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Leather scrap modified rubber outsole and preparation method thereof

A technology for modifying rubber and leather, applied in shoe soles, applications, clothing, etc., can solve the problem that composite materials cannot be applied to outsole, and achieve high-value utilization, reduce production costs, and realize the effect of resource recycling.

Active Publication Date: 2020-12-08
MAOTAI FUJIAN SOLES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application solves the technical problem that the composite material prepared by mixing rubber and leather waste in the prior art cannot be applied to the outsole by providing a leather crumb modified rubber outsole and a preparation method thereof, and realizes a fully Based on the use of leather waste, a rubber-modified outsole with excellent performance was obtained

Method used

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  • Leather scrap modified rubber outsole and preparation method thereof
  • Leather scrap modified rubber outsole and preparation method thereof
  • Leather scrap modified rubber outsole and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation method for leather crumb modified rubber outsole, comprising the steps of:

[0040] Step (1): Preparation of leather shavings grafted polybutadiene

[0041] a) Put the tanned leather scraps and recycled waste leather products into a vacuum drying oven, and dry them in a vacuum at a drying temperature not higher than 90°C to obtain dried leather waste;

[0042] b) crushing and grinding the dried leather waste to obtain leather shavings of 50-600 mesh;

[0043] c) Take maleic anhydride grafted polybutadiene with a grafting rate of not less than 15%, put the maleic anhydride grafted polybutadiene into a torque rheometer, and after it melts, add leather scraps, melt and graft branches, that is, leather shavings grafted polybutadiene.

[0044] Step (2): Weigh 10 parts of natural rubber, 12 parts of mixing polyurethane elastomer (polymerized from polyether polyol, isocyanate and allyl ether), 25 parts of leather shavings grafted polybutadiene according to the ...

Embodiment 2

[0049] A kind of preparation method of leather crumb modified rubber outsole is basically the same as the preparation method in Example 1, the difference is:

[0050]

[0051]

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PUM

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Abstract

The invention discloses a leather scrap modified rubber outsole and a preparation method thereof. The leather scrap modified rubber outsole comprises, by weight, 15 parts of solution polymerized styrene-butadiene rubber, 8-12 parts of natural rubber, 15-30 parts of butadiene rubber, 8-15 parts of a mixed polyurethane elastomer, 10-40 parts of leather scrap grafted polybutadiene, 4-12 parts of glass beads, 5-8 parts of naphthenic oil, 15 parts of white carbon black, 2.0 parts of a dispersing agent ATB, 0.6 part of an anti-aging agent RD, 1.2 parts of polyethylene glycol PEG4000, 0.6 part of diethylene glycol, 0.15 part of polyethylene wax, 2.6 parts of yellow resin C9, 1.2 parts of zinc oxide, 0.6 part of stearic acid, 0.5 part of a silane coupling agent Si-69, 1.2 parts of insoluble sulfurand 1.8 parts of a vulcanization accelerator. The rubber modified outsole with excellent performance is obtained on the basis of fully utilizing leather wastes.

Description

technical field [0001] The invention relates to the field of shoe materials, in particular to a leather scrap modified rubber outsole and a preparation method thereof. Background technique [0002] The tanning process produces a large amount of leather waste, and China alone produces about 1.4 million tons of leather waste every year. A small amount of these wastes can be reused, and most of them are discarded, causing serious pollution to the environment, and also causing a large loss of resources such as collagen and chromium oxide. The main component of waste leather shavings is collagen, which contains various active groups such as carboxyl and amino groups. [0003] There is also a combination of rubber and leather waste in the prior art, specifically, 100 parts of nitrile rubber, 15 parts of leather waste rich in polar groups, 5 parts of ZnO, 0.7 parts of accelerator M, stearic acid 0.5 parts and 3 parts of sulfur were mixed and pressed to prepare a composite materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L87/00C08L9/06C08L7/00C08L9/00C08L75/08C08L91/00C08L71/02C08L23/06C08L57/02C08K13/06C08K9/06C08K7/28C08K5/06C08K3/22C08K5/09C08K3/06C08K5/548C08G81/02A43B13/04A43B13/02
CPCC08L87/005C08G81/02A43B13/04A43B13/026C08L2205/035C08L2201/06C08L2201/08C08K2003/2296C08L9/06C08L7/00C08L9/00C08L75/08C08L91/00C08L71/02C08L23/06C08L57/02C08K13/06C08K9/06C08K7/28C08K5/06C08K3/22C08K5/09C08K3/06C08K5/548
Inventor 卢鑫王育玲罗显发廖毅彬丁思博丁思恩刘显奎林剑坤陈振裕董明生
Owner MAOTAI FUJIAN SOLES CO LTD
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