CN111040290A - High-cushioning composite foam material and preparation method thereof - Google Patents
High-cushioning composite foam material and preparation method thereof Download PDFInfo
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- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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Abstract
The invention discloses a high-cushioning composite foam material and a preparation method thereof. The high-shock-absorption composite foaming material comprises, by mass, 20-40 parts of an ethylene-vinyl acetate copolymer, 10-15 parts of a polyolefin thermoplastic elastomer, 5-15 parts of modified polypropylene, 10-20 parts of a polyester elastomer, 15-30 parts of natural latex, 0.3-0.5 part of a surfactant, 0.5-0.8 part of a borate coupling agent, 0.1-0.3 part of a crosslinking assistant, 0.7-1.2 part of a crosslinking agent and 2.5-3.5 parts of a foaming agent. The composite foaming material has good rebound resilience and cushioning property, and is suitable for wide application.
Description
Technical Field
The invention relates to the field of materials, in particular to a high-cushioning composite foam material and a preparation method thereof.
Background
Generally speaking, the sole resilience of sports shoes is bigger, and the user also can be more relaxed when wearing this sports shoes motion, but when the user carries out comparatively violent motion, because human weight reason, the impulse that the user received is also bigger, consequently, the sole of sports shoes if can not effective bradyseism, can cause the injury to the user when the user carries out violent motion, consequently for reducing the motion risk, bring good motion experience for the user, it is necessary to provide a foaming material who compromises high elasticity and high bradyseism simultaneously.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned drawbacks or problems of the background art and providing a composite foamed material having high elasticity and high cushioning properties and a method for preparing the same.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-shock-absorption composite foaming material comprises, by mass, 20-40 parts of an ethylene-vinyl acetate copolymer, 10-15 parts of a polyolefin thermoplastic elastomer, 5-15 parts of modified polypropylene, 10-20 parts of a polyester elastomer, 15-30 parts of natural latex, 0.3-0.5 part of a surfactant, 0.5-0.8 part of a borate coupling agent, 0.1-0.3 part of a crosslinking assistant, 0.7-1.2 part of a crosslinking agent and 2.5-3.5 parts of a foaming agent.
Further, the ethylene-vinyl acetate copolymer is one or more of EVA7470M, EVA460, EVA462, EVA265, EVA40L-03 and EVA 40W.
Further, the type number of the polyolefin thermoplastic elastomer is one or more of Engage8450, Engage8003, Engage7467, Engage8150 and Engage 8180.
Further, the modified polypropylene is one or more of 7684KN, AP7885 and PP3155P 3.
Further, the polyester elastomer is one or more of types EL460, EL740, EM460 and EM 630.
Further, the active agent is stearic acid and/or fatty acid.
Further, the cross-linking agent is 1, 4-bis-tert-butylperoxyisopropyl benzene.
The invention also provides a preparation method of the high-cushioning composite foaming material, which comprises the following steps,
1) weighing the following components in parts by mass: 10-15 parts of polyolefin thermoplastic elastomer, 10-20 parts of polyester elastomer, 15-30 parts of natural latex, 0.3-0.5 part of surfactant and 0.5-0.8 part of borate coupling agent;
2) mixing all the components weighed in the step 1);
3) weighing the following components in parts by mass: 20-40 parts of ethylene-vinyl acetate copolymer, 5-15 parts of modified polypropylene and 0.1-0.3 part of crosslinking assistant;
4) mixing all the components weighed in the step 3) and the mixture obtained in the step 2);
5) weighing the following components in parts by mass: 0.7-1.2 parts of cross-linking agent and 2.5-3.5 parts of foaming agent;
6) adding all the components weighed in the step 5) into the mixed material obtained in the step 4) for mixing;
7) granulating the mixture obtained in the step 6) to obtain the high-cushioning composite foam material.
Further, the mixing time in the step 2) is 12-20 minutes, and the temperature is 120-130 ℃; the mixing time in the step 4) is 9-15 minutes, and the temperature is 100-110 ℃; the mixing time in the step 6) is 4-6 minutes, and the temperature is 120-150 ℃.
Further, the foaming time in the step 7) is 3-5 minutes, and the temperature is 140-160 ℃.
