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Collagen - Na-MMT complex fiber, and spinning technological process thereof

A technology of sodium montmorillonite and collagen, applied in the field of collagen-sodium montmorillonite composite fiber and its spinning technology, to achieve the effect of improving strength, strong binding ability and improving spinnability

Inactive Publication Date: 2011-06-29
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the collagen composite fibers of the prior art, the purpose of the present invention is to provide a collagen-based, utilizing a small amount of sodium-based montmorillonite Soil (Na-MMT) and collagen are blended and spun, which can be used not only as fabric materials, but also as new collagen composite fibers and spinning methods for biomedical materials such as surgical sutures and hemostatic gauze, so as to improve The mechanical properties and thermal stability of collagen composite fibers overcome many problems such as poor spinnability of pure collagen

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 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, 0.2 parts of Na-MMT was weighed and added to 99.8 parts of water, stirred continuously and evenly swelled in water for 2 days to obtain a Na-MMT solution with a concentration of 0.2% by weight. The collagen solution and the Na-MMT solution that was ultrasonically treated for 20 minutes were slowly blended at 60°C according to the ratio of collagen to Na-MMT of 10000:2 and stirred continuously. After 30 minutes, the mixed solution was vacuum-heated and filtered, and then placed in Stand in an oven at 60°C for 12hrs for defoaming to obtain a composite spinning solution.

[0028] Add the composite spinning solution into the storage tank with a heat preservation jacket, keep the circulating water at 60°C, and preheat the spinneret with 60°C circulating wa...

Embodiment 2

[0031] Weighed 30 parts of collagen powder and added to 70 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% by weight. At the same time, 0.5 part of Na-MMT was weighed and added to 99.5 parts of water, stirred continuously and then swelled in water for 3 days to obtain a Na-MMT solution with a concentration of 0.5% by weight. The collagen solution and the Na-MMT solution that was ultrasonically treated for 30 min were slowly blended at 70°C according to the ratio of collagen to Na-MMT of 10000:5 and stirred continuously. After 1 hour, the mixed solution was vacuum-heated and filtered, and then placed in Ultrasonic defoaming in an ultrasonic water bath at 60°C for 2 hrs to obtain a composite spinning solution.

[0032]Add the composite spinning solution to the storage tank with a heat preservation jacket, keep the circulating water at 70°C, and preheat the spinneret with 70°C circu...

Embodiment 3

[0035] 15 parts of collagen powder were weighed and added to 85 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 15%. At the same time, 1 part of Na-MMT was weighed and added to 99 parts of water, stirred continuously and then swelled in water for 5 days to obtain a Na-MMT solution with a concentration of 1% by weight. The collagen solution and the Na-MMT solution that was ultrasonically treated for 40 min were slowly blended at 60°C according to the ratio of collagen to Na-MMT of 10000:10 and stirred continuously. After 30 minutes, the mixed solution was filtered under vacuum heat, and then placed in Stand in an oven at 60°C for 12hrs for defoaming to obtain a composite spinning solution.

[0036] Add the composite spinning solution to the storage tank with a heat preservation jacket, keep the circulating water at 60°C, and preheat the spinneret with 60°C circulating water for 10 min...

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Abstract

The invention discloses novel collagen composite fiber mainly comprising collagen and a small amount of Na-MMT, and a spinning technical method thereof. The proportion of collagen and Na-MMT in the composite fiber counted in portion by dry weight is 10,000:1-100. The main preparation method of the composite fiber comprises: stirring and mixing 15 to 50 weight percent collagen solution and 0.1 to 2 weight percent Na-MMT solution according to a set proportion under a water bath condition between 50 and 80 DEG C; carrying out hot filtration at a temperature between 50 and 80 DEG C after the solutions are evenly mixed; obtaining spinning solution used to imitate collagen-Na-MMT composite fiber after defoaming; extruding the spinning solution through a spinneret under the action of gas pressure at a temperature between 50 and 80 DEG C; and entering inorganic salt coagulation bath to prepare the collagen-Na-MMT composite fiber through solidification. In addition, the intensity, swelling capacity, water absorption, and the like of textile composite fiber can be improved through post treatments such as acetalation and oiling. The collagen-Na-MMT composite fiber can be used for textile materials and biomedical materials.

Description

technical field [0001] The invention relates to the technical field of collagen composite fibers, in particular to a collagen-sodium montmorillonite (Na-MMT) composite fiber and a spinning process thereof. Background technique [0002] All 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. Due to its unique triple helix structure, good biocompatibility and biodegradability, it has been widely used in biomedical materials and polymer composite materials in recent years. attention. Among them, the use of collagen to prepare fibrous materials is a hot spot of research at home and abroad. The preparation method of collagen fiber mainly contains two kinds: one is chemical cross-linking agent modification method, as using metal ion, formaldehyde, glutaraldehyde, epoxy compound etc. as cross-linking agent modification preparation (CN 1213191C; CN 1481...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F4/00D01F1/10D01D1/10D01D5/00D01D10/06
Inventor 林炜李德富穆畅道缪可言
Owner SICHUAN UNIV
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