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EVA shoe sole and preparation process thereof

A low-density polyethylene and jute fiber technology is applied in the field of EVA soles and their preparation technology, which can solve the problems of poor crack resistance, affecting the quality of shoes, easy cracking of EVA soles, etc., and achieves the effect of improving bending toughness and improving crack resistance.

Pending Publication Date: 2020-05-15
FUJIAN JOYYOU SPORTS GOODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the existing soles made of EVA materials have the above advantages, their crack resistance is poor. After consumers wear them for a certain period of time, the EVA soles are prone to cracking, which seriously affects the quality of shoes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1, is a kind of EVA sole disclosed by the present invention and preparation technology thereof, EVA sole comprises the component of following parts by weight: 60 parts of EVA, 25 parts of jute fiber / acrylonitrile-butadiene rubber / low-density polyethylene compound, filler 15 parts, 12 parts of magnesium hydroxide, 6.5 parts of masterbatch, 3 parts of AC blowing agent, 0.6 parts of BIPB, 0.3 parts of zinc oxide, 0.55 parts of stearic acid, 0.4 parts of N,N'-ethylenebisstearamide part and 0.15 part of triallyl isocyanurate;

[0041] The filler is rice husk ash and calcium carbonate powder with a mass fraction ratio of 1:1.6;

[0042] The preparation method of jute fiber / acrylonitrile-butadiene rubber / low-density polyethylene compound is:

[0043] A1. Jute fiber pretreatment: first use 2% Na 2 CO 3 After the jute fiber is treated with the solution, the jute fiber is dried, then the jute fiber is irradiated under an ultraviolet lamp for 30 minutes, and finally ...

Embodiment 2

[0054] Embodiment 2, is a kind of EVA sole disclosed by the present invention and preparation process thereof, EVA sole comprises the component of following parts by weight: EVA 50 parts, jute fiber / acrylonitrile-butadiene rubber / low-density polyethylene compound 20 parts, filler 10 parts, 10 parts of magnesium hydroxide, 5 parts of masterbatch, 2 parts of AC blowing agent, 0.4 parts of BIPB, 0.2 parts of zinc oxide, 0.5 parts of stearic acid, 0.3 parts of N,N'-ethylenebisstearamide part and 0.1 part of triallyl isocyanurate;

[0055] The filler is rice husk ash and calcium carbonate powder with a mass fraction ratio of 1:1.6;

[0056] The preparation method of jute fiber / acrylonitrile-butadiene rubber / low-density polyethylene compound is:

[0057] A1. Jute fiber pretreatment: first use 2% Na 2 CO 3 After the jute fiber is treated with the solution, the jute fiber is dried, then the jute fiber is irradiated under an ultraviolet lamp for 30 minutes, and finally the jute fibe...

Embodiment 3

[0068] Embodiment 3, is a kind of EVA sole disclosed by the present invention and preparation process thereof, EVA sole comprises the component of following parts by weight: EVA 70 parts, jute fiber / acrylonitrile-butadiene rubber / low-density polyethylene compound 30 parts, filler 20 parts, 15 parts of magnesium hydroxide, 8 parts of masterbatch, 4 parts of AC blowing agent, 0.8 parts of BIPB, 0.4 parts of zinc oxide, 0.6 parts of stearic acid, 0.5 parts of N,N'-ethylenebisstearamide part and 0.2 part of triallyl isocyanurate;

[0069] The filler is rice husk ash and calcium carbonate powder with a mass fraction ratio of 1:1.6;

[0070] The preparation method of jute fiber / acrylonitrile-butadiene rubber / low-density polyethylene compound is:

[0071] A1. Jute fiber pretreatment: first use 2% Na 2 CO 3 After the jute fiber is treated with the solution, the jute fiber is dried, then the jute fiber is irradiated under an ultraviolet lamp for 30 minutes, and finally the jute fibe...

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PUM

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Abstract

The invention relates to an EVA shoe sole and a preparation process thereof. The EVA shoe sole comprises the following components in parts by weight: 50-70 parts of EVA, 20-30 parts of modified low-density polyethylene, 10-20 parts of a filler, 10-15 parts of a flame retardant, 5-8 parts of color master batch, 2-4 parts of a foaming agent, 0.4-0.8 part of a bridging agent, 0.2-0.4 part of an accelerant, 0.5-0.6 part of stearic acid, 0.3 to 0.5 part of N,N'-ethylene bisstearamide, and 0.1 to 0.2 part of triallyl isocyanurate, wherein the modified low-density polyethylene is a jute fiber / nitrilerubber / low-density polyethylene compound. The preparation process comprises the steps: S1, banburying; S2, open milling; S3, cooling; S4, slitting; S5, mold pressing; and S6, edge trimming. The produced shoe sole has good anti-cracking performance.

Description

technical field [0001] The invention relates to the technical field of shoe production, in particular to an EVA sole and a preparation process thereof. Background technique [0002] EVA sole refers to the sole made of EVA material, EVA material is ethylene / vinyl acetate copolymer, which is made by copolymerization of ethylene (E) and vinyl acetate (VA). The EVA sole has high resilience and high tensile strength, and also has good shockproof and cushioning properties. It has excellent thermal insulation and cold resistance and low temperature performance, and can withstand severe cold. In addition, EVA soles also have acid and alkali resistance and antibacterial properties. Since EVA is an odorless and non-toxic material, EVA soles have good environmental performance. EVA soles also have good flexibility, can still have good flexibility below 0°C, good transparency and surface gloss, good chemical stability, good aging resistance and ozone resistance. [0003] Though the ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L97/02C08L9/02C08L23/06C08K13/04C08K7/26C08K3/26C08K3/22C08K5/09C08K5/3492C08J9/10
CPCC08J9/103C08J9/0061C08J9/0095C08J9/0066C08J9/0023C08J9/0028C08J2203/04C08J2323/08C08J2497/02C08J2409/02C08J2423/06
Inventor 杨敬平
Owner FUJIAN JOYYOU SPORTS GOODS
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