CN114456577A - Antistatic E-TPU material and preparation method thereof - Google Patents
Antistatic E-TPU material and preparation method thereof Download PDFInfo
- Publication number
- CN114456577A CN114456577A CN202111578078.8A CN202111578078A CN114456577A CN 114456577 A CN114456577 A CN 114456577A CN 202111578078 A CN202111578078 A CN 202111578078A CN 114456577 A CN114456577 A CN 114456577A
- Authority
- CN
- China
- Prior art keywords
- tpu
- graphene oxide
- antistatic
- graphene
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/194—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/198—Graphene oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
本申请公开了一种抗静电E‑TPU材料及其制备方法，包括将氧化石墨烯分散于去离子水中，得到氧化石墨烯分散液；将所述氧化石墨烯分散液分散于有机溶剂中，得到氧化石墨烯有机溶液；利用所述氧化石墨烯有机溶液对E‑TPU粒料进行浸渍处理，再进行干燥处理，得到氧化石墨烯包覆的E‑TPU粒料；将所述氧化石墨烯包覆的E‑TPU粒料完全浸渍于还原剂溶液中进行还原处理，得到石墨烯包覆的E‑TPU粒料；对所述石墨烯包覆的E‑TPU粒料进行加热成型处理，得到抗静电E‑TPU材料。本申请以氧化石墨烯和E‑TPU粒料为原料，通过浸渍、干燥、还原和加热成型的制备工艺，实现石墨烯在E‑TPU颗粒间的填充，得到抗静电性能大大提升的抗静电E‑TPIU材料，稳定性好，同时制备工艺简单易行，生产成本低。
The application discloses an antistatic E-TPU material and a preparation method thereof, comprising dispersing graphene oxide in deionized water to obtain a graphene oxide dispersion; dispersing the graphene oxide dispersion in an organic solvent to obtain Graphene oxide organic solution; Utilize described graphene oxide organic solution to carry out dipping treatment to E-TPU pellet, then carry out drying treatment, obtain the E-TPU pellet of graphene oxide coating; Coating described graphene oxide The E-TPU pellets are completely immersed in the reducing agent solution and carry out reduction treatment to obtain the graphene-coated E-TPU pellets; the graphene-coated E-TPU pellets are subjected to thermoforming treatment to obtain antistatic E‑TPU material. The application uses graphene oxide and E-TPU pellets as raw materials, and realizes the filling of graphene between E-TPU particles through the preparation process of impregnation, drying, reduction and heating molding, and obtains antistatic E-TPU with greatly improved antistatic performance. ‑TPIU material, good stability, simple and easy preparation process and low production cost.
Description
Technical Field
The application relates to the technical field of functional materials, in particular to an antistatic E-TPU material and a preparation method thereof.
Background
The E-TPU material is a novel polymer material with high elasticity and light weight, the volume of the particle material is expanded by multiple times after foaming, and the size and the shape of the particle material are the same as those of popcorn, so the E-TPU material is also called the popcorn in an image; meanwhile, the E-TPU material integrates the characteristics of the TPU and the advantages of the foam, overcomes the defects of heavy weight, high hardness, poor damping performance and the like of the TPU raw material, and has the characteristics of excellent ultralow density, high resilience, wear resistance, folding resistance and the like; in the prior art, the E-TPU material is widely applied to a plurality of industries such as shoe materials, packaging materials, buffer gaskets, vibration damping materials, automotive interiors and tires, and particularly in the field of sports shoes, compared with the traditional EVA insole, the E-TPU insole is made of a physically foamed polyurethane material, is in a popcorn shape after being formed, has excellent resilience and deformation restorability, and has far higher performance than the traditional EVA material.
However, with the increasing application of E-TPU materials, higher requirements are put on the E-TPU materials in some special fields and places, such as performance requirements of antistatic property, yellowing resistance and the like; in the prior art, most of the functional researches on the E-TPU material adopt the traditional additive addition method, the process is complicated, the processing difficulty is high, and the antistatic performance of the E-TPU material is not researched in the prior art.