As can be seen from the above description of the present invention, the present invention has the following advantages over the prior art:
by adopting the formula of the high-cushioning composite foaming material, an ideal raw material function combination can be obtained, wherein the polyester elastomer has stable performance and higher elastic modulus, and the foaming material can have good resilience after being added; meanwhile, the polyester elastomer has higher melt strength, and the cells are not easy to break in the foaming process, so that more closed cells can be formed, and the tiny closed cells are like a plurality of tiny air bags, so that the foaming material has better shock absorption performance;
according to the invention, the boric acid ester coupling agent is added into the formula of the foaming material, and can play a role in compatibilization in the material blending process, so that the natural latex and other components can be uniformly mixed, thereby ensuring that a composite foaming system is uniform and the performance of the foaming material is stable; after the natural latex is added, when the foaming material is subjected to stress impact in the movement process, the macromolecular chains of the natural latex can be oriented along the stress direction to form crystals during stretching, and the crystal grains are distributed in the amorphous macromolecules to form a reinforcing effect, so that the elasticity of the foaming material is improved, and the wear resistance of the foaming material is improved; in addition, because the natural latex has larger molecular weight, the melt viscosity is high in the foaming process, so that closed cells are favorably formed, and the cushioning effect is increased;
modified polypropylene is added in the formula and is subjected to graft modification on the polypropylene, so that the polypropylene has more branched chains, molecular chain entanglement can be formed in composite foaming, the strength of a foaming hole wall can be effectively improved, the performance of a closed cell is more stable, and a good damping effect is achieved.
In addition, the borate coupling agent can crosslink the foaming material, the melt viscosity of the foaming material is increased in a molten state, cells are not easy to break, closed cells are formed, and the damping effect is further improved.
In addition, an optimal cross-linking foaming system is constructed by using an active agent, a cross-linking auxiliary agent, a foaming agent and the like in a reasonable ratio, and the mechanical property and the resilience property of the composite material are also ensured.
The invention also provides a preparation method of the composite foaming material, the production process of the composite foaming material is simple, the time is short, the operation condition is suitable, and the obtained composite foaming material has high elasticity, better shock resistance and high wear resistance, and is suitable for wide application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are presently preferred embodiments of the invention and are not to be taken as an exclusion of other embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the claims, the specification, including the claims, as well as the claims, which follow, when using the terms "including", "having" and their variants, is intended to mean "including, but not limited to".
Example one
The invention provides a high-cushioning composite foam material which comprises, by mass, 25 parts of an ethylene-vinyl acetate copolymer, 12 parts of a polyolefin thermoplastic elastomer, 10 parts of modified polypropylene, 15 parts of a polyester elastomer, 20 parts of natural latex, 0.5 part of a surfactant, 0.6 part of a borate ester coupling agent, 0.2 part of a crosslinking assistant, 1 part of a crosslinking agent and 2.5 parts of a foaming agent.
Wherein the ethylene-vinyl acetate copolymer model is 470M manufactured by Taiwan plastic company; the polyolefin thermoplastic elastomer is a mixture of Engage8180 and Engage8450 produced by DuPont, wherein the mass ratio of Engage8180 to Engage8450 is 2: 1; the modified polypropylene is Exxon Mobil 7684 KN; the type of the polyester elastomer is Tesmann EL 430; the active agent is a mixture of stearic acid and fatty acid; the natural latex is commercially available; the boric acid ester coupling agent is produced by Qingdao four-dimensional chemical company Limited; the cross-linking agent is 1, 4-bis-tert-butylperoxyisopropyl benzene, and the foaming agent is produced by brocade wave chemical industry Limited.
The invention also provides a preparation method of the high-cushioning composite foam material, which comprises the following steps:
1) weighing the following components in parts by mass: 12 parts of polyolefin thermoplastic elastomer, 15 parts of polyester elastomer, 20 parts of natural latex, 0.5 part of surfactant and 0.6 part of borate coupling agent;
2) mixing all the components weighed in the step 1), wherein the mixing time is 12-20 minutes and the temperature is 120-130 ℃;
3) weighing the following components in parts by mass: 25 parts of ethylene-vinyl acetate copolymer, 10 parts of modified polypropylene and 0.2 part of crosslinking assistant;
4) mixing all the components weighed in the step 3) and the mixture obtained in the step 2), wherein the mixing time is 9-15 minutes and the temperature is 100-110 ℃;
5) weighing the following components in parts by mass: 1 part of cross-linking agent and 2.5 parts of foaming agent;
6) adding all the components weighed in the step 5) into the mixed material obtained in the step 4) for mixing for 4-6 minutes at the temperature of 120-150 ℃;
7) granulating the mixture obtained in the step 6) to obtain the high-cushioning composite foaming material, wherein the foaming time is 3-5 minutes, and the temperature is 140-160 ℃.
