Camouflage EVA (Ethylene Vinyl Acetate) long running shoe insole and preparation method thereof

A long-distance running and camouflage technology, which is applied in soles, footwear, clothing, etc., can solve the problems of poor product stability, closed pores easily become connected pores, poor crystallization performance, etc., to reduce sports injuries, mature production technology, The effect of a small damping factor

Active Publication Date: 2016-03-23
茂泰(福建)新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the crystallinity of ethylene-vinyl acetate rubber is poor, and the closed cells are easy to become joint cells, resulting in partial collapse of the cells. There must be a pr

Method used

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  • Camouflage EVA (Ethylene Vinyl Acetate) long running shoe insole and preparation method thereof
  • Camouflage EVA (Ethylene Vinyl Acetate) long running shoe insole and preparation method thereof
  • Camouflage EVA (Ethylene Vinyl Acetate) long running shoe insole and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In the present embodiment, the midsole of the camouflage EVA long-distance running shoes is composed of the following components by weight:

[0030]

[0031] The preparation method at the end of described camouflage pattern EVA long-distance running shoes, comprises the steps:

[0032] Step 1: First mix the above raw materials (except pigments) for banburying, adjust the banburying temperature to 97°C, keep it for 6 minutes, then turn over the material twice, continue banburying and heat up, the output temperature is 107°C, banburying is over Afterwards, kneading and granulation are carried out to obtain natural color EVA rice;

[0033] Step 2: Stir the natural color EVA material rice and phthalocyanine green 311 in the mixing tank evenly to obtain green material rice; mix the natural color EVA material rice and permanent yellow 1148 in the mixing tank to obtain yellow material rice; Stir the permanent red BH-5RK evenly in the mixing tank to get red rice; then mix t...

Embodiment 2

[0037] In the present embodiment, the preparation method at the end of a kind of camouflage color EVA long-distance running shoes is the same as that in Example 1, except that in the proportioning of raw materials:

[0038] EVA7240M45 parts, ethylene octene copolymer 844030 parts, ethylene octene copolymer 848015 parts, talcum powder 8 parts, permanent violet HR-2560.2 parts, phthalocyanine blue 1560.2 parts, permanent orange TR1390.2 parts.

[0039] The camouflage color EVA long-distance running shoes mid-sole that above-mentioned preparation obtains, density 0.175g / cm 3 , hardness 59, dimensional shrinkage 0.2%, rebound rate 34%, compression deformation rate 54%, tear strength 10.1N / mm, tensile strength 2.8MPa, Tanδ peak value is 0.155, and the corresponding frequency of Tanδ peak value is 2.51Hz.

Embodiment 3

[0041] In the present embodiment, the preparation method at the end of a kind of camouflage color EVA long-distance running shoes is the same as that in Example 1, except that in the proportioning of raw materials:

[0042] 35 parts of EVAV4110J, 20 parts of EVA55020 parts, 845235 parts of ethylene octene copolymer, 1.8 parts of crosslinking agent BIBP, 1.8 parts of zinc stearate, 12 parts of talcum powder.

[0043] The camouflage color EVA long-distance running shoes midsole that above-mentioned preparation obtains, density 0.152g / cm 3 , hardness 49, dimensional shrinkage 1.0%, rebound rate 32%, compression deformation rate 63%, tear strength 6.4N / mm, tensile strength 2.1MPa, Tanδ peak value is 0.169, and the corresponding frequency of Tanδ peak value is 0.79Hz.

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Abstract

The invention relates to the technical field of organic macromolecule compounds and provides a camouflage EVA (Ethylene Vinyl Acetate) long running shoe insole and a preparation method thereof. The sole material is characterized in that along with the increase of motion frequency, a damping factor is first increased and then is reduced, so that an optimal balance point is found for shock absorption buffer and motive force of sport shoes, and maximum energy absorption is achieved; the sole material is particularly suitable for being used as the insole material of the long running shoe; the camouflage EVA long running shoe insole is prepared by the following steps of firstly, performing internal mixing, mill mixing and granulating on raw materials such as the EVA, an ethylene-octylene copolymer, a foaming agent, a cross-linking agent, zinc stearate, zinc oxide, stearic acid and talcum powder to obtain natural color EVA stock; stirring the EVA stock and pigment to obtain stocks with different colors; secondly, stirring the stocks with the different colors to obtain multi-color mixed stock; finally, performing heating and foaming and secondary oil pressure molding to obtain a final product.

Description

technical field [0001] The invention belongs to the technical field of organic polymer compounds, in particular to a midsole of camouflage EVA long-distance running shoes and a preparation method thereof. Background technique [0002] The existence of the porous structure endows the foamed material with excellent energy absorption performance, enabling it to be used in many aspects of production and life. When subjected to external impact or compression load, the foamed material can absorb part of the energy through its own deformation. Generally speaking, the composition of the material plays a decisive role in the quality of its damping performance, but in different use environments such as temperature, frequency and amplitude, as well as the density of the foam material itself, the impact on the damping performance of the material cannot be ignored. . Related studies (PolymerTesting, 2001(20): 287-193; Synthetic Rubber Industry, 38(2), 126-131) have shown that foamed mat...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K13/02C08K5/098C08K5/09C08K3/22C08K3/34C08J9/10A43B13/04
CPCA43B13/04C08J9/103C08J2323/08C08J2423/08C08L23/0853C08L2203/14C08L2205/02C08L2205/025C08L2205/03C08L2205/035C08L23/0815C08K13/02C08K5/098C08K5/09C08K2003/2296C08K3/34
Inventor 卢鑫丁思博罗显发廖毅彬郭彩莲王育玲周小兰林江金校红郑荣大
Owner 茂泰(福建)新材料科技有限公司
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