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Composite sole combined by natural rubber and EVA and preparation process thereof

A technology of composite sole and preparation process, applied in soles, footwear, footwear and other directions, can solve the problems of unable to meet the needs of daily training, poor tear strength, unable to meet the requirements of softness and lightness, etc., to meet the needs of high-intensity training Requires and maintains the effect of high elasticity and high tear strength

Active Publication Date: 2015-07-22
NANJING DONGYA RUBBER & PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And in the existing sole material, although rubber material has high elasticity and strong wear resistance, it cannot meet the requirements of softness and lightness, while EVA material (i.e. ethylene-vinyl acetate copolymer) has lower cost and less application. Very wide, but the tear strength is relatively poor, can not meet the needs of daily training

Method used

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  • Composite sole combined by natural rubber and EVA and preparation process thereof
  • Composite sole combined by natural rubber and EVA and preparation process thereof
  • Composite sole combined by natural rubber and EVA and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: the compound sole of a kind of natural rubber and EVA combination, comprise rubber outsole and EVA middle end, described rubber outsole comprises following component:

[0036]

[0037] The EVA midsole includes the following components:

[0038]

[0039]

[0040] The preparation technology of the composite sole of this natural rubber and EVA combination, comprises the steps:

[0041] (1) Preparation of EVA midsole:

[0042] a. Put EVA5110, EVA6110, elastomer, filler and flax fiber into the internal mixer and knead for 2 minutes. When the temperature is 80°C, add zinc oxide powder, zinc stearate, titanium dioxide, dispersant and flow agent, and continue Mix for 5 minutes, when the temperature is 105°C, add foaming agent and bridging agent and mix for 7 minutes;

[0043] b. After the internal mixing is completed, put the material on the open mill, the temperature of the open mill is 80°C, 15m / m thin pass twice, and 1m / m thin pass again;

[0044] c...

Embodiment 2

[0057] Embodiment 2: a kind of composite sole of natural rubber and EVA combination, comprise rubber outsole and EVA middle end, described rubber outsole comprises following component:

[0058]

[0059] The EVA midsole includes the following components:

[0060]

[0061] The preparation technology of the composite sole of this natural rubber and EVA combination, comprises the steps:

[0062] (1) Preparation of EVA midsole:

[0063] a. Put EVA5110, EVA6110, elastomer, filler and flax fiber into the internal mixer and knead for 4 minutes. When the temperature is 100°C, add zinc oxide powder, zinc stearate, titanium dioxide, dispersant and flow agent, and continue Mix for 7 minutes, when the temperature is 115°C, add foaming agent and bridging agent and mix for 9 minutes;

[0064] b. After the internal mixing is completed, put the material on the open mill, the temperature of the open mill is 90°C, 15m / m thin pass twice, and 1m / m thin pass again;

[0065] c. Put the refi...

Embodiment 3

[0078] Embodiment 3: a kind of compound sole of natural rubber and EVA combination, comprise rubber outsole and EVA middle end, described rubber outsole comprises following component:

[0079]

[0080] The EVA midsole includes the following components:

[0081]

[0082] The preparation technology of the composite sole of this natural rubber and EVA combination, comprises the steps:

[0083] (1) Preparation of EVA midsole:

[0084] a. Put EVA5110, EVA6110, elastomer, filler and flax fiber into the internal mixer and knead for 3 minutes. When the temperature is 90°C, add zinc oxide powder, zinc stearate, titanium dioxide, dispersant and flow agent, and continue Mix for 6 minutes, when the temperature is 110°C, add foaming agent and bridging agent and mix for 8 minutes;

[0085] b. After the internal mixing is completed, put the material on the open mill, the temperature of the open mill is 85°C, 15m / m thin pass twice, and 1m / m thin pass again;

[0086] c. Put the refine...

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PUM

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Abstract

The invention discloses a composite sole combined by natural rubber and EVA; a rubber outsole comprises the following components in parts by weight: 50 parts of natural rubber, 30 parts of cis-1,4-polybutadiene rubber, 20 parts of butadiene-acrylonitrile rubber, 45 parts of white carbon black, 15 parts of white oil, 10 parts of a black color masterbatch, 5 parts of zinc oxide, 2 parts of stearic acid, 2.5 parts of an accelerant, 2 parts of an anti-aging agent, 1 part of an antioxidant, 2 parts of a dispersant, and 4 parts of a wear-resisting agent. An EVA midsole comprises the following components in parts by weight: 35 parts of EVA5110, 25 parts of EVA6110, 20 parts of an elastomer, 10 parts of a filler, 10 parts of a flax fiber, 3 parts of a foaming agent, 0.6 part of a bridging agent, 1 part of a zinc-oxide powder, 0.5 part of zinc stearate, 2 parts of titanium dioxide, 0.8 part of a dispersing agent, and 0.6 part of a flowing agent. The sole not only has quite high tearing strength, but also is soft, portable and comfortable and keeps high elasticity when the sloe is worn.

Description

technical field [0001] The invention relates to the field of shoe sole materials, in particular to the field of rubber shoe sole materials. Background technique [0002] In order to meet the high-intensity training needs of special people, the requirements for the soles of training shoes are very high. Not only the soles are required to have very high tear strength, but also they need to be soft, light, comfortable and maintain high elasticity when worn. And in the existing sole material, although rubber material has high elasticity and strong wear resistance, it cannot meet the requirements of softness and lightness, while EVA material (i.e. ethylene-vinyl acetate copolymer) has lower cost and less application. Very wide, but the tear strength is relatively poor, which cannot meet the needs of daily training. Contents of the invention [0003] Purpose of the invention: The purpose of the present invention is to address the deficiencies of the prior art, to provide a comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L9/02C08L23/08C08L97/02C08L91/06C08K13/02C08K3/36C08K3/22C08K5/09C08K5/098C08K3/04C08K3/34A43B13/04B29B7/28B29B7/72B29C44/60B29C43/58B29C35/02B29C69/00
CPCA43B13/04B29C69/00B29D35/0054B29D35/122C08L7/00C08L23/0853C08L2205/02C08L2205/025C08L2205/03C08L2205/035C08L9/00C08L9/02C08L91/00C08K13/02C08K3/36C08K2003/2296C08K5/09C08L97/02C08K5/098C08K2003/2241
Inventor 葛胜超
Owner NANJING DONGYA RUBBER & PLASTICS
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