Example two
A high-shock-absorption composite foaming material comprises, by mass, 20 parts of an ethylene-vinyl acetate copolymer, 12 parts of a polyolefin thermoplastic elastomer, 15 parts of modified polypropylene, 12 parts of a polyester elastomer, 25 parts of natural latex, 0.5 part of a surfactant, 0.8 part of a borate ester coupling agent, 0.3 part of a crosslinking assistant, 1.2 parts of a crosslinking agent and 3 parts of a foaming agent.
Wherein the ethylene-vinyl acetate copolymer model is 7470M produced by Tai plastics company; the polyolefin thermoplastic elastomer is a mixture of Engage8180 and Engage8450 produced by DuPont, wherein the mass ratio of Engage8180 to Engage8450 is 1: 1; the modified polypropylene is Exxon Mobil AP 7885; the polyester elastomer is a mixture of Tesmann EL430 and EL250, the mass ratio of EL430 to EL250 is 1: 1; the active agent is a mixture of stearic acid and fatty acid; the natural latex is commercially available; the boric acid ester coupling agent is produced by Qingdao four-dimensional chemical company Limited; the cross-linking agent is 1, 4-bis-tert-butylperoxyisopropyl benzene, and the foaming agent is produced by brocade wave chemical industry Limited.
The preparation method of the high-cushioning composite foaming material is basically the same as that of the first embodiment except that the weight parts of the components are different.
EXAMPLE III
A high-shock-absorption composite foaming material comprises, by mass, 40 parts of an ethylene-vinyl acetate copolymer, 15 parts of a polyolefin thermoplastic elastomer, 5 parts of modified polypropylene, 12 parts of a polyester elastomer, 30 parts of natural latex, 0.5 part of a surfactant, 0.8 part of a borate ester coupling agent, 0.3 part of a crosslinking assistant, 1.2 parts of a crosslinking agent and 3.5 parts of a foaming agent.
Wherein the ethylene-vinyl acetate copolymer model is 7470M produced by Tai plastics company; the polyolefin thermoplastic elastomer is a mixture of Engage8180 and Engage8450 produced by DuPont, wherein the mass ratio of Engage8180 to Engage8450 is 1: 1; the modified polypropylene is Exxon Mobil AP 7885; the polyester elastomer is a mixture of Tesmann EL430 and EL250, the mass ratio of EL430 to EL250 is 1: 1; the active agent is a mixture of stearic acid and fatty acid; the natural latex is commercially available; the boric acid ester coupling agent is produced by Qingdao four-dimensional chemical company Limited; the cross-linking agent is 1, 4-bis-tert-butylperoxyisopropyl benzene, and the foaming agent is produced by brocade wave chemical industry Limited.
The preparation method of the high-cushioning composite foaming material is basically the same as that of the first embodiment except that the weight parts of the components are different.
Example four
A high-shock-absorption composite foaming material comprises, by mass, 20 parts of an ethylene-vinyl acetate copolymer, 10 parts of a polyolefin thermoplastic elastomer, 15 parts of modified polypropylene, 15 parts of a polyester elastomer, 25 parts of natural latex, 0.5 part of a surfactant, 0.5 part of a borate ester coupling agent, 0.3 part of a crosslinking assistant, 1.2 parts of a crosslinking agent and 3.0 parts of a foaming agent.
