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A kind of ionic liquid method regeneration animal keratin fiber and preparation method thereof

A protein fiber and production method technology, applied in the textile field, can solve the problems of terminal fiber strength, easy loss of protein, difficulty in silk formation, etc., and achieve the effects of stable fiber performance, increased tensile stress, and suitable for large-scale production and promotion.

Active Publication Date: 2021-08-03
XINXIANG CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The natural protein is crushed and dissolved to form a spherical polymer, which is difficult to form into a filament. Therefore, the above-mentioned patents directly mix the natural protein with other polymers, and make fibers with the help of chain stress of other polymers. The strength of the terminal fibers It will be affected to a certain extent, and the protein in the regenerated protein composite fiber made by blending is easy to lose during the textile finishing (especially alkali treatment) process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An ionic liquid method for regenerating animal keratin fibers, the regenerated animal keratin fibers are swelled, dissolved, cross-linked, defoamed, and filled with pulverized animal keratin under the synergistic action of a cross-linking agent and a self-cross-linking agent through an ionic liquid Mixed, obtained by dry jet wet spinning, drying and self-crosslinking.

[0027] In this embodiment, the ionic liquid is composed of parts A and B, and the part A is 1-ethyl-3-methylimidazolium (EMIM) cation. Part B is a phosphate ester (DEP) type anion. The cross-linking agent is 3-(2-pyridyldimercapto)propionic acid N-hydroxysuccinimide ester (SPDP). The self-crosslinking agent is N-methylolacrylamide (NMA).

[0028] The ionic liquid accounts for 50% of the total mass of ionic liquid and animal keratin; the amount of cross-linking agent accounts for 5% by weight of animal keratin; the amount of self-crosslinking agent accounts for 1% by weight of animal keratin.

[0029] ...

Embodiment 2

[0038] In the present embodiment, the ionic liquid method regenerates animal keratin fibers, and the differences from Example 1 are:

[0039] The ionic liquid is composed of parts A and B, and part A is 1-allyl-3-methylimidazolium (AMIM) cations. The part B is AlCl 3 Anion-like. The crosslinking agent is glyoxal. The self-crosslinking agent is N,N'-methylenebisacrylamide (MBA). The ionic liquid accounts for 25% of the total mass of ionic liquid and animal keratin; the amount of cross-linking agent accounts for 0.5% by weight of animal keratin; the amount of self-crosslinking agent accounts for 10% by weight of animal keratin.

[0040] Its preparation method comprises the following steps:

[0041] 1) Swelling: Mix crushed animal keratin with ionic liquid and swell at room temperature for 24 hours;

[0042] 2) Dissolution: Stir the swollen mixed material mechanically and dissolve it at 120°C within 1 hour. The dissolution time is controlled within 12 hours to form a viscous...

Embodiment 3

[0050] In the present embodiment, the ionic liquid method regenerates animal keratin fibers, and the differences from Example 1 are:

[0051] The ionic liquid is composed of parts A and B, and the part A is N-methylimidazole (HMIM) and 1-butyl-3-methylimidazole (BMIM) cations. The Part B is CF 3 SO - 3 . The crosslinking agent is salicylaldehyde. The self-crosslinking agent is N,N'-methylenebisacrylamide (MBA).

[0052] The ionic liquid accounts for 90% of the total mass of the ionic liquid and animal keratin; the amount of the crosslinking agent accounts for 5% of the weight of the animal keratin; the amount of the self-crosslinking agent accounts for 5% of the weight of the animal keratin.

[0053] The preparation method of described ionic liquid method regeneration animal keratin fiber, comprises the following steps:

[0054] 1) Swelling: Mix crushed animal keratin with ionic liquid and swell at room temperature for 10 hours;

[0055] 2) Dissolution: Stir the swollen...

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PUM

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Abstract

An ionic liquid method for regenerating animal keratin fibers, using ionic liquid to swell, dissolve, crosslink, defoam, inject and mix the pulverized animal keratin under the synergistic action of a crosslinking agent and a self-crosslinking agent, and dry and spray Spinning, drying, and self-crosslinking. In the present invention, ionic liquid is selected as the solvent for regenerating animal keratin, and under the synergistic effect of crosslinking agent and self-crosslinking agent, animal keratin fiber is obtained through physical-chemical method dry spray wet spinning, the solvent is green and environmentally friendly, and is easy to recycle and reuse .

Description

technical field [0001] The invention belongs to the technical field of textiles, and relates to an ionic liquid method for regenerating animal keratin fibers and a preparation method thereof. Background technique [0002] At present, regenerated protein fibers are divided into regenerated plant protein fibers and regenerated animal keratin fibers. Most of the fibers are regenerated by attaching natural animal and plant proteins to other polymer carriers. CN99116636 and CN03111737 patents disclose the mixing of vegetable proteins and polyvinyl alcohol Produced the composite fiber of vegetable protein, and CN03111915, CN02115722 patents disclose the protein composite fiber that animal hair protein and polyvinyl alcohol blend make. In terms of using ionic liquid as a new solvent to prepare protein spinning glue, CN201210070496 patent discloses that imidazole ionic liquid is used to dissolve the mixture of peanut protein and polyvinyl alcohol to produce peanut protein / polyvinyl ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F4/00
Inventor 谢跃亭邵长金王文新曹俊友宋德顺邢善静龚二海杨丰军陈新伟李会恩张家启姚永鑫郭反修李明
Owner XINXIANG CHEM FIBER
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