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Thermally induced memory foam insole material and preparation method thereof

A foamed sheet and memory technology, applied in the field of shoe manufacturing, can solve the problems of inability to use foamed materials, cumbersome process steps, harsh foaming conditions, etc., and achieve excellent resilience and cushioning performance, simple process steps, The effect of broad market prospects

Active Publication Date: 2021-02-05
ANTA CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation method of this patent has cumbersome process steps, high manufacturing cost, and the foaming conditions corresponding to supercritical physical foaming are relatively harsh, requiring strict control of process conditions, and the preparation is open-cell PVDF and PLA, which have poor elasticity and mechanical properties. Poor, cannot be used as a foam material for sports shoe soles

Method used

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  • Thermally induced memory foam insole material and preparation method thereof
  • Thermally induced memory foam insole material and preparation method thereof
  • Thermally induced memory foam insole material and preparation method thereof

Examples

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preparation example Construction

[0066] The present invention also provides a method for preparing the thermal memory foam insole material described in the above technical solution, comprising the following steps:

[0067] a) Densify trans-1,4-polyisoprene rubber, EVA, POE, SEBS, talc, peroxide cross-linking agent, foaming agent, zinc oxide, stearic acid and zinc stearate Refining to obtain mixture A;

[0068] b) After kneading the mixed material A obtained in step a), hot-pressing and foaming are carried out to obtain a foamed sheet;

[0069] c) The foamed sheet obtained in step b) is sequentially sliced, cloth-covered and cut to obtain a heat-induced memory foamed insole material.

[0070] The present invention first carries out trans-1,4-polyisoprene rubber, EVA, POE, SEBS, talcum powder, peroxide crosslinking agent, foaming agent, zinc oxide, stearic acid and zinc stearate Banbury mixing, obtain compound A. In the present invention, the trans-1,4-polyisoprene rubber, EVA, POE, SEBS, talcum powder, pero...

Embodiment 1～8 and comparative example 1～8

[0095] (1) Formula composition:

[0096] See Tables 1-2, wherein, Table 1 is the formula composition of the thermal memory foam insole material provided in Examples 1-8, and Table 2 is the formula composition of the foam insole material provided in Comparative Examples 1-8.

[0097] The formula composition of the heat-induced memory foam insole material that table 1 embodiment 1~8 provides

[0098]

[0099] The formula composition of the foamed insole material that table 2 comparative example 1~8 provides

[0100]

[0101]

[0102] in:

[0103] EVA 7350M: VA molar content is 18%, hardness is 88A, melting point is 84°C, softening temperature is 49°C, crystallinity is 36.5%, Formosa Plastics Corporation.

[0104] EVA 7470M: VA molar content is 26%, hardness is 82A, melting point is 76°C, softening temperature is 43°C, crystallinity is 24.8%, Formosa Plastics Corporation.

[0105] EVA 33121: VA molar content 33%, hardness 65A, melting point 67°C, softening temperature...

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Abstract

The invention provides a thermally induced memory foam insole material. The material is prepared from the following raw materials in parts by weight: 10 to 40 parts of trans-1, 4-polyisoprene rubber,30 to 50 parts of EVA, 10 to 20 parts of POE, 10 to 20 parts of SEBS, 4 to 6 parts of talcum powder, 0.4 to 0.5 part of a peroxide cross-linking agent, 2 to 3 parts of a foaming agent, 1 to 2 parts ofzinc oxide, 0.4 to 0.6 part of stearic acid, and 0.4 to 0.6 part of zinc stearate. The thermally induced memory foam insole material provided by the invention adopts specific content components to realize better interaction, and the prepared thermally induced memory foam insole material can be easily, conveniently and quickly deformed, the deformation rate is adjustable, and the shape fixing rateand the recovery rate are high. Experimental results show that the deformation temperature of the thermally induced memory foam insole material is 50 to 60 DEG C, the deformation rate at 50 to 60 DEGC is 30 to 60%, the shape fixing rate at room temperature is greater than or equal to 90%, and the shape recovery rate at 70 DEG C is greater than 95%.

Description

technical field [0001] The invention relates to the technical field of shoe manufacture, and more specifically relates to a heat-induced memory foam insole material and a preparation method thereof. Background technique [0002] As far as the moment is concerned, fitness is already a craze, from celebrities to students, from entrepreneurial celebrities to ordinary workers, from old people to young people, it can be said that we are entering an era of national fitness. Under the upsurge of national sports, people's requirements for sports shoes are gradually increasing. Consumers not only need a pair of sports shoes with basic functions, but also desire to have a pair of unique sports shoes that suit them. Therefore, differentiated services demand is increasingly prominent. In terms of shoe differentiation, people pay more attention to the insoles that are in the closest contact with the feet. However, most insoles on the market are of standardized shape. Whether it is a fla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L53/02C08L9/00C08K5/14C08K3/34C08K5/09C08K5/098C08K13/02C08J9/10A43B13/04A43B17/14
CPCC08J9/103A43B17/14C08J2323/08C08J2423/08C08J2453/02C08J2409/00C08J2203/04C08K5/14C08K3/34C08K5/09C08K5/098C08K13/02
Inventor 林鸿飞朱小平李忠德成升良林育贤吴志诚
Owner ANTA CHINA
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