Wherein the ethylene-vinyl acetate copolymer model is 7470M produced by Tai plastics company; the polyolefin thermoplastic elastomer is a mixture of Engage8180 and Engage8450 produced by DuPont, and the mass ratio of Engage8180 to Engage8450 is 1: 1; the modified polypropylene is Exxon Mobil AP 7885; the polyester elastomer is a mixture of Tesmann EL430 and EL250, the mass ratio of EL430 to EL250 is 1: 1; the active agent is a mixture of stearic acid and fatty acid; the natural latex is commercially available; the boric acid ester coupling agent is produced by Qingdao four-dimensional chemical company Limited; the cross-linking agent is 1, 4-bis-tert-butylperoxyisopropyl benzene, and the foaming agent is produced by brocade wave chemical industry Limited.
EXAMPLE five
A high-shock-absorption composite foaming material comprises, by mass, 25 parts of an ethylene-vinyl acetate copolymer, 12 parts of a polyolefin thermoplastic elastomer, 5 parts of modified polypropylene, 12 parts of a polyester elastomer, 15 parts of natural latex, 0.5 part of a surfactant, 0.8 part of a borate ester coupling agent, 0.3 part of a crosslinking assistant, 1.2 parts of a crosslinking agent and 3.5 parts of a foaming agent.
Wherein the ethylene-vinyl acetate copolymer model is 7470M produced by Tai plastics company; the polyolefin thermoplastic elastomer is a mixture of Engage8180 and Engage8450 produced by DuPont, and the mass ratio of Engage8180 to Engage8450 is 1: 1; the modified polypropylene is Exxon Mobil AP 7885; the polyester elastomer is a mixture of Tesmann EL430 and EL250, the ratio of EL430 to EL250 is 1: 1; the active agent is a mixture of stearic acid and fatty acid; the natural latex is commercially available; the boric acid ester coupling agent is produced by Qingdao four-dimensional chemical company Limited; the cross-linking agent is 1, 4-bis-tert-butylperoxyisopropyl benzene, and the foaming agent is produced by brocade wave chemical industry Limited.
EXAMPLE six
A high-shock-absorption composite foaming material comprises, by mass, 25 parts of an ethylene-vinyl acetate copolymer, 12 parts of a polyolefin thermoplastic elastomer, 5 parts of modified polypropylene, 12 parts of a polyester elastomer, 25 parts of natural latex, 0.5 part of a surfactant, 0.6 part of a borate ester coupling agent, 0.3 part of a crosslinking assistant, 1.2 parts of a crosslinking agent and 3.5 parts of a foaming agent.
Wherein the ethylene-vinyl acetate copolymer model is 7470M produced by Tai plastics company; the polyolefin thermoplastic elastomer is a mixture of Engage8180 and Engage8450 produced by DuPont, and the mass ratio of Engage8180 to Engage8450 is 1: 1; the modified polypropylene is Exxon Mobil AP 7885; the polyester elastomer is a mixture of Tesmann EL430 and EL250, the mass ratio of EL430 to EL250 is 1: 1; the active agent is a mixture of stearic acid and fatty acid; the natural latex is commercially available; the boric acid ester coupling agent is produced by Qingdao four-dimensional chemical company Limited; the cross-linking agent is 1, 4-bis-tert-butylperoxyisopropyl benzene, and the foaming agent is produced by brocade wave chemical industry Limited.
Comparative example 1
A high-shock-absorption composite foaming material comprises, by mass, 20 parts of an ethylene-vinyl acetate copolymer, 15 parts of a polyolefin thermoplastic elastomer, 15 parts of modified polypropylene, 12 parts of a polyester elastomer, 0.5 part of a surfactant, 0.8 part of a borate coupling agent, 0.3 part of a crosslinking assistant, 1.2 parts of a crosslinking agent and 3 parts of a foaming agent.
Wherein the ethylene-vinyl acetate copolymer model is 7470M produced by Tai plastics company; the polyolefin thermoplastic elastomer is a mixture of Engage8180 and Engage8450 produced by DuPont, and the mass ratio of Engage8180 to Engage8450 is 1: 1,; the modified polypropylene is Exxon Mobil AP 7885; the polyester elastomer is a mixture of Tesmann EL430 and EL250, the mass ratio of EL430 to EL250 is 1: 1; the active agent is a mixture of stearic acid and fatty acid; the boric acid ester coupling agent is produced by Qingdao four-dimensional chemical company Limited; the cross-linking agent is 1, 4-bis-tert-butylperoxyisopropyl benzene, and the foaming agent is produced by brocade wave chemical industry Limited.
