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Double-protein acrylic fiber and preparation method thereof

A technology of acrylic fiber and double protein, which is applied in the field of home textiles, can solve the problems of affecting the moisture absorption of fabrics, thermal denaturation of proteins, and poor thermal stability, so as to speed up the process of glycosylation reaction, improve thermal stability, and improve thermal stability. The effect of stability

Pending Publication Date: 2022-03-25
LUOLAI LIFESTYLE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of the present invention is to provide a kind of double protein acrylic fiber and preparation method thereof, be used to solve double protein acrylic fiber in the prior art, thermal stability is not good, and the fabric that is processed into is in the finishing process, easily There are problems such as thermal denaturation of protein, which affects the performance of fabrics such as moisture absorption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0048] The present invention provides a method of preparing a dibin acrylic fiber, comprising the steps of:

[0049]Glycosylation: Plant protein and glucose are added in water according to mass ratio of 1: 1-1.5, and plant proteins are soy protein, maize and peanut proteins, and plant protein and water mass ratio of 2- 6: 100; Subsequently, 0.005-0.1 mol / L of sodium hydroxide solution or sodium hydrogen phosphate concentration is 11.5-12 g / L, a phosphate buffer having a hydrochloric acid dihydrogen salt is 9-10 g / L. The solution regulation system pH to 8-10, and the glycosylation reaction was carried out at 75-85 ° C for 35-45 min, and then at a temperature of -45 ° C ~ -55 ° C, the pressure was lyophilized under 500-600 Pa conditions, resulting in saccharification Plant protein; adding animal protein and glucose in water, adding water, animal protein is a mixture of milk casein or animal collagen or milk casein and animal collagen, and the mass ratio of animal protein and w...

Embodiment 1

[0055] Method for preparing dibin acrylic fibers, the specific steps are as follows:

[0056] A. Glycosylation: Add soy protein and glucose to add deionized water according to mass ratio 1: 1.5, and the mass ratio of soy protein and deionized water is 6: 100, followed by a 0.01 mol / L sodium hydroxide solution to adjust the system pH to 9; The glycosylation reaction was carried out at 80 ° C for 40 min, and then the temperature was at a temperature of -45 ° C, and the pressure was lyophilized under a condition of 600 Pa to obtain a glycated plant protein;

[0057] The milk casein and glucose were added in a mass ratio of 1: 1.5, and the mass ratio of the milk cleaner and deionized water was 6: 100; then adjusted the system pH to 9 with a 0.01 mol / L sodium hydroxide solution; The glycosylation reaction was carried out at 80 ° C for 40 min, and then the temperature was at -45 ° C, and the pressure was freeze and dried under 600 Pa conditions to obtain a glycalated animal protein;...

Embodiment 2

[0061] Method for preparing dibin acrylic fibers, the specific steps are as follows:

[0062] A. Glycosylation: Add corn protein and glucose to 1: 1.2 to 1: 1.2, the mass ratio of corn protein and water is 5: 100, followed by regulating the system pH to 8.5 by 0.01 mol / L sodium hydroxide solution. The glycosylation reaction was carried out at 85 ° C for 30 min, and then the temperature was 0.5 ° C, and the pressure was lyophilized under 550 Pa conditions to obtain a glycated plant protein;

[0063] The animal collagen and glucose were added in a mass ratio of 1: 1.2, the mass ratio of the animal collagen and water was 5: 100; then adjusted the system pH to 8.5 with a 0.01 mol / L sodium hydroxide solution; followed by 85; The glycosylation reaction was carried out at a temperature of ° C for 30 min, and then the temperature was 0.5 ° C, and the pressure was lyophilized under 550 Pa conditions to obtain a glycalated animal protein;

[0064] B. Grafting: The glycated plant protein...

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Abstract

The invention relates to a double-protein acrylic fiber and a preparation method thereof. The preparation method comprises the following steps: adding vegetable protein and glucose into water, carrying out glycosylation reaction, and freeze-drying to obtain saccharified vegetable protein; the method comprises the following steps: adding animal protein and glucose into water, carrying out glycosylation reaction, and freeze-drying to obtain saccharified animal protein; adding the saccharified plant protein and the saccharified animal protein into water to obtain a protein solution; the method comprises the following steps: soaking acrylic fibers in a sodium hydroxide aqueous solution, washing, drying, carrying out an acylating chlorination reaction on the acrylic fibers in a thionyl chloride atmosphere, carrying out a grafting reaction on the acrylic fibers in a protein solution, washing, and carrying out secondary drying. Through the treatment, glucose is introduced into protein, and then glycated protein is introduced into fiber; when the protein is heated and expanded, the steric effect of glucose prevents the aggregation of expanded protein molecules, and the thermal stability of the double-protein fiber is improved; the prepared fiber is good in elasticity and excellent in thermal stability.

Description

Technical field [0001] The present invention relates to the field of domestic textile technology, and in particular, to a dibin acrylic fiber and a preparation method thereof. Background technique [0002] Natural protein fibers such as wool and silk are important textile raw materials with high elastic, high strength, high toughness, light, soft and other characteristics. However, natural protein fibers have limited yield and cannot meet market demand. To this end, people have developed regenerative protein fibers. The regenerated protein fiber is a fiber made from a protein extracted in a substance such as silkworm, milk, soybean, peanuts. The regenerative protein fiber has excellent properties of natural protein fibers, and has the physical and chemical properties of synthetic fibers. [0003] According to the source of protein, the regenerated protein fibers can be divided into two major categories: regenerated plant protein fibers and regenerative animal protein fibers. Comm...

Claims

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Application Information

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IPC IPC(8): D06M15/15D06M13/328C08H1/00D06M101/28
CPCD06M15/15D06M13/328C08H1/00D06M2101/28
Inventor 徐良平宫怀瑞何留根张红艳
Owner LUOLAI LIFESTYLE TECH CO LTD
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