Therefore, an improved antistatic E-TPU material and a preparation method thereof are needed, the antistatic performance of the E-TPU material is improved, the process flow is simplified, and the cost is reduced.
Disclosure of Invention
In order to solve the problems in the prior art, the application provides an antistatic E-TPU material and a preparation method thereof, which can realize good antistatic performance, simplify the process and reduce the cost.
The technical scheme is as follows:
the application provides a preparation method of an antistatic E-TPU material, which comprises the following steps:
s1, dispersing graphene oxide in deionized water to obtain a graphene oxide dispersion liquid;
s2, dispersing the graphene oxide dispersion liquid in an organic solvent to obtain a graphene oxide organic solution; wherein the weight ratio of the organic solvent to the deionized water is (1-9) to 1;
s3, carrying out dipping treatment on the E-TPU granules by using the graphene oxide organic solution, and then carrying out drying treatment to obtain graphene oxide coated E-TPU granules;
s4, completely dipping the graphene oxide coated E-TPU granules into a reducing agent solution for reduction treatment to obtain graphene coated E-TPU granules;
s5, carrying out heating forming treatment on the graphene-coated E-TPU granules to obtain the antistatic E-TPU material.
Further, the organic solvent is at least one of tetrahydrofuran and N, N-dimethylformamide.
Further, the concentration of the graphene oxide in the graphene oxide organic solution is 0.1-2 g/L.
Further, the step of S2 includes:
and dispersing the graphene oxide dispersion liquid in an organic solvent for 5min, and performing high-frequency ultrasonic treatment for 10-20 min to obtain the graphene oxide organic solution.
Further, the drying process in the step S3 is:
and drying the E-TPU granules subjected to dipping treatment in a vacuum environment at the temperature of 60-80 ℃ to obtain the graphene oxide coated E-TPU granules.
Further, the reducing agent in the reducing agent solution is at least one of sodium citrate or sodium ascorbate.
Further, the reduction processing in the step S4 is:
and placing the graphene oxide coated E-TPU granules into a reducing agent solution with the concentration of 5-50 g/L, and reducing for 2-8 hours at the reduction temperature of 60-70 ℃ to obtain the graphene coated E-TPU granules.
Further, the heating forming treatment is steam heating forming treatment or microwave heating forming treatment.
Further, the steam heat forming treatment includes:
and heating the E-TPU granules coated with the graphene for 5-60 s at a heating temperature of 120-150 ℃ to obtain the antistatic E-TPU material.
The application also provides an antistatic E-TPU material, which is obtained by the preparation method of the antistatic E-TPU material, and the antistatic E-TPU material comprises E-TPU particles and graphene filled between the E-TPU particles in a skeleton form.
The application has the following beneficial effects:
1. according to the antistatic E-TPU material and the preparation method thereof, an impregnation method is adopted, the surface of the E-TPU granules is slightly swelled by an organic solvent, so that solvent molecules can carry graphene oxide to permeate into the surface layer of the E-TPU granules, and then the E-TPU granules are coated by the graphene through drying treatment and reduction treatment; in addition, the method is combined with special heating forming treatment, the 'popcorn' structure of the E-TPU material is guaranteed to be unchanged, so that the graphene is filled among E-TPU particles in a skeleton form to form a conductive network channel, and good antistatic performance can be realized; meanwhile, the preparation method is simple and easy to implement, greatly reduces the process difficulty, simplifies the process flow, reduces the production cost, and can be widely applied to the fields of antistatic soles, antistatic tires and the like.
2. According to the method, reduced graphene is used as a conductive agent and only needs to be coated on the E-TPU surface layer, and compared with the traditional process of adding the conductive agent and then melting and extruding, the method has the advantages that the use amount of the conductive agent is extremely small, and the material cost is reduced.