The preparation method of the high-cushioning composite foaming material is basically the same as that of the first embodiment except that the weight parts of the components are different.
Comparative example No. two
A high-shock-absorption composite foaming material comprises, by mass, 20 parts of an ethylene-vinyl acetate copolymer, 15 parts of a polyolefin thermoplastic elastomer, 12 parts of a polyester elastomer, 0.5 part of a surfactant, 0.8 part of a borate ester coupling agent, 0.3 part of a crosslinking assistant, 1.2 parts of a crosslinking agent and 3 parts of a foaming agent.
Wherein the ethylene-vinyl acetate copolymer model is 7470M produced by Tai plastics company; the polyolefin thermoplastic elastomer is a mixture of Engage8180 and Engage8450 produced by DuPont, and the mass ratio of Engage8180 to Engage8450 is 1: 1; the polyester elastomer is of type Disemann EL430 and EL250, and the proportion of EL430 to EL250 is 1: 1; the active agent is a mixture of stearic acid and fatty acid; the boric acid ester coupling agent is produced by Qingdao four-dimensional chemical company Limited; the cross-linking agent is 1, 4-bis-tert-butylperoxyisopropyl benzene, and the foaming agent is produced by brocade wave chemical industry Limited.
The preparation method of the high-cushioning composite foaming material is basically the same as that of the first embodiment except that the weight parts of the components are different.
After two examples and two comparative examples were prepared, we also performed performance tests according to national standards for the two examples and comparative examples, respectively, and the test results are shown in table 1.
Table 1: results of Performance test of examples and comparative examples
Table 1 data are data obtained according to the national standard test methods.
As can be seen from the data in Table 1, after the modified polypropylene and the natural latex are added to the formula of the composite foam material (see examples I to VI), the composite foam material has low damping performance, high resilience and low compression deformation rate, and when the natural latex is not added to the formula of the composite foam material, as in comparative example I, the damping performance is high, the resilience is low and the compression deformation rate is high. This is because the ideal combination of raw material functions can be obtained by using the formulation of the high cushioning composite foam material in the first to sixth embodiments.
The polyester elastomer has stable performance and higher elastic modulus, and the foaming material has good resilience after the polyester elastomer is added; meanwhile, the polyester elastomer has higher melt strength, and the cells are not easy to break in the foaming process, so that more closed cells can be formed, and the tiny closed cells are like a plurality of tiny air bags, so that the foaming material has better shock absorption performance;
according to the invention, the boric acid ester coupling agent is added into the formula of the foaming material, and can play a role in compatibilization in the material blending process, so that the natural latex and other components can be uniformly mixed, thereby ensuring that a composite foaming system is uniform and the performance of the foaming material is stable; after the natural latex is added, when the foaming material is subjected to stress impact in the movement process, the macromolecular chains of the natural latex can be oriented along the stress direction to form crystals during stretching, and the crystal grains are distributed in the amorphous macromolecules to form a reinforcing effect, so that the elasticity of the foaming material is improved, and the wear resistance of the foaming material is improved; in addition, the natural latex has larger molecular weight, so that the melt viscosity is high in the foaming process, and closed cells are favorably formed, thereby increasing the cushioning effect;
modified polypropylene is added in the formula and is subjected to graft modification on the polypropylene, so that the polypropylene has more branched chains, molecular chain entanglement can be formed in composite foaming, the strength of a foaming hole wall can be effectively improved, the performance of a closed cell is more stable, and a good damping effect is achieved.
In addition, the borate coupling agent can crosslink the foaming material, the melt viscosity of the foaming material is increased in a molten state, cells are not easy to break, closed cells are formed, and the damping effect is further improved.
In addition, an optimal cross-linking foaming system is constructed by using an active agent, a cross-linking auxiliary agent, a foaming agent and the like in a reasonable ratio, and the mechanical property and the resilience property of the composite material are also ensured.
The invention also provides a preparation method of the composite foaming material, the production process of the composite foaming material is simple, the time is short, the operation conditions are suitable, and the obtained composite foaming material has high elasticity, high shock resistance and high wear resistance and is suitable for wide application.
