilization Master Batch and monofilament according to embodiment 7 described methods, difference is: the content of Enzyme Sterilization Master Batch is 2.5 weight % in the monofilament.
This monofilament is weaved into filtering net in the conditioner, and according to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is: Chinese People's Anti-Japanese Military and Political College's enterobacteria rate 〉=99%, and anti-streptococcus aureus rate 〉=99%, the mildew-resistant grade is 0 grade.
Embodiment 10
With activity 20, the lysozyme powder of 000U/g, activity 200, the β of 000U/g-1,3 dextranase powder, sodium bicarbonate and polypropylene mix, wherein the content of lysozyme powder, β-1,3 dextranase powder and sodium bicarbonate is respectively 2 weight %, 2 weight % and 2 weight %, and surplus is a polypropylene.Wherein lysozyme powder, β-1,3 dextranase powder and sodium bicarbonate three's part by weight is 1: 1: 1.
Above-mentioned compound is stirred, adopt conventional forcing machine to melt extrude and granulation then, promptly make Enzyme Sterilization Master Batch of the present invention.
Adopt embodiment 1 described processing mode to prepare monofilament, the filament diameter of making is 0.8mm.
This monofilament is weaved into filtering net in the conditioner, and according to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is: Chinese People's Anti-Japanese Military and Political College's enterobacteria rate 〉=95%, and anti-streptococcus aureus rate 〉=95%, the mildew-resistant grade is 0 grade.
Embodiment 11
Prepare Enzyme Sterilization Master Batch and monofilament according to embodiment 10 described methods, difference is: lysozyme powder, β-1,3 dextranase powder and sodium bicarbonate three's part by weight is 1: 0.5: 0.5
This monofilament is weaved into filtering net in the conditioner, and according to the standard among the QB/T2591-2003 " antibiotic plastic-anti-microbial property test method and antibacterial effect ", the anti-microbial property and the mildew-resistant grade of testing this net.Test result is: Chinese People's Anti-Japanese Military and Political College's enterobacteria rate 〉=90%, and anti-streptococcus aureus rate 〉=90%, the mildew-resistant grade is 1 grade.
Claims (10)
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| CN101422627B (en) * | 2007-11-02 | 2013-08-21 | 青岛信锐德科技有限公司 | Multi-ecology composite air purifying agent and preparation method thereof |
| CN101979433B (en) * | 2010-10-22 | 2012-12-26 | 浙江金海环境技术股份有限公司 | Anti-mite agent-containing polymer master batch, monofilament of anti-mite air filter screen, preparation process and application thereof |
| PT3307812T (en) * | 2015-06-12 | 2024-07-01 | Carbios | Biodegradable polyester composition and uses thereof |
| EP3676329A1 (en) * | 2017-08-31 | 2020-07-08 | Carbiolice | Biodegradable polyester article comprising enzymes |
| KR102304076B1 (en) * | 2020-09-03 | 2021-09-24 | 니키 유니바사루 가부시키가이샤 | Filter media for air purification and manufacturing method thereof |
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| CN2618100Y (en) * | 2003-05-12 | 2004-05-26 | 海尔集团公司 | Air conditioner with lysozyme filtering net |
| US20050096446A1 (en) * | 2003-10-29 | 2005-05-05 | Council Of Scientific And Industrial | Tri-block copolymers and a process for the preparation of the same |
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| JPS54143588A (en) * | 1978-04-25 | 1979-11-08 | Unitika Ltd | Preparation of sterilized, immobilized enzyme |
| CN1082864A (en) * | 1992-07-24 | 1994-03-02 | 北京大学 | The health care dental floss in tooth, oral cavity |
| CN1229366A (en) * | 1996-07-25 | 1999-09-22 | 日挥通用株式会社 | Air cleaning filter |
| WO2003051281A2 (en) * | 2001-10-17 | 2003-06-26 | Ganado Research, L.L.C. | Composition and method to treat viral bacterial and parasitic infections and infestations |
| CN2618100Y (en) * | 2003-05-12 | 2004-05-26 | 海尔集团公司 | Air conditioner with lysozyme filtering net |
| US20050096446A1 (en) * | 2003-10-29 | 2005-05-05 | Council Of Scientific And Industrial | Tri-block copolymers and a process for the preparation of the same |
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