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Anti-tear EVA (ethylene-vinyl acetate copolymer) foaming shoe material and preparation method thereof

A manufacturing method and tear-resistant technology, applied in the field of leisure shoe soles, can solve the problems of increased design space, easy breakage, poor tear resistance, etc., and achieve the effects of increased design space, wearing safety, and excellent physical properties

Active Publication Date: 2013-07-10
泉州泰亚鞋业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a shoe material that not only has all the excellent physical properties of traditional EVA foam, but also overcomes the congenital deficiencies of poor tear resistance and easy breakage of EVA foam shoes, so that consumers can wear them more safely and comfortably. All kinds of leather and cloth are processed by needle car, which increases the design space of all kinds of shoes, and the tear-resistant EVA foam shoe material with high tear strength and its manufacturing method

Method used

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  • Anti-tear EVA (ethylene-vinyl acetate copolymer) foaming shoe material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: The preparation method of the tear-resistant EVA foam shoe material of the present invention comprises the following steps.

[0047] 1. The composition of raw materials by mass percentage is as follows:

[0048] Ethylene-vinyl acetate copolymer ELVAX260: 60%;

[0049] Ethylene-octene copolymer POE8842: 20%;

[0050] Hydrogenated styrene-butadiene-styrene block copolymer SEBS: 6%;

[0051] Ethylene-acrylic acid copolymer N493: 1.0%;

[0052] Talc powder: 6%;

[0053] Stearic acid: 0.4%;

[0054] Zinc stearate: 0.8%;

[0055] Zinc oxide: 1.0%;

[0056] Dicumyl peroxide: 0.8%;

[0057] Azodicarbonamide: 2.0%;

[0058] Masterbatch: 2.0%.

[0059] 2. the manufacture method of described tear-resistant EVA foam shoe material is characterized in that comprising the following steps:

[0060] 1) Pound material

[0061] Weigh the raw materials according to the designed formula, after weighing the dicumyl peroxide and azo blowing agent separately, mix the t...

Embodiment 2

[0074] Embodiment 2: adjust the consumption of ELVAX260, POE8842, SEBS, N493 on the basis of embodiment 1, its raw material formula is as follows:

[0075] Ethylene-vinyl acetate copolymer ELVAX260: 55%;

[0076] Ethylene-octene copolymer POE8842: 25%;

[0077] Hydrogenated styrene-butadiene-styrene block copolymer SEBS: 5%;

[0078] Ethylene-acrylic acid copolymer N493: 1.5%;

[0079] Talc powder: 7%;

[0080] Stearic acid: 0.3%;

[0081] Zinc stearate: 0.5%;

[0082] Zinc oxide: 0.9%;

[0083] Dicumyl peroxide: 0.8%;

[0084] Azodicarbonamide: 2.0%;

[0085] Masterbatch: 2.0%.

Embodiment 3

[0086] Embodiment 3: On the basis of embodiment 2, continue to adjust the consumption of ELVAX260, POE8842, SEBS, N493, make it be controlled in the setting dosage range, its raw material formula is as follows:

[0087] Ethylene-vinyl acetate copolymer ELVAX260: 65%;

[0088] Ethylene-octene copolymer POE8842: 13%;

[0089] Hydrogenated styrene-butadiene-styrene block copolymer SEBS: 10%;

[0090] Ethylene-acrylic acid copolymer N493: 0.8%;

[0091] Talc powder: 5%;

[0092] Stearic acid: 0.4%;

[0093] Zinc stearate: 0.8%;

[0094] Zinc oxide: 1.0%;

[0095] Dicumyl peroxide: 0.8%;

[0096] Azodicarbonamide: 2.0%;

[0097] Masterbatch: 2.0%.

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Abstract

The invention provides an anti-tear EVA (ethylene-vinyl acetate copolymer) foaming shoe material and a preparation method thereof, belonging to a casual shoe sole. The anti-tear EVA foaming shoe material comprises the following raw materials: EVA, ethylene-octene copolymer, hydrogenated styrene-butadiene-styrene block copolymer, ethylene-acrylic acid copolymer, talcum powder, stearic acid, zinc stearate, zinc oxide, dicumyl peroxide, azobisformamide and color masterbatch. The preparation method comprises the following steps of: mixing dicumyl peroxide with the azo foaming agent for later use, mixing the rest raw materials, then pouring the mixture into an internal mixer to carry out first-stage internal mixing and then adding the mixture of dicumyl peroxide and the azo foaming agent to carry out second-stage internal mixing to obtain an internally mixed mixture; thinning the obtained internally mixed mixture on a roller machine; transferring the material uniformly mixed by the roller machine to a granulator to be granulated; mixing the granules after granulation according to a set multiplying power and injecting the mixture into a shoe mold via an injection molding machine to be molded; and sizing the molded sole into a foaming profile finished product via a thermostat.

Description

technical field [0001] The invention relates to a leisure shoe sole, in particular to a tear-resistant EVA foam shoe material and a manufacturing method thereof. Background technique [0002] EVA foam shoes are light, soft and comfortable shoes made of EVA as the main material and obtained through a specific molding process. [0003] China is a major producer of footwear. With the progress of the times, people's quality of life has improved, consumption and life concepts have changed, and the pursuit of comfort, fashion, and convenience is the direction of footwear development. EVA foam shoe material has been popular in the development of shoe materials for 15-20 years. Its lightness, comfort and durability are unmatched by other shoe materials. All kinds of casual shoes, sandals, slippers, etc. are produced by direct foaming of EVA. is well loved by consumers. Tear-resistant EVA foam casual shoe material is a new type of EVA foam shoe material developed by shoe material d...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L53/02C08K13/02C08K3/34C08K3/22C08K5/09C08K5/098C08J9/10A43B13/04
Inventor 陈永华吴孝义林松柏
Owner 泉州泰亚鞋业有限公司
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