Antistatic EVA (Ethylene Vinyl Acetate) shoe sole and preparation method thereof

An antistatic and antistatic agent technology, applied in the field of organic polymer compounds, can solve the problems of weakening the mechanical properties of matrix materials, failing to meet color requirements, and poor dispersion, so as to improve visual aesthetics, reduce visual aesthetic fatigue, Feel good effect

Active Publication Date: 2015-03-11
MAOTAI FUJIAN SOLES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Patent CN 103450545 A has reported that in the EVA shoe sole, the alkylphenol polyoxyethylene ether liquid antistatic agent with poor biodegradability is added, and the EVA shoe sole made has the characteristics of low resistivity, light weight, and low price, but it is not environmentally friendly. and regions have restricted their use
Patent CN 1039101024 A discloses a permanent antistatic EVA material, which can maintain very high stability in low temperature and high temperature environments, and is not prone to aging. Its antistatic performance depends on conductive carbon black, and the carbon black structure is susceptible to The shear force damage during processing and poor dispersion in the matrix will significantly weaken the mechanical properties of the matrix material. More importantly, adding conductive carbon black can only produce black products, and the product is single, which cannot meet people's color needs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In the present embodiment, the antistatic EVA sole is made up of following components by weight:

[0045] EVA 5110 25 parts

[0046] EVA 7470 35 parts

[0047] Thermoplastic Elastomer 1175 16 parts

[0048] Polyamide copolymer 15 parts

[0049] Foaming agent AC 2.5 parts

[0050] Microcapsule foaming agent 2.5 parts

[0051] Cross-linking agent DCP 1.6 - 1.7 parts

[0052] Polyether-polyamide copolymer antistatic agent 4 parts

[0053] Ionomer antistatic agent 3 parts

[0054] Nano Zinc Oxide 1.8 parts

[0055] Zinc stearate 2.0 parts

[0056] Stearic acid 1.3 parts

[0057] Anti-wear agent NM-2 1.6 parts

[0058] Talcum powder 4 parts.

[0059]Step 1: Mix other raw materials except the cross-linking agent and foaming agent for banburying, adjust the banburying temperature to 100°C, keep it for 5 minutes, then add the cross-linking agent and foaming agent, and continue banburying to raise the temperature. The discharge temperature is 110°C, and after the ban...

Embodiment 2

[0063] In the present embodiment, a kind of preparation method of antistatic EVA sole is identical with the preparation method in embodiment 1, difference is:

[0064] 45 parts of EVA 5110, 15 parts of EVA 7470, 20 parts of thermoplastic elastomer 1175, 5 parts of polyether-polyamide copolymer antistatic agent, 5 parts of ionomer antistatic agent, and 1 part of wear-resistant agent NM-2;

[0065] The banburying temperature in step 1 is 98 degrees, and the discharge temperature is 108 degrees.

[0066] The antistatic EVA sole that above-mentioned preparation obtains, density 0.24g / cm 3 , Shore hardness 56, DIN wear resistance 145 mm 3 , dimensional shrinkage 1.1%, rebound rate 56%, tensile strength 3.4MPa, elongation 379%, 180 degree tear strength 8.0N / mm, dynamic anti-slip coefficient smooth dry 0.59 wet 0.45, static anti-slip coefficient dry 0.57 wet 0.41, resistivity 0.14MΩ.

Embodiment 3

[0068] In the present embodiment, a kind of preparation method of antistatic EVA sole is identical with the preparation method in embodiment 1, difference is:

[0069] EVA E153F 35 parts, EVA E265F 25 parts, polyamide copolymer 10 parts, foaming agent AC 3 parts, microcapsule foaming agent 3 parts, crosslinking agent BIBP 1.7 parts, polyether-polyamide copolymer antistatic agent 2 8 parts of ionomer antistatic agent, 1 part of anti-wear agent FY-5082E.

[0070] The antistatic EVA sole that above-mentioned preparation obtains, density 0.21g / cm 3 , Shore hardness 59, DIN wear resistance 253 mm 3 , dimensional shrinkage 1.0%, rebound rate 52%, tensile strength 3.6MPa, elongation 381%, 180 degree tear strength 5.8N / mm, dynamic anti-slip coefficient smooth dry type 0.58 wet type 0.49, static anti-slip coefficient dry type 0.53 wet 0.44, resistivity 0.63MΩ.

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Abstract

The invention relates to the technical field of organic high-molecular compounds, and provides an antistatic EVA (Ethylene Vinyl Acetate) shoe sole and a preparation method thereof. Antistatic EVA particles are prepared from raw material EVA, a thermoplastic elastomer, a polyamide copolymer, a foaming agent, a cross-linking agent, an antistatic agent, nano-zinc oxide, zinc stearate, stearic acid, an anti-wear agent and talcum powder through smelting, open milling and pelleting, and then the antistatic EVA shoe sole is prepared from the antistatic EVA particles through temperature rise foaming and secondary oil pressure forming. The electrical resistivity of the antistatic EVA shoe sole is smaller than 1 megohm, and the antistatic EVA shoe sole can be permanently antistatic and is not influenced by a damp environment; moreover, the antistatic EVA shoe sole has the characteristics of light weight, good hand feeling, high dimensional stability, good comprehensive mechanical property and the like, is particularly suitable for being used in places with high antistatic requirement such as manufacturing shops and high-grade test rooms in the microelectronics industry, and is light, comfortable and long in service life.

Description

technical field [0001] The invention belongs to the technical field of organic polymer compounds, in particular to an antistatic EVA shoe sole and a preparation method thereof. Background technique [0002] Polymer materials are insulating, and it is easy to form charge migration during friction, resulting in static electricity, which is very harmful, especially in the production workshops and advanced laboratories of the microelectronics industry, must wear clothing that can eliminate static electricity from the human body. Anti-static shoes. Antistatic EVA shoes, which are light, comfortable, highly elastic, non-deformable, and stable in antistatic performance, are gradually recognized by people. [0003] Patent CN 103450545 A has reported that in the EVA shoe sole, the alkylphenol polyoxyethylene ether liquid antistatic agent with poor biodegradability is added, and the EVA shoe sole made has the characteristics of low resistivity, light weight, and low price, but it is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L77/00C08L71/02C08K13/02C08K3/22C08K5/098C08K5/09C08K3/34C08J9/04A43B13/04
CPCA43B13/04C08J9/103C08J2203/04C08J2323/08C08J2423/08C08J2471/00C08J2471/02C08J2477/00C08L23/0853C08L2201/04C08L2205/035C08L77/00C08L71/00C08L101/00C08K13/02C08K5/14C08K2003/2296C08K5/098C08K5/09C08K3/34C08L71/02
Inventor 卢鑫丁思博罗显发张文飞郭彩莲廖毅彬林荷香林江金校红
Owner MAOTAI FUJIAN SOLES CO LTD
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