A leather shavings modified rubber outsole and preparation method thereof

A technology for modifying rubber and leather, which is applied to shoe soles, clothing, footwear, etc. It can solve the problems that composite materials cannot be applied to outsoles, and achieve high-value utilization, increase storage time, and reduce environmental pollution.

Active Publication Date: 2022-03-04
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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  • A leather shavings modified rubber outsole and preparation method thereof
  • A leather shavings modified rubber outsole and preparation method thereof
  • A leather shavings modified rubber outsole and preparation method thereof

Examples

Experimental program
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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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Abstract

The invention discloses a leather scrap modified rubber outsole and a preparation method thereof, comprising the following components in parts by weight: 15 parts of solution-polymerized styrene-butadiene rubber, 8-12 parts of natural rubber, 15-30 parts of butadiene rubber, mixing Type polyurethane elastomer 8‑15 parts, leather shavings grafted polybutadiene 10‑40 parts, glass microspheres 4‑12 parts, naphthenic oil 5‑8 parts, white carbon black 15 parts, dispersant AT‑B 2.0 0.6 parts of anti-aging agent RD, 1.2 parts of polyethylene glycol PEG4000, 0.6 parts of diethylene glycol, 0.15 parts of polyethylene wax, 2.6 parts of yellow resin C9, 1.2 parts of zinc oxide, 0.6 parts of stearic acid, silane coupling agent Si ‑69 0.5 parts, insoluble sulfur 1.2 parts, vulcanization accelerator 1.8 parts; the invention realizes a rubber modified outsole with excellent performance on the basis of fully utilizing leather waste.

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 Patents(China)
IPC IPC(8): C08L87/00C08L9/06C08L7/00C08L9/00C08L75/08C08L91/00C08L71/02C08L23/06C08L57/02C08K13/06C08K9/06C08K7/28C08K5/06C08K3/22C08K5/09C08K3/06C08K5/548C08G81/02A43B13/04A43B13/06
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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