3. The method adopts the Vc aqueous solution as the reducing agent to carry out chemical reduction on the E-TPU granules coated with the graphene oxide, can ensure that the structure of the E-TPU is not damaged, can ensure that the reduction process is more sufficient, has good reduction effect, and fully embodies the green chemical process concept by taking sodium citrate or sodium ascorbate as the reducing agent and water as the solvent.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings used in the embodiments will be briefly described, wherein like parts are designated by like reference numerals. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a flow chart of a process for making an antistatic E-TPU material in one possible embodiment of the present application;
FIG. 2 is a SEM image of the surface layer of the antistatic E-TPU material of example 2.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments, and therefore, the present application is not to be construed as limited. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than illustrated or otherwise described below. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
In order to realize the improvement of the antistatic performance of the E-TPU material by combining the special structure of the E-TPU material, the application provides a preparation method of the antistatic E-TPU material, as shown in the attached figure 1 of the specification, the preparation method comprises the following steps:
s1, dispersing graphene oxide in deionized water to obtain a graphene oxide dispersion liquid;
s2, dispersing the graphene oxide dispersion liquid in an organic solvent to obtain a graphene oxide organic solution; wherein the weight ratio of the organic solvent to the deionized water is (1-9) to 1;
s3, carrying out dipping treatment on the E-TPU granules by using the graphene oxide organic solution, and then carrying out drying treatment to obtain graphene oxide coated E-TPU granules;
s4, completely dipping the graphene oxide coated E-TPU granules into a reducing agent solution for reduction treatment to obtain graphene coated E-TPU granules;
s5, carrying out heating forming treatment on the graphene-coated E-TPU granules to obtain the antistatic E-TPU material.
Specifically, in one possible embodiment of the present specification, the organic solvent used in the S2 step is at least one of tetrahydrofuran and N, N-dimethylformamide.
The surface of the graphene oxide contains a large number of oxygen-containing functional groups, and N, N-Dimethylformamide (DMF) is taken as an organic solvent as an example, if the graphene oxide is directly dispersed in a DMF solution, the graphene oxide is extremely easy to stand and settle, so that the dispersion effect of the graphene oxide is poor, and the final antistatic performance of the antistatic E-TPU material is adversely affected due to the influence on the subsequent preparation process; based on the consideration, in the steps S1 to S2, graphene oxide is firstly dispersed in deionized water by utilizing the characteristic that graphene oxide has a large number of oxygen-containing functional groups and is very easy to disperse in an aqueous solution, so as to ensure the uniformity of dispersion, and then the graphene oxide dispersion liquid is mixed with an organic solvent for dispersion by utilizing the mutual solubility of deionized water and N, N-dimethylformamide (or tetrahydrofuran), so as to realize good and stable dispersion of graphene oxide in a mixed solvent.
Specifically, in one possible embodiment of the present specification, the step of dispersing the graphene oxide dispersion in the organic solvent in the S2 step may be specifically:
and dispersing the graphene oxide dispersion liquid in an organic solvent, firstly mechanically dispersing for 5min, and then carrying out high-frequency ultrasonic treatment for 10-20 min to obtain the graphene oxide organic solution.
Wherein, mechanical dispersion can be selected as the stirring for the preliminary dispersion of graphite oxide, later high frequency supersound further guarantees that graphite oxide can be even, disperse to organic solvent steadily in, and organic solvent carries graphite oxide to remove in the follow-up step of being convenient for.
Specifically, in one possible embodiment of the present specification, the concentration of the graphene oxide in the graphene oxide organic solution obtained in the step S2 is 0.1 to 2g/L, and the mass percentage of the graphene oxide is 0.01 to 0.2%, which can ensure that the antistatic E-TPU material has good antistatic performance, and also avoid the production cost that may be generated by higher concentration; compared with the traditional preparation process of the antistatic material, the graphene oxide raw material required by the preparation method of the antistatic E-TPU material provided by the embodiment is less, the material cost can be greatly reduced, the application can realize the improvement of the antistatic performance to a greater extent with less addition amount of the graphene oxide, and the conductivity improvement effect is good.
