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Rubber-plastic compound foaming material, and preparation method and application thereof

A composite foaming, rubber-plastic technology, applied in applications, clothing, footwear, etc., can solve the problems of poor cushioning, rebound performance, poor cushioning performance, and poor fatigue resistance of materials, and achieve good recovery performance , Excellent rebound performance, and the effect of meeting the performance requirements

Active Publication Date: 2017-06-23
ANTA CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of sole material generally has high hardness and high density, and the performance of the material such as cushioning and rebound is poor.
At present, the wear-resistant EVA foam materials commonly used in the market are hard, the rebound is generally about 40%, and the fatigue resistance is poor.
After wearing for a period of time, there will be problems such as collapse and poor recovery. At the same time, the sole will quickly lose its elasticity, and the cushioning performance will deteriorate, which will seriously affect the wearing experience and appearance structure of the shoe.

Method used

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  • Rubber-plastic compound foaming material, and preparation method and application thereof
  • Rubber-plastic compound foaming material, and preparation method and application thereof

Examples

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preparation example Construction

[0047]The preparation material of the rubber-plastic composite foaming material described in the present application includes 10-20 parts by mass of EPDM rubber, preferably 12-15 parts by mass of EPDM rubber. In the present application, the hardness of the EPDM rubber is preferably 60A-70A. In the embodiment of the present application, the type of the EPDM rubber may be one or more of IP3745, EPDM8800 and EPDM9500.

[0048] In parts by mass, the material includes 10-20 parts by mass of polyolefin block copolymer, preferably 11-18 parts by mass of polyolefin block copolymer. In the present application, the hardness of the polyolefin block copolymer is preferably 60A-90A. In the embodiment of the present application, the model of the polyolefin block copolymer may be one or more of Infuse9100, Infuse9107, Infuse9500 and Infuse9507. In a preferred embodiment of the present application, the hardness of the EPDM rubber is 60A-70A, and the hardness of the polyolefin block copolyme...

Embodiment 1

[0072] A soft, high-elastic and wear-resistant rubber-plastic composite foaming material for sports shoe soles is formulated as follows:

[0073] Ethylene-vinyl acetate copolymer: 42 parts by mass;

[0074] Thermoplastic elastomer: 30 parts by mass;

[0075] EPDM rubber: 13 parts by mass;

[0076] Polyolefin block copolymer: 15 parts by mass;

[0077] Wear-resistant agent: 8 parts by mass;

[0078] Anti-shrinkage agent: 1.5 parts by mass;

[0079] Talcum powder: 5 parts by mass;

[0080] Zinc oxide ZnO: 2.0 parts by mass;

[0081] Stearic acid St: 0.5 parts by mass;

[0082] Zinc stearate ZnSt: 1.0 parts by mass;

[0083] Cross-linking auxiliary agent: 0.1 parts by mass;

[0084] Crosslinking agent: 1.0 parts by mass;

[0085] Foaming agent: 3.1 parts by mass;

[0086] Titanium dioxide: 2.5 parts by mass.

[0087]Among them, the model of ethylene-vinyl acetate copolymer is 7470M, produced by Formosa Plastics Corporation; the thermoplastic elastomer consists of 15 pa...

Embodiment 2

[0092] A soft, high-elastic and wear-resistant rubber-plastic composite foaming material for sports shoe soles is formulated as follows:

[0093] Ethylene-vinyl acetate copolymer: 50 parts by mass;

[0094] Thermoplastic elastomer: 25 parts by mass;

[0095] EPDM rubber: 15 parts by mass;

[0096] Polyolefin block copolymer: 10 parts by mass;

[0097] Wear-resistant agent: 10 parts by mass;

[0098] Anti-shrinkage agent: 2.5 parts by mass;

[0099] Talcum powder: 5 parts by mass;

[0100] Zinc oxide ZnO: 2.0 parts by mass;

[0101] Stearic acid St: 0.5 parts by mass;

[0102] Zinc stearate ZnSt: 0.8 parts by mass;

[0103] Cross-linking auxiliary agent: 0.17 parts by mass;

[0104] Crosslinking agent: 1.0 parts by mass;

[0105] Foaming agent: 3.0 parts by mass;

[0106] Titanium dioxide: 2.5 parts by mass.

[0107] Among them, the ethylene-vinyl acetate copolymer models are 265 and 40L, the mass ratio is 2:1, produced by DuPont; the thermoplastic elastomer is made ...

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Abstract

The invention provides a rubber-plastic compound foaming material, and a preparation method and application thereof. The material is prepared by mixing and foaming raw materials, wherein the raw materials comprise 35-50 parts by mass of EVA (ethylene-vinyl acetate), 15-35 parts by mass of thermoplastic elastomer, 10-20 parts by mass of ethylene propylene diene monomer rubber, 10-20 parts by mass of polyolefin block copolymer, 5-15 parts by mass of anti-wear agent, 4-6 parts by mass of filler, 2-5 parts by mass of activator, 0.7-1.2 parts by mass of crosslinking agent, 2.5-3.5 parts by mass of foaming agent and 0-10 parts by mass of additive; the thermoplastic elastomer is prepared by performing melt blending on polyurethane elastomer, cis-1,4-polybutadiene rubber and modification substances; and the modification substances comprise styrene elastomer and / or polyolefin elastomer. Under the combined action of the above components, the material is soft and comfortable, has excellent cushioning and resilience properties, excellent abrasion resistance and favorable recoverability, and can satisfy the performance requirements of sports shoe soles.

Description

technical field [0001] The present application relates to the technical field of rubber composite materials, in particular to a rubber-plastic composite foam material and its preparation method and application. Background technique [0002] With the rapid development of the sports shoes market, people have higher and higher requirements on the wearing experience and appearance of parts such as soles. Consumers usually require shoes not only to be light and comfortable to wear, but also to have a cool and fashionable appearance, so the performance requirements for sole materials are also getting higher and higher. Among them, softness, comfort and lightweight are the main development trends. [0003] The wear-resistant EVA (ethylene-vinyl acetate copolymer) foam material is used to replace part of the rubber and directly used as the outsole of sports shoes, which can effectively meet the above-mentioned lightweight and wear-resistant requirements. However, this kind of sole...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L75/04C08L9/00C08L23/16C08L53/00C08K13/02C08K3/34C08K3/26C08K3/36C08K3/04C08K5/09C08K5/098C08K5/14C08J9/10A43B13/04
CPCA43B13/04C08J9/103C08J2203/04C08J2323/08C08L23/0853C08L2203/14C08L2205/035C08L2207/04C08L75/04C08L9/00C08L23/16C08L53/00C08K13/02C08K3/34C08K2003/265C08K3/36C08K3/04C08K5/09C08K5/098C08K5/14
Inventor 杨帅奇刘超陈绍猛林明夏
Owner ANTA CHINA
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