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High-wear-resistance EVA (Ethylene Vinyl Acetate) foaming material for shoes and preparation method thereof

A technology for foaming materials and shoes, which is applied in the field of foaming materials for shoes, can solve the problems of wear resistance and compression resistance that need to be improved, and achieve the effects of improving compatibility, good wear resistance and good mechanical properties.

Active Publication Date: 2022-01-04
ANTA CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its comprehensive properties such as wear resistance and compression resistance still need to be improved.

Method used

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  • High-wear-resistance EVA (Ethylene Vinyl Acetate) foaming material for shoes and preparation method thereof
  • High-wear-resistance EVA (Ethylene Vinyl Acetate) foaming material for shoes and preparation method thereof
  • High-wear-resistance EVA (Ethylene Vinyl Acetate) foaming material for shoes and preparation method thereof

Examples

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preparation example Construction

[0047] The embodiment of the present invention provides the preparation method of EVA foam material for shoes as described above, comprising the following steps:

[0048] S1, mixing all raw materials except bridging agent and blowing agent in each raw material weighed;

[0049] S2, adding the bridging agent and foaming agent to the material mixed in step S1 and then mixing;

[0050] S3, granulating the mixture obtained in step S2, and placing it for cooling;

[0051] S4. The particles cooled in step S3 are subjected to an IP primary molding process or an MD secondary molding process to obtain a highly wear-resistant EVA foam material for shoes.

[0052] Specifically, the preparation method of the EVA foam material for shoes with high wear resistance and pressure change resistance described in the embodiments of the present invention comprises the following steps:

[0053] Step 1: weigh each raw material according to the mass parts of each component in the composition for pre...

Embodiment 1

[0066] A super-comfortable EVA foam material with high wear resistance and pressure change resistance, comprising the following raw materials in parts by weight:

[0067] Ethylene-vinyl acetate copolymer: 40 parts;

[0068] Polyolefin thermoplastic elastomer: 30 parts;

[0069] Maleic anhydride grafted polyethylene: 10 parts;

[0070] Wear-resistant agent: 10 parts;

[0071] Stearic acid: 0.5 parts;

[0072] Zinc stearate: 1 part;

[0073] Zinc oxide: 1.5 parts;

[0074] Talc powder: 4 parts;

[0075] Bridging agent: 0.8 parts;

[0076] Foaming agent: 2.5 parts;

[0077] Wherein, the model of ethylene-vinyl acetate copolymer is EVA7470M, produced by Formosa Plastics Corporation of Taiwan; the model of polyolefin block copolymer is infuse9507, produced by Dow Company; the maleic anhydride grafted polyethylene is E588, produced by DuPont; the wear-resistant agent is a composite material of polytetrafluoroethylene / styrene-butadiene rubber prepared by the emulsion method;...

Embodiment 2

[0090] A super-comfortable EVA foam material with high wear resistance and pressure change resistance, comprising the following raw materials in parts by weight:

[0091] Ethylene-vinyl acetate copolymer: 40 parts;

[0092] Polyolefin thermoplastic elastomer: 30 parts;

[0093] Maleic anhydride grafted polyethylene: 10 parts;

[0094] Wear-resistant agent: 15 parts;

[0095] Stearic acid: 0.5 parts;

[0096] Zinc stearate: 1 part;

[0097] Zinc oxide: 1.6 parts;

[0098] Talc powder: 4 parts;

[0099] Bridging agent: 1.2 parts;

[0100] Foaming agent: 3.2 parts;

[0101] Among them, the model of ethylene-vinyl acetate copolymer is EVA7470M and EVA40W, and its mass ratio is 2:1. EVA7470M is produced by Taiwan Formosa Plastics Company, and EVA40W is produced by DuPont Company; the model of polyolefin block copolymer is infuse9107, manufactured by Dow Company Production; maleic anhydride grafted polyethylene as E588, produced by DuPont; the wear-resistant agent is a com...

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Abstract

The invention belongs to the technical field of foaming materials for shoes, and discloses a high-wear-resistance EVA foaming material for shoes and a preparation method thereof. The foaming material is prepared from formula materials through mixing and foaming, and comprises, by weight, 40-60 parts of ethylene-vinyl acetate copolymer; 20-30 parts of polyolefin elastomer; 5-10 parts of maleic anhydride graft; 10-15 parts of a wear-resistant agent which is a composite solid material of polytetrafluoroethylene and butadiene styrene rubber; 0.2-1 part of stearic acid; 0.2-1 part of zinc stearate; 0.3-2 parts of zinc oxide; 2-5 parts of talcum powder; 0.3-1.5 parts of a bridging agent; and 1.5-5 parts of a foaming agent. The wear resistance, compressive deformation resistance, resilience and softness of the EVA foaming material are improved without affecting the non-slip performance of the foaming material, and the EVA foaming material has important practical significance for expanding ground-touching EVA foaming soles.

Description

technical field [0001] The present application relates to the technical field of foaming materials for shoes, in particular to a highly wear-resistant EVA foaming material for shoes and a preparation method thereof. Background technique [0002] With the improvement of living standards and the continuous popularization of sports exercises, people have higher and higher requirements for the comfort of shoes, and at the same time higher requirements for their functionality have also been put forward. EVA foam soles are constantly improving in the direction of lightness, softness, elasticity and compression resistance, but their comprehensive performance is usually difficult to have at the same time. Abrasion resistance is often difficult to meet standards. In order to pursue comfort in the market, the hardness of the sole material is generally made very low, but it is ignored that if the sole is too soft, it will easily cause ankle sprains, and standing for too long will easi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L27/18C08L9/06C08L51/06C08L53/00C08K5/09C08K5/098C08K3/22C08K3/34C08J9/10A43B13/04
CPCC08J9/103C08J9/0061C08J9/0095C08J9/0066C08J9/0023A43B13/04C08J2203/04C08J2323/08C08J2427/18C08J2409/06C08J2451/06C08J2353/00C08J2453/00C08J2423/08Y02P70/62
Inventor 党明江秦培新贺金林吴志诚罗小傅梁志新王瑞龙
Owner ANTA CHINA
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