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Collagen protein-polyacrylonitrile composite fiber and its preparation method

A technology of collagen and polyacrylonitrile, applied in the direction of conjugated synthetic polymer artificial filament, cellulose/protein conjugated artificial filament, etc., can solve the problems of slow degradation speed, environmental pollution, etc., and achieve improved strength and elongation , to avoid fiber brittleness, not easy to play the effect of static electricity

Inactive Publication Date: 2006-02-22
CHINA LEATHER & FOOTWEAR IND RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] ① After the textile products produced based on petroleum products are discarded, the degradation rate in the natural environment is very slow, resulting in environmental pollution;

Method used

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  • Collagen protein-polyacrylonitrile composite fiber and its preparation method
  • Collagen protein-polyacrylonitrile composite fiber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take the raw hides after dehairing and liming, put them in the meat remover, cut them into 2cm×2cm pieces, put them in the drum, wash them with 3 times of 35°C water for 15 minutes, control the water and then wash them again, pour them out. After removing the water in the drum, add 3 times of 35°C water, 2% ammonium sulfate and 0.5% equal weight of the bark, rotate for 40 minutes, discard the water in the drum, and use 3 times of 35°C clean water. Wash twice with water and control to dry, transfer the washed skin to the reaction kettle, add 2 times of water, gradually heat up to 80 ° C, and keep the temperature for 6 hours to gradually dissolve the raw skin, filter, take the filtrate and adjust the concentration to 14wt%.

[0033] Analyze the concentration of collagen solution, transfer 100Kg collagen solution to the reaction kettle, heat it up to 50°C, add 126Kg ZnCl 2 , stir to dissolve it completely, add 0.21Kg of ammonium persulfate dissolved in water (1.5% of the w...

Embodiment 2

[0038] Take the tannery's gray skin and discarded shavings, put it in the drum, wash it with 3 times of 35 ℃ water for 15 minutes, control the water and then wash it again, pour out the water in the drum, add 3 Add water at 35°C, 2% ammonium sulfate and 0.5% ammonium sulfate by weight of the bark, rotate for 40 minutes, discard the water in the drum, wash twice with 3 times the water at 35°C and control to dry, transfer the bark In the reaction kettle, add 3 times of water, gradually heat up to 80 ° C, and keep the temperature for 4 hours to gradually dissolve the dandruff. After filtration, the filtrate is collected, concentrated and spray-dried to obtain collagen solid powder.

[0039] The collagen solid powder was dissolved in dimethyl sulfoxide to obtain a collagen solution with a concentration of 6 wt%, which was transferred to a reaction kettle, heated to 68 ° C, and dissolved in dimethyl sulfoxide into an azo of 0.5% by weight of collagen. Diisobutyronitrile was gradual...

Embodiment 3

[0044] The gelatin solid was dissolved in ethyl carbonate to obtain a collagen solution with a concentration of 15wt%, which was transferred to a reaction kettle, heated to 75°C, and dissolved into benzoyl peroxide of 1% by weight of collagen with ethyl carbonate. It was added to the reaction kettle, and 40% acrylonitrile, 5% acrylamide and 15% ethyl acrylate mixed monomers by weight of collagen were simultaneously added dropwise. Sexual collagen solution.

[0045] The polyacrylonitrile solid was added to ethyl carbonate, stirred under heating, and the polyacrylonitrile was completely dissolved to obtain a polyacrylonitrile solution with a concentration of 15%;

[0046] Mix the above two solutions in proportion, the weight of the modified collagen solution is 20 parts, and the weight of the polyacrylonitrile solution is 80 parts, stir at 90 ° C for 1 hour, and stand at 80 ° C for 6 hours under normal pressure for defoaming . The spinning stock solution after defoaming is fil...

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Abstract

A composite collagen-polyacrylonitrile fibre is prepared from the collagen extracted from raw hide or the leftover of leather through graft polymerizing between said collagen and acrylonitrile or other end-type monomers, mixing with polyacrylonitrile to obtain dope, defoaming filtering, spinning, drafting and aldehydizing. It has high affinity to human skin and high hydroscopicity.

Description

technical field [0001] The invention relates to a new material in the textile industry and a manufacturing method thereof, in particular to a collagen-polyacrylonitrile composite fiber and a manufacturing method thereof. Background technique [0002] Protein fibers can be divided into natural protein fibers and artificial protein fibers according to their sources. Common natural protein fibers include animal hair and silk. Although natural protein fibers have good hygroscopicity, are soft and shiny, and are comfortable to wear, they have long production cycles, limited output and relatively high prices. Artificial protein fiber is made of natural protein as the main raw material, and is processed into fibers with textile purposes through special processes. The common ones are milk protein fiber and soybean protein fiber. The United States, Japan and some European countries began to study protein fibers in the 1930s and 1940s, using raw materials such as cow cheese, soybean ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/06D01F8/02
Inventor 丁志文
Owner CHINA LEATHER & FOOTWEAR IND RES INST
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