Specifically, in other possible embodiments of the present disclosure, the weight ratio between the organic solvent and the deionized water in the S2 step is (1-5): 1.
specifically, in the step S3, the time for carrying out dipping treatment on the E-TPU granules by using the graphene oxide organic solution is 30-60S, and the proper extension of the dipping time is beneficial to the dispersion of the graphene oxide, the dipping uniformity is promoted, and the uniformity of the conductivity of the finished antistatic E-TPU material is further ensured; compared with the common TPU granules, the volume of the E-TPU granules is expanded by 5-8 times after foaming, the diameter of a foam hole is about 30-300 mu m, and in the step S3, the E-TPU granules can be slightly expanded through impregnation treatment, namely, the E-TPU granules in the step finally present a micron-scale swelling state of a surface layer through the impregnation treatment, so that organic solvent molecules can carry graphene oxide to permeate into the surface layer of the slightly-expanded E-TPU granules.
Specifically, the drying process in the step S3 is:
and drying the impregnated E-TPU granules in a vacuum environment at the temperature of 60-80 ℃ to obtain the graphene oxide coated E-TPU granules.
Before the drying process begins, the graphene oxide permeates into the surface layer of the E-TPU granules along with the organic solvent, so that the drying process can recover the surface layer of the E-TPU granules from a slightly swelling state on one hand, ensure that the graphene oxide is embedded into the surface layer of the E-TPU granules and is firmly embedded, and realize the coating of the graphene oxide on the E-TPU granules; on the other hand, the drying treatment can extrude the organic solvent molecules in the impregnated E-TPU granules or volatilize the organic solvent molecules, which is beneficial to improving the overall antistatic performance of the antistatic E-TPU material.
Specifically, in the step S4, the reducing agent in the reducing agent solution is at least one of sodium citrate and sodium ascorbate, that is, in the step, the reduction treatment is a chemical reduction treatment of the graphene oxide-coated E-TPU pellets by utilizing the strong reducibility of the Vc aqueous solution; meanwhile, the chemical reduction treatment method can realize the reduction of carboxyl functional groups on the surface of the graphene oxide, and can also realize the reduction of functional groups such as carboxyl, epoxy and the like, and the reduction effect is good; in addition, the reduction treatment by using the Vc aqueous solution does not destroy the original structural advantages of the E-TPU granules, and can avoid the condition that the E-TPU granules are softened or even irreversibly deformed due to the use of an excessively high temperature (for example, 200 ℃) in the traditional thermal reduction method.
Specifically, the reduction processing in the step S4 is:
and (3) placing the E-TPU granules coated with the graphene oxide into a reducing agent solution with the concentration of 5-50 g/L, and reducing for 2-8 hours at the reduction temperature of 60-70 ℃ to obtain the E-TPU granules coated with the graphene oxide.
Specifically, in one possible embodiment of the present specification, the concentration of the reducing agent solution in the step of S4 is 25 to 50 g/L.
Specifically, in one possible embodiment of the present specification, the heating and forming treatment in the step S5 is a steam heating and forming treatment, and the steam heating and forming treatment is to heat the graphene-coated E-TPU pellets at a heating temperature of 120 to 150 ℃ for 5 to 60 seconds to obtain the antistatic E-TPU material.
The method comprises the following steps of filling water vapor into an upper die and a lower die of the graphene-coated E-TPU granular material simultaneously, so that the water vapor conducts heat on the surface of the graphene-coated E-TPU granular material, heating is realized through physical heat conduction, the density of the antistatic E-TPI material is favorably reduced, and the overall performance is improved.
Specifically, in another possible embodiment of the present specification, the heating and forming treatment in the step S5 is a microwave heating and forming treatment, and the graphene-coated E-TPU granules are heated for 5 to 30 seconds at a frequency of 300MHz to 300GHz to obtain an antistatic E-TPU material; in the process, the microwave heating utilizes penetrating radiation heating, so that the E-TPU granules coated with the graphene are uniformly heated, and the molding efficiency is higher.
Preferably, in other possible embodiments of the present description, the microwave frequency is set to 2450MHz and the resulting antistatic E-TPU material is placed under this frequency and heated for 30s to obtain the antistatic E-TPU material.
