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Composite fiber of plant protein and acrylon and its manufacturing method

A plant protein and acrylic fiber technology, applied in the direction of cellulose/protein conjugated artificial filament, conjugated synthetic polymer artificial filament, etc., can solve the problems of poor human affinity, high production cost, easy to be charged with static electricity, etc. Achieve the effects of high added value, low production cost, and overcome poor human affinity

Inactive Publication Date: 2003-07-23
SINOPEC SHANGHAI PETROCHEMICAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, acrylic fiber also has many disadvantages: poor hydrophilicity makes it easy to be charged with static electricity in dry weather, it is completely synthesized from petroleum products, and has poor affinity with the human body
[0003] In order to improve the performance of acrylic fibers, researchers have done a lot of work with animal protein modified acrylic fibers, such as grafting polyacrylonitrile with silk, and grafting polyacrylonitrile fibers with milk protein, but these must be modified in the polymerization stage. The process is greatly changed, the production cost is high, and it cannot be widely promoted

Method used

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  • Composite fiber of plant protein and acrylon and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Soybean cake is mixed with 10 times the amount of water, soaked at 30°C for 8 hours, and the insoluble polysaccharide residues are separated, and these residues are mixed with water at a ratio of 1:12, and soaked for 1 hour to separate and remove the residues. The two parts of the solution were combined and the pH value of the solution was adjusted to 4.4 with hydrochloric acid and allowed to stand for 2 hours for acid precipitation. The soluble polysaccharides were separated by centrifugation, and dried by centrifugation until the water content of the protein was 15%.

[0025] Above-mentioned protein is dissolved in the sodium thiocyanate solution that concentration is 17% so that its protein concentration is 25%, then compound with the acrylic fiber slurry with the ratio of protein and polymer ratio of 1: 4, mix to be spinning slurry, finally It is better to let it stand for defoaming.

[0026] The spinning slurry enters the first coagulation bath from the spinneret ...

Embodiment 2

[0028] The sunflower seed meal is mixed with 8 times the amount of sodium hydroxide solution with a pH value of 8.8, soaked at room temperature for 2 hours, and the insoluble polysaccharide residues are separated. : 9 ratio, soak for 1 hour to separate the residue. The two parts of the solution were combined and the pH value of the solution was adjusted to 4.6 with hydrochloric acid and allowed to stand for 2 hours for acid precipitation. The soluble polysaccharides were separated by centrifugation, and dried by centrifugation until the water content of the protein was 20%.

[0029] Above-mentioned protein is dissolved in the zinc chloride solution that concentration is 18%, and its protein concentration is 20%, fiber grade polyacrylonitrile is dissolved in the zinc chloride solution of 16%, protein solution and polyacrylonitrile solution are with protein It is compounded with the polymer at a ratio of 1:5, mixed into a spinning slurry, and it is best to stand for defoaming. ...

Embodiment 3

[0032] Mix peanut cake with 9 times the amount of hydrochloric acid solution with a pH value of 6.8, soak at 50°C for 30 minutes, separate the insoluble polysaccharide residues, mix these residues with water at a ratio of 1:10, and soak for 30 minutes Separate to remove residue. The two parts of the solution were combined and the pH value of the solution was adjusted to 4.3 with sulfuric acid and allowed to stand for 1.5 hours for acid precipitation. The soluble polysaccharides were separated by centrifugation, and dried by centrifugation until the water content of the protein was 23%.

[0033] Dissolve the above protein in dimethylformamide to make the protein concentration 15%, dissolve fiber-grade polyacrylonitrile in dimethylformamide, mix protein solution and polyacrylonitrile solution with protein and spinning grade polymer The ratio is 1:4.5, and it is mixed into a spinning slurry, which is preferably defoamed by standing still.

[0034] The spinning slurry enters the...

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Abstract

A composite plant protein-acrylic fibre is prepared from natural high-molecular plant protein and polyacrylonitrile in Wt. ratio of (10-50):(50-90) through respectively preparing their solutions, proportional mixing, wet spinning, coagulating, drafting, hot stretching, curling, fixating shape, coating oil and drying. Its advantages are good thermal insulating, high dyeability and human affinity, and high antistatic performance.

Description

technical field [0001] The invention relates to a vegetable protein-acrylic fiber composite fiber and a manufacturing method thereof Background technique [0002] Acrylic fiber is a kind of synthetic fiber, which has excellent warmth retention property, excellent dyeability and no moth and mildew. After dyeing, it can obtain brighter colors than wool. Acrylic fiber is widely used in the manufacture of wool-like products, so acrylic fiber Also known as artificial wool. However, acrylic fiber also has many disadvantages: poor hydrophilicity makes it easy to be charged with static electricity in dry weather, it is completely synthesized from petroleum products, and has poor affinity with the human body. [0003] In order to improve the performance of acrylic fibers, researchers have done a lot of work with animal protein modified acrylic fibers, such as grafting polyacrylonitrile with silk, and grafting polyacrylonitrile fibers with milk protein, but these must be modified in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/08
Inventor 黄翔宇章悦庭沈新元杨庆郯志清
Owner SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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