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Method for preparation and wet spinning of regenerative keratin and silk-fibroin blended solution

A technology for regenerating silk fibroin and silk fibroin, which is applied in the field of biomass resource regeneration and utilization, can solve the problem that the molecular weight of keratin solution is low, the regenerated protein fiber cannot have the excellent characteristics of natural protein fiber, and cannot meet the actual requirements of wet spinning. and other problems to achieve the effect of improving elasticity and elongation

Inactive Publication Date: 2013-05-15
河南鼎大生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It makes full use of animal hair as waste, saves resources and avoids environmental pollution, but its characteristics of grafting and blending with cellulose make it impossible for regenerated protein fibers to have the excellent characteristics of natural protein fibers
[0006] There is also a technology that uses ionic liquids to directly dissolve animal hair to prepare regenerated protein fibers. It can be seen that the patent No. Negative effects caused by grafting and blending with cellulose are avoided, but the molecular weight of the keratin solution obtained by this invention is very low, and only flocculent regenerated keratin fibers can be obtained, which cannot meet the actual requirements of wet spinning

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0051] This method uses the mixed solution of regenerated keratin and silk fibroin as raw material to prepare composite fibers, the concentration of the mixed solution is 12%, and the mass ratio of keratin and silk fibroin is 1:1;

[0052] The regenerated keratin solution is made from animal hair. First, the animal hair is washed with a non-ionic washing solution, then dried at a temperature of 90°C, and then crushed into a fine powder with a diameter of 800 nanometers; Soak the fine powder in a mixed aqueous solution of zinc chloride and urea at a temperature of 65°C for 100 minutes, filter, wash with deionized water until neutral, filter again, and then dry at a temperature of 75°C to obtain an equilibrium moisture regain It is 18% raw material micropowder; finally, the raw material micropowder is added to 1-butyl-3-methylimidazolium chloride salt, and stirred vigorously at 110°C for 35in to obtain a regenerated keratin solution.

[0053] The regenerated silk fibroin solutio...

Embodiment example 2

[0084] This method uses the mixed solution of regenerated keratin and silk fibroin as raw material to prepare composite fibers, the concentration of the mixed solution is 18%, and the mass ratio of keratin and silk fibroin is 5:1;

[0085] The regenerated keratin solution is made from animal hair. First, the animal hair is washed with a non-ionic washing solution, then dried at a temperature of 50°C, and then crushed into a fine powder with a diameter of 500 nanometers; Soak the fine powder in a mixed aqueous solution of zinc chloride and urea at 40°C for 30 minutes, filter, wash with deionized water until neutral, filter again, and then dry at 65°C to obtain an equilibrium moisture regain 10% raw material micropowder; finally, add the raw material micropowder into 1-butyl-3-methylimidazolium chloride salt and stir vigorously at 90°C for 20 minutes to obtain a regenerated keratin solution.

[0086] The regenerated silk fibroin solution is made from silk. First, put the silk in...

Embodiment example 3

[0117] This method uses the mixed solution of regenerated keratin and silk fibroin as raw material to prepare composite fibers, the concentration of the mixed solution is 21%, and the mass ratio of keratin and silk fibroin is 3:1;

[0118] The regenerated keratin solution is made from animal hair. First, the animal hair is washed with a non-ionic washing solution, then dried at a temperature of 70°C, and then crushed into a fine powder with a diameter of 600 nanometers; Soak the fine powder in a mixed aqueous solution of zinc chloride and urea at a temperature of 50°C for 60 minutes, filter, wash with deionized water until neutral, filter again, and then dry at a temperature of 65°C to obtain an equilibrium moisture regain 15% raw material micropowder; finally, add the raw material micropowder into 1-ethyl-3-methylimidazolium diethyl phosphate, and stir vigorously at 100°C for 68 minutes to obtain a regenerated keratin solution.

[0119] The regenerated silk fibroin solution i...

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Abstract

The invention relates to a fibrosis technology for a regenerative keratin and silk-fibroin blended solution of animal hairs, and in particular relates to a method for preparation and wet spinning of the regenerative keratin and silk-fibroin blended solution. The method is characterized by comprising the following steps of: blending a regenerative keratin solution and a regenerative silk-fibroin solution, which use an ionic liquid as a solvent, by using waste mulberry silks, animal hairs and wools as raw materials to obtain a spinning solution, wherein the animal hairs include pig hairs, sheep wools, rabbit hairs, camel hairs, yak hairs and the like, and the wools do not have spinning and weaving utility values; molding by adopting wet spinning; improving the degree of orientation of fibers through multi-stage drawing; improving the crystallinity of the fibers through heat treatment and ethanol treatment; and improving the elasticity and tensibility of the fibers through oxidation crosslinking. The regenerative keratin and silk-fibroin fibers prepared by the method are protein fibers in an absolute sense, do not need to be blended and molded with synthetic polymer, and have excellent characteristics of natural cashmere fibers and silk fibers.

Description

technical field [0001] The invention belongs to the field of regeneration and utilization of biomass resources, and relates to a fibrosis technology of animal hair regenerated keratin and silk fibroin blend solution, in particular to a regenerated keratin and silk fibroin blend that does not need to be blended with synthetic polymers The preparation of mixed solution and the method of wet spinning. [0002] Background technique [0003] Protein fibers have good moisture absorption and antistatic properties, and have good affinity with human skin. In recent years, regenerated protein fibers processed from soybean protein, milk protein and silkworm chrysalis protein have been marketed and have shown certain excellent properties. performance. However, these regenerated protein fibers are prepared by copolymerizing or blending proteins with fiber-forming polymers such as polyvinyl alcohol, polyacrylonitrile, and cellulose (cellulose is a mixture of various organic polymer com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L89/04D01F8/02D01F11/02D01D5/06
CPCY02P20/54
Inventor 赵振强
Owner 河南鼎大生物科技有限公司
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