Furthermore, both the steam thermoforming process and the microwave thermoforming process can be carried out in a mold, so that the popcorn structure of the E-TPU granules remains unchanged under the protection of the mold.
The embodiment also provides an antistatic E-TPU material, which is obtained by the preparation method of the antistatic E-TPU material, and the antistatic E-TPU material comprises E-TPU particles and graphene filled among the E-TPU particles in a skeleton form, so that the graphene forms a conductive network passage among the E-TPU particles, and the antistatic performance is excellent.
In the embodiment, an antistatic E-TPU composite material A is also provided, and the E-TPU composite material A is prepared by the following preparation method:
dispersing graphene oxide in deionized water to obtain a graphene oxide dispersion liquid;
dispersing the graphene oxide dispersion liquid in the organic solvent according to the weight ratio of the organic solvent to the deionized water of 9:1 for 5min, and performing high-frequency ultrasonic treatment for 10min to obtain a graphene oxide organic solution with the concentration of 0.1 g/L;
carrying out dipping treatment on the E-TPU granules for 60s by using an organic graphene oxide solution, and then carrying out drying treatment to obtain E-TPU granules coated with graphene oxide;
completely dipping the E-TPU granules coated with the graphene oxide in 5g/L reducing agent solution, and carrying out reduction treatment for 8h at the temperature of 60 ℃ to obtain the E-TPU granules coated with the graphene oxide;
and (3) carrying out steam heating forming treatment on the graphene-coated E-TPU granules to obtain the antistatic E-TPU material, namely the E-TPU composite material A.
Example 2
The preparation method of the antistatic E-TPU material of the embodiment comprises the following steps:
dispersing graphene oxide in deionized water to obtain a graphene oxide dispersion liquid;
dispersing the graphene oxide dispersion liquid in an organic solvent according to the weight ratio of the organic solvent to deionized water of 1:1 for 5min, and performing high-frequency ultrasonic treatment for 20min to obtain a graphene oxide organic solution with the concentration of 2 g/L;
carrying out dipping treatment on the E-TPU granules for 30s by using an organic graphene oxide solution, and then carrying out drying treatment to obtain E-TPU granules coated with graphene oxide;
completely dipping the E-TPU granules coated with the graphene oxide in 50g/L reducing agent solution, and carrying out reduction treatment for 2h at the temperature of 60 ℃ to obtain the E-TPU granules coated with the graphene oxide;
and carrying out microwave heating forming treatment on the graphene-coated E-TPU granules to obtain the antistatic E-TPU material, namely the E-TPU composite material B.
Example 3
The preparation method of the antistatic E-TPU material of the embodiment comprises the following steps:
dispersing graphene oxide in deionized water to obtain a graphene oxide dispersion liquid;
dispersing the graphene oxide dispersion liquid in an organic solvent according to the weight ratio of the organic solvent to deionized water of 5:1 for 5min, and performing high-frequency ultrasonic treatment for 20min to obtain a graphene oxide organic solution with the concentration of 1 g/L;
carrying out dipping treatment on the E-TPU granules for 40s by using an organic graphene oxide solution, and then carrying out drying treatment to obtain E-TPU granules coated with graphene oxide;
completely dipping the E-TPU granules coated with the graphene oxide in 25g/L reducing agent solution, and carrying out reduction treatment for 4h at the temperature of 60 ℃ to obtain the E-TPU granules coated with the graphene oxide;
and (3) carrying out steam heating forming treatment on the graphene-coated E-TPU granules to obtain the antistatic E-TPU material, namely the E-TPU composite material C.
Comparative example 1
Physically mixing 99.9 wt% of TPU and 0.1 wt% of graphene oxide, performing twin-screw extrusion at 170 ℃, and preparing a popcorn structure by using a supercritical reaction kettle to obtain E-TPU composite graphene granules; and then, further carrying out steam heating forming treatment on the E-TPU composite graphene granules to obtain an E-TPU composite material D.
