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Synthesis process of graft copolymerized fiber slurry of collagen and acrylonitrile

A collagen and copolymer fiber technology, which is applied in the field of polymerization of collagen and acrylonitrile, can solve the problems of affecting fiber quality, the effect of using zinc chloride solution on regeneration, complex operating system, etc., so as to reduce the introduction of impurities and facilitate regeneration. The effect of utilizing and reducing environmental pollution

Inactive Publication Date: 2010-06-23
SHANGHAI ZHENGJIA MILKFIBER SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned redox system, no matter which group is selected for initiation, the system will produce a large amount of sulfate anions and cations such as potassium and sodium after the reaction, which will be unfavorable for the regeneration of the zinc chloride solution as a solvent. influences
In industrial production, the zinc chloride solvent, which is the main production cost, must be recycled and reused, and the inorganic impurities introduced into the above redox system, whether cations or anions, which are not in this system, will affect the slurry when they accumulate to a certain amount. Stability, so as to affect the quality of the product fiber
To remove these impurities during recycling requires a large and complex operating system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Dissolve 6 grams of collagen in 300 grams of 55% zinc chloride solution, add 24 grams of acrylonitrile, 0.07 grams of peroxyhexanoic acid and 0.02 grams of glucose while stirring under the protection of nitrogen, the reaction temperature is 25 ℃ of acrylonitrile, the reaction time 3 hours. The molecular weight of the polymer is 63,000, the viscosity is 180 poise, and the solid content is 7.6%.

Embodiment 2

[0017] Dissolve 3 grams of collagen in a solution consisting of 79.2 grams of zinc chloride and 52.8 grams of water, add 9 grams of acrylonitrile, 0.05 grams of peroxycaproic acid, and 0.035 grams of glucose while stirring under nitrogen protection, and the reaction temperature is 35 ° C. The reaction time is 1 hour, the molecular weight of the polymer is 58,000, the viscosity is 110 poise, and the solid content is 6.3%.

Embodiment 3

[0019] Dissolve 156 grams of zinc chloride in 84 grams of water, then add 8 grams of collagen, after dissolving, under the protection of nitrogen, add 18.67 grams of acrylonitrile, 0.1 gram of peroxycaproic acid, 0.1 gram of glucose, and the reaction temperature 20°C, reaction time 6 hours, polymer molecular weight 69,000, viscosity 230 poise, solid content 8.8%.

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Abstract

The invention relates to a synthesis process of graft copolymerized fiber slurry of collagen and acrylonitrile, the process comprises the steps of using a redox initiation system for carrying out graft copolymerization on a framework compound of the collagen and a first polymer monomer of the acrylonitrile or the first polymer monomer of the acrylonitrile and a second polymer monomer in concentrated zinc chloride water solution, wherein the redox initiation system is an organic substance, and the organic substance consists of an oxidant of organic peroxo acid and a reducing agent of glucose. Compared with the prior art, the synthesis process can greatly reduce the introduction of impurities in the zinc chloride solvent, be conductive to the recycling of the zinc chloride solvent, reduce the cost and reduce the environmental pollution.

Description

technical field [0001] The invention relates to the polymerization of collagen and acrylonitrile, in particular to a synthesis process of collagen and acrylonitrile graft copolymerization fiber slurry. Background technique [0002] At present, the synthesis of collagen and acrylonitrile graft copolymerization fiber slurry is to use concentrated zinc chloride solution as a solvent, and under the trigger of redox system, collagen and acrylonitrile are uniformly grafted and polymerized. In the redox system, ammonium persulfate, sodium persulfate, potassium persulfate, and sodium chlorate are mostly used as oxidants, and sodium sulfite, sodium bisulfite, potassium sulfite and zinc sulfite invented later are used as reducing agents. In the above-mentioned redox system, no matter which group is selected for initiation, the system will produce a large amount of sulfate anions and cations such as potassium and sodium after the reaction, which will be unfavorable for the regeneration...

Claims

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Application Information

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IPC IPC(8): C08F289/00C08F4/40D01F4/00D01F6/40
Inventor 郑宇
Owner SHANGHAI ZHENGJIA MILKFIBER SCI & TECH
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