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 problems of no collagen-PEG composite fiber, etc., to improve spinnability, hydrophilicity, The effect of increasing strength

Inactive Publication Date: 2008-07-09
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] The chrome leather waste was washed with warm water at 40°C and cut into 1cm 2 Small pieces, and then smashed into chrome leather chips with a pulverizer. Weigh 100 parts of chrome leather scraps into a reactor equipped with a stirrer, a thermometer and a condenser, add CaO with a weight of 10% of the chrome leather scraps, then add 8 times the weight of the chromium leather scraps, and hydrolyze 6 times under agitation at 90 °C. 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] 40 parts of collagen powder were weighed and added to 60 parts of water, heated in a water bath at 60° C. and stirred continuously for 30 minutes to obtain a collagen solution with a concentration of 40%. At the same time, 20 parts of PEG were weighed and added to 80 parts of water, heated in a water bath at 60° C. and stirred continuously for 30 minutes to obtain a PEG...

Embodiment 2

[0053] The chrome leather waste was washed with warm water at 40°C and cut into 1cm 2 Small pieces, and then smashed into chrome leather chips with a pulverizer. Weigh 100 parts of chrome leather slag and add it to a reactor equipped with a mixer, a thermometer and a condenser, add 3% MgO of the chrome leather shavings, then add 7 times the weight of the chrome shavings, stir for 12hrs and add the chrome 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, the filtrate is concentrated and dried to obtain collagen powder.

[0054] 30 parts of collagen powder were weighed and added to 60 parts of water, heated in a water bath at 70° C. and stirred continuously for 40 minutes to obtain a collagen solution with a concentration of 30%. 30 parts of PEG were weighed and added to 70 parts of water, heated in a water bath at 70° C. and stirred continuously for 40 minutes to obtain a...

Embodiment 3

[0057] Try to remove the hair, grease and other impurities on the surface of the fresh pork skin purchased from the market, and then cut the raw material into small pieces. After soaking in acetone for 24hrs, it was naturally dried in a fume hood, and then the raw materials were crushed into raw dander with a pulverizer. Weigh 10 parts of raw dander, put it into a reaction kettle with a mixer and a thermometer, add 1 mol / L acetic acid solution that is 80 times the weight of raw dander, soak for 1 hour, add 2% pepsin by weight of raw dander, and start at 20 °C Mixer enzymolysis for 72 hours. Use 1 mol / L acetic acid solution to dilute the enzymatic hydrolysis solution by 3 to 5 times, and keep stirring. Centrifuge to remove the unenzymatically hydrolyzed part in the enzymatic hydrolysis solution to obtain a crude collagen solution.

[0058] Prepare an equal volume of 2mol / L (NH4) with the enzymatic hydrolysate 4 ) 2 SO 4 The solution was slowly mixed with the enzymatic hydr...

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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 alkali method 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 collagen-based PEG composite fibers and a spinning process thereof. Specifically related to the extraction of collagen, the preparation of collagen-PEG blended silk solution, the spinning of composite fibers, the preparation of fiber coagulation bath and the fixation of fibers, and the acetalization of composite fibers. The preparation method belongs to the technical field of textile industry, and the formed composite fiber material can be used for clothing and other fabric materials and biomedical materials. Background technique [0002] Any macromolecules whose molecules are linear and whose molecular weight is 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, and is the main component of connective tissues such as tendons, cartilage, skin and blood vessels. Natural collagen is a class of fibrillar proteins with rep...

Claims

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Application Information

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