Comparative example 2
Physically mixing 99.5 wt% of TPU and 0.5 wt% of graphene oxide, performing double-screw extrusion at 200 ℃, and preparing a popcorn structure by using a supercritical reaction kettle to obtain E-TPU composite graphene granules; and then, further carrying out steam heating forming treatment on the E-TPU composite graphene granules to obtain the E-TPU composite material E.
Comparative example 3
Physically mixing 99 wt% of TPU and 1 wt% of graphene oxide, performing twin-screw extrusion at 200 ℃, and preparing a popcorn structure by using a supercritical reaction kettle to obtain E-TPU composite graphene granules; and then, further carrying out steam heating forming treatment on the E-TPU composite graphene granules to obtain an E-TPU composite material F.
The volume resistivity of the above E-TPU composite materials A to F was respectively measured using a multimeter, and both surfaces of the electrode contact were coated with a conductive adhesive to reduce the contact resistance, and then the volume resistivity measurement results of the E-TPU composite materials A to F prepared in the above examples 1 to 3 and comparative examples 1 to 3 are shown in Table 1.
In comparative examples 1-3, graphene oxide was directly dispersed in TPU pellets, which resulted in their tendency to agglomerate, poor dispersibility, and poor conductivity; in addition, in the preparation process, the addition amount of the graphene oxide is large, but the volume conductivity is still high, and the conductivity is poor, so that a large amount of waste of the graphene oxide is caused, and meanwhile, in order to obtain relatively good conductivity, the temperature needs to be controlled to be more than 170 ℃, so that the requirement on production equipment is higher, the production load is also increased, and the cost reduction and the efficiency improvement of industrialization are not facilitated.
The preparation method of the antistatic E-TPU material provided by the application is simple in process and easy to operate, requirements on equipment and production conditions in a production process are low, the production cost can be greatly reduced, and particularly, as shown in the attached drawing 2 of the specification, in the E-TPU composite material B prepared in the embodiment 2, folded graphene is embedded into the surface of the E-TPU, so that the volume resistivity of the E-TPU composite material B can reach 1.09 multiplied by 10 to the minimum6Omega cm compares in traditional E-TPU, and the antistatic properties of antistatic E-TPU material that this application provided has obtained very big promotion.
TABLE 1 volume resistivity of antistatic E-TPU materials prepared in the various examples
| Sample numbering | Volume resistivity/Ω - | |
| Example 1 | E-TPU composite A | 6.88×108 |
| Example 2 | E-TPU composite B | 1.09×106 |
| Example 3 | E-TPU composite C | 7.91×106 |
| Comparative example 1 | E-TPU composite D | 1.42×1013 |
| Comparative example 2 | E-TPU composite E | 3.99×108 |
| Comparative example 3 | E-TPU composite F | 8.50×106 |
While the present application has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111578078.8A CN114456577B (en) | 2021-12-22 | 2021-12-22 | Antistatic E-TPU material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111578078.8A CN114456577B (en) | 2021-12-22 | 2021-12-22 | Antistatic E-TPU material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114456577A true CN114456577A (en) | 2022-05-10 |
| CN114456577B CN114456577B (en) | 2023-09-05 |
Family
ID=81405868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111578078.8A Active CN114456577B (en) | 2021-12-22 | 2021-12-22 | Antistatic E-TPU material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114456577B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104039695A (en) * | 2011-09-19 | 2014-09-10 | 卧龙岗大学 | Reduced graphene oxide and method of producing same |
| CN104804204A (en) * | 2015-04-23 | 2015-07-29 | 福州大学 | Graphene/thermoplastic polyurethane composite and preparation method thereof |
| US20180051171A1 (en) * | 2015-03-13 | 2018-02-22 | Basf Se | Electrically conductive particle foams based on thermoplastic elastomers |
| WO2019232124A1 (en) * | 2018-05-31 | 2019-12-05 | Nanotek Instruments, Inc. | Graphene foam-based sealing materials |