The description of the above specification and examples is intended to be illustrative of the scope of the present invention and is not intended to be limiting. Modifications, equivalents and other improvements which may occur to those skilled in the art and which may be made to the embodiments of the invention or portions thereof through a reasonable analysis, inference or limited experimentation, in light of the common general knowledge, the common general knowledge in the art and/or the prior art, are intended to be within the scope of the invention.
Claims (10)
1. A high-cushioning composite foam material is characterized in that: the material comprises, by mass, 20-40 parts of an ethylene-vinyl acetate copolymer, 10-15 parts of a polyolefin thermoplastic elastomer, 5-15 parts of modified polypropylene, 10-20 parts of a polyester elastomer, 15-30 parts of natural latex, 0.3-0.5 part of a surfactant, 0.5-0.8 part of a borate coupling agent, 0.1-0.3 part of a crosslinking assistant, 0.7-1.2 parts of a crosslinking agent and 2.5-3.5 parts of a foaming agent.
2. A high cushioning composite foam material as set forth in claim 1, wherein: the ethylene-vinyl acetate copolymer is one or more of EVA7470M, EVA460, EVA462, EVA265, EVA40L-03 and EVA 40W.
3. A high cushioning composite foam material as set forth in claim 1, wherein: the polyolefin thermoplastic elastomer is one or more of gag 8450, gag 8003, gag 7467, gag 8150 and gag 8180.
4. A high cushioning composite foam material as set forth in claim 1, wherein: the modified polypropylene is one or more of 7684KN, AP7885 and PP3155P 3.
5. A high cushioning composite foam material as set forth in claim 1, wherein: the polyester elastomer is one or more of EL460, EL740, EM460 and EM 630.
6. A high cushioning composite foam material as set forth in claim 1, wherein: the active agent is stearic acid and/or fatty acid.
7. A high cushioning composite foam material as set forth in claim 1, wherein: the cross-linking agent is 1, 4-bis (tert-butylperoxyisopropyl) benzene.
8. A preparation method of a high-cushioning composite foam material is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
1) weighing the following components in parts by mass: 10-15 parts of polyolefin thermoplastic elastomer, 10-20 parts of polyester elastomer, 15-30 parts of natural latex, 0.3-0.5 part of surfactant and 0.5-0.8 part of borate coupling agent;
2) mixing all the components weighed in the step 1);
3) weighing the following components in parts by mass: 20-40 parts of ethylene-vinyl acetate copolymer, 5-15 parts of modified polypropylene and 0.1-0.3 part of crosslinking assistant;
4) mixing all the components weighed in the step 3) and the mixture obtained in the step 2);
5) weighing the following components in parts by mass: 0.7-1.2 parts of cross-linking agent and 2.5-3.5 parts of foaming agent;
6) adding all the components weighed in the step 5) into the mixed material obtained in the step 4) for mixing;
7) granulating the mixture obtained in the step 6) to obtain the high-cushioning composite foam material.
9. The method for preparing a high cushioning composite foam material as claimed in claim 8, wherein: the mixing time in the step 2) is 12 to 20 minutes, and the temperature is 120 to 130 ℃; the mixing time in the step 4) is 9-15 minutes, and the temperature is 100-110 ℃; the mixing time in the step 6) is 4-6 minutes, and the temperature is 120-150 ℃.
10. The method for preparing a high cushioning composite foam material as claimed in claim 8, wherein: the foaming time in the step 7) is 3-5 minutes, and the temperature is 140-160 ℃.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106263268A (en) * | 2016-08-28 | 2017-01-04 | 杭州锴越新材料有限公司 | Far infrared, warm, health care shoe pad and preparation method thereof |
| CN110229411A (en) * | 2019-06-21 | 2019-09-13 | 安踏（中国）有限公司 | A kind of EVA gross porosity composite foam material and preparation method |
-
2019
- 2019-12-27 CN CN201911378324.8A patent/CN111040290A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106263268A (en) * | 2016-08-28 | 2017-01-04 | 杭州锴越新材料有限公司 | Far infrared, warm, health care shoe pad and preparation method thereof |
| CN110229411A (en) * | 2019-06-21 | 2019-09-13 | 安踏（中国）有限公司 | A kind of EVA gross porosity composite foam material and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 曹正松等: "乳胶/EVA/LDPE/PVC共混发泡片材的研制", 《弹性体》 * |
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Application publication date: 20200421 |