Preparation method of surface reactive collagen fiber/polyester composite material

A polyester composite material and composite material technology are applied in the field of preparation of surface-reactive collagen fibers/polyester composite materials, which can solve problems such as obstacles to sustainable development of the leather industry, environmental pollution, etc., achieve good economic and social benefits, and solve Pollution problems, the effect of improving stability
CN102443184BInactive Publication Date: 2013-04-10SHAANXI UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI UNIV OF SCI & TECH
Publication Date
2013-04-10
Estimated Expiration
Not applicable Β· inactive patent
Patent Text Reader

Abstract

The invention relates to a preparation method of a surface reactive collagen fiber / polyester composite material. In the preparation method, waste chrome-tanning collagen fiber and polyurethane are selected as raw materials, and a chrome-tanning collagen fiber / polyurethane composite material is prepared by a water induced phase-separation method, so that the environmental pollution problem caused by a large amount of waste chrome-tanning collagen fiber is solved; Cr<3+> in the chrome-tanning collagen fiber / polyurethane composite material is removed by a dechromization method to obtain a chrome-free collagen fiber / polyurethane composite material; and the stability of the collagen fiber is improved by a cross-linking method, so as to finally obtain the collagen fiber / polyurethane composite material with the surface reaction performance. By using the preparation method provided by the invention, a large amount of collagen fiber solid wastes are treated, the pollution problem is solved, and the surface reactive composite material with very wide application is produced; and the preparation method has good economic and social benefits.
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Description

technical field

[0001] The invention relates to the production process of composite materials and the treatment of leather solid waste, in particular to a preparation method of surface-reactive collagen fiber / polyester composite materials. Background technique

[0002] The main raw material of the tanning industry is animal hides. At present, only about 200 kilograms of leather can be produced from 1 ton of salt-wet hides, but more than 600 kilograms of solid waste are produced. As the largest leather production base in the world, my country produces about 1.4 million tons of solid waste every year, and about 30% of these solid wastes contain collagen fibers. Most of the discarded collagen fibers are chromium-containing collagen fibers that are difficult to biodegrade, causing serious pollution to the environment and serious obstacles to the sustainable development of my country's leather industry.

[0003] However, as a natural biopolymer material, collagen fibers not only...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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