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Collagen-base PEG composite fibre and spinning technique thereof

A collagen and composite fiber technology, applied in fiber type, fiber treatment, spinning solution preparation, etc., can solve the problem of no collagen-PEG composite fibers, etc., and achieve improved spinnability, strength, and spinnability. The effect of spinning performance

Inactive Publication Date: 2010-06-02
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there are no literature reports or patents on the research of collagen-PEG composite fibers at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] After washing the chrome leather waste with warm water at 40℃, cut it into 1cm 2 Small pieces are then crushed with a pulverizer to get chrome shavings. Weigh 100 parts of chrome leather shavings into a reactor equipped with a mixer, a thermometer and a condenser, add 10% of the chrome leather shavings with CaO, and then add 8 times the chrome shavings with water, and hydrolyze at 90°C under agitation 6 hour. After hydrolysis, the filtrate and the filter residue are separated by suction filtration, and the filtrate is concentrated and dried to obtain collagen powder.

[0050] Weigh 40 parts of collagen powder and add it to 60 parts of water, heat it in a 60°C water bath and keep stirring for 30 minutes to obtain a collagen solution with a concentration of 40%. At the same time, 20 parts of PEG are weighed and added to 80 parts of water, heated in a water bath at 60° C. and continuously stirred for 30 minutes to obtain a 20% PEG solution. The two solutions were slowly ble...

Embodiment 2

[0053] After washing the chrome leather waste with warm water at 40℃, cut it into 1cm 2 Small pieces are then crushed with a pulverizer to get chrome shavings. Weigh 100 parts of chrome leather slag into a reactor equipped with a mixer, a thermometer and a condenser, add 3% of the chrome leather shavings weight in MgO, and then add 7 times the chrome leather shavings weight. After stirring for 12hrs, add the chrome leather shavings weight 2% 1398 enzyme, hydrolyzed at 25°C for 6 hours. After hydrolysis, the filtrate and the filter residue are separated by suction filtration, and the filtrate is concentrated and dried to obtain collagen powder.

[0054] Weigh 30 parts of collagen powder and add it to 60 parts of water, heat in a water bath at 70°C and continuously stir for 40 minutes to obtain a collagen solution with a concentration of 30%. Weigh 30 parts of PEG and add it to 70 parts of water, heat in a water bath at 70°C and continuously stir for 40 minutes to obtain a 30% PEG...

Embodiment 3

[0057] Try to remove the hair, grease and other impurities on the surface of fresh pig skins purchased on the market, and then cut the raw materials into small pieces. After soaking in acetone for 24hrs, the fume hood is naturally dried, and then the raw materials are broken into raw dander with a grinder. Weigh 10 parts of raw dander, put it into a reactor with a mixer and a thermometer, add a 1mol / L acetic acid solution 80 times the weight of the raw dander, soak for 1 hour, add pepsin with 2% of the raw dander weight, start at 20°C Enzymatic hydrolysis with a mixer for 72 hours. Use 1mol / L acetic acid solution to dilute the enzymolysis solution by 3 to 5 times, and stir constantly. Centrifugation to remove the undigested part of the enzymolysis solution to obtain a crude collagen solution.

[0058] Prepare 2mol / L (NH 4 ) 2 SO 4 The solution was slowly blended with the enzymatic hydrolysate under stirring, and then placed in a refrigerator at 5°C overnight for salting out. T...

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Abstract

The invention provides a novel collagen protein-based PEG composite fiber and spinning technology, comprises extracting collagen protein, preparing collagen protein-PEG blending spinning original liquid, spinning composite fiber, preparing coagulating liquid and fixing fiber, and carrying out acetalation process of composite fiber and the like, wherein collagen protein is extracted through alkalimethod or enzymatical method from chrome leather scraps, and can be also extracted from raw hide or heel tendon of healthy animals through enzymatical method. PEG is high molecular polymer which has biocompatibility. Spinning fluid which has certain concentration and viscosity is prepared through mixing collagen protein 100 parts and PEG 5-30 parts according to weight by parts, then composite fiber is prepared through wet spinning, and collagen protein-based composite fiber which is used in fabric needs carrying out acetalization and stretching and the like to improve intensity, swellability,water-absorbing quality and the like of composite fiber. The collagen protein-based PEG composite fiber which is disclosed by the invention can be both used in fabric material and in biological medical material.

Description

Technical field [0001] The invention relates to a collagen-based PEG composite fiber and its spinning process. Specifically, it involves the extraction of collagen, the preparation of collagen-PEG blended spinning solution, the spinning of composite fibers, the preparation of fiber coagulation bath and the fixation of fibers, and the acetalization of composite fibers. The manufacturing method belongs to the technical field of the textile industry, and the formed composite fiber material can be used for fabric materials such as clothing and biomedical materials. Background technique [0002] All macromolecules with linear molecules and molecular weights above 3000 can be made into fibers by appropriate methods. Collagen is the most abundant protein in mammals, accounting for about 25%-30% of the total protein. It is the main component of connective tissues such as tendons, cartilage, skin and blood vessels. Natural collagen is a type of fibrous protein with Gly-Xaa-Yaa (X, Y is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D1/02D01D1/10D06M13/12C07K14/78D01F8/10D01D5/06D01F8/02D06M101/24
Inventor 林炜张广照穆畅道李德富
Owner SICHUAN UNIV
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