| CN110970234A (en) * | 2019-11-20 | 2020-04-07 | 南通纺织丝绸产业技术研究院 | A kind of preparation method of vinylon fabric-based graphene/manganese dioxide electrode material |
| WO2020130499A2 (en) * | 2018-12-21 | 2020-06-25 | 한국과학기술원 | Porous structure-based graphene foam and manufacturing method therefor |
-
2021
- 2021-12-22 CN CN202111578078.8A patent/CN114456577B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104039695A (en) * | 2011-09-19 | 2014-09-10 | 卧龙岗大学 | Reduced graphene oxide and method of producing same |
| US20180051171A1 (en) * | 2015-03-13 | 2018-02-22 | Basf Se | Electrically conductive particle foams based on thermoplastic elastomers |
| CN104804204A (en) * | 2015-04-23 | 2015-07-29 | 福州大学 | Graphene/thermoplastic polyurethane composite and preparation method thereof |
| WO2019232124A1 (en) * | 2018-05-31 | 2019-12-05 | Nanotek Instruments, Inc. | Graphene foam-based sealing materials |
| WO2020130499A2 (en) * | 2018-12-21 | 2020-06-25 | 한국과학기술원 | Porous structure-based graphene foam and manufacturing method therefor |
| CN110970234A (en) * | 2019-11-20 | 2020-04-07 | 南通纺织丝绸产业技术研究院 | A kind of preparation method of vinylon fabric-based graphene/manganese dioxide electrode material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114456577B (en) | 2023-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106243379A (en) | A kind of electromagnetic shielding foamed composite based on graphene oxide and polymer and preparation method | |
| CN103073891B (en) | Preparation method of high-conductivity flexible conductive composite material | |
| CN107540869B (en) | Preparation method of polymer foam-based multilevel carbon nano composite pressure-sensitive material | |
| CN108359056B (en) | Self-healing hydrogel of cellulose-dopamine-polymer composite material and preparation method and application thereof | |
| CN109777014B (en) | High-strength anti-freezing conductive polypyrrole hydrogel and preparation method thereof | |
| CN103254656B (en) | A kind of flexible polymer-based grapheme foam material and preparation method thereof | |
| CN107081916A (en) | The preparation method of nickel coated glass fibres fabric/epoxy resin electromagnetic shielding composite material | |
| CN102911360A (en) | Graphene modified polyimide-based composite and preparation method thereof | |
| CN110484216A (en) | Graphite adsorbs phase-change accumulation energy powder, preparation method and applications | |
| CN107652465A (en) | A kind of preparation method of low-voltage driving electro shape memory composite | |
| CN107652624A (en) | A kind of three-dimensional porous graphene/melamine foam composite electromagnetic shield materials and preparation method thereof | |
| CN116042132A (en) | A kind of three-dimensional skeleton material, electronic encapsulation glue and its preparation method and application | |
| CN113265088B (en) | Preparation method of ethylene-vinyl acetate copolymer porous shape memory material | |
| CN104448303B (en) | A kind of ethylene-vinyl acetate copolymer/polyaniline composite conducting material and preparation method thereof | |
| CN114456577A (en) | Antistatic E-TPU material and preparation method thereof | |
| CN107359014B (en) | Transparent conductive film and preparation method thereof | |
| CN111454416A (en) | High-phase-change energy-storage polyurethane foam material and preparation method thereof | |
| KR101993883B1 (en) | Method for Manufacturing Non Metallic Silicon Complex Using Nano Hole of CNT and the Silicon Complex | |
| CN107068235A (en) | A kind of three-dimensional stretchable conductive material and preparation method thereof | |
| CN106009517B (en) | A kind of epoxy resin/nickel-coated carbon fibers composite conducting foam and preparation method thereof | |
| CN110237781B (en) | Preparation method of high-sensitivity 3D printing flexible sensor | |
| CN101290836A (en) | Method for Improving Specific Capacitance of Phenolic-based Activated Carbon Fiber | |
| CN106219531A (en) | A kind of preparation method of graphite/nanometer carbon pipe array composite heat conduction film | |
| CN115746499A (en) | High-thermal-conductivity hexagonal boron nitride/polyphenylsulfone/polyether-ether-ketone composite film material and preparation method thereof | |
| CN108329520A (en) | A kind of resin graphene composite material, preparation method and its application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |