Alginate/polyvinyl alcohol composite fiber and its preparing process

A technology of polyvinyl alcohol and composite fiber, which is applied in the direction of fiber chemical characteristics, conjugated synthetic polymer artificial filament, wet spinning method, etc., and can solve the problems of high cost and low strength of composite fiber

Active Publication Date: 2007-06-27
青岛源海新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyvinyl alcohol fibers are widely used in the textile industry, medical and other fields, and there are many studies on polyvinyl alcohol modified fibers, such as the preparation of polyvinyl alcohol biocompatible fibers applied by Endou Riyoukei (JP2005146474), and the carapace applied by Sun Yushan. Amine/polyvinyl alcohol composite fiber and its manufacturing method (CN02100120.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Dissolve 50 grams of sodium alginate with a viscosity of 1000 mPa·S in 950 grams of water, stir well at 80°C to obtain a sodium alginate solution with a content of 5% (mass percentage), add a certain amount of sodium hypochlorite to make it The content in the sodium alginate solution is 0.1%; 200 grams of polyvinyl alcohol with a degree of polymerization of 3000 is fully dissolved in 1800 grams of water at 95 ° C to make a 10% (mass percentage) solution; the above solution is heated at 80 ° C Stir and mix, filter, defoam and stand still for 8 hours to make a spinning solution; the spinning solution is spun into the first coagulation bath with a temperature of 45°C through a wet spinning machine at a spinning speed of 20m / min. , drafting, wherein the mass number of each component contained in the coagulation bath solution is respectively: calcium chloride 3%, hydrogen chloride 1.2%, cetylpyrrolium chloride 0.05%, and the drafting ratio of the composite fiber is 300%; Aft...

Embodiment 2

[0012] Dissolve 400 grams of sodium alginate with a viscosity of 1000 mPa·S in 2600 grams of water, stir well at 70 ° C to obtain a sodium alginate solution with a content of 4% (mass percentage), add a certain amount of sodium hypochlorite to make it in the seaweed The content in the sodium bicarbonate solution is 0.05%; 60 grams of polyvinyl alcohol with a degree of polymerization of 3000 is fully dissolved in 440 grams of water at 90° C. to make a 12% (mass percentage) solution; the above solution is heated at 80° C. Fully stir and mix, filter, defoam and stand for 10 hours to make a spinning solution; the spinning solution is spun through a wet spinning machine at a spinning speed of 25m / min and enters the first coagulation bath with a temperature of 30°C for coagulation, Drawing, wherein the mass number of each component contained in the coagulation bath solution is respectively: calcium chloride 6%, hydrogen chloride 0.6%, hexadecyl pyrrolium chloride 0.09%, and the drawi...

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Abstract

The present invention is alginate/polyvinyl alcohol composite fiber and its preparation process. The production process includes the following steps: mixing 2-8 wt% concentration sodium alginate solution and 5-15 wt% concentration water solution of polyvinyl alcohol in the polymerization degree of 1000-6000 at 30-100 deg.c, filtering and debubbling to form spinning liquor; spinning in a wet spinning machine at spinning speed of 10-80 m/min, solidifying in the first coagulating bath, drafting, cross-linking in the second coagulating bath and re-drafting to form the composite fiber; bundling drafting, steam drying, hot settling and other steps to produce alginate/polyvinyl alcohol composite fiber. The alginate/polyvinyl alcohol composite fiber has high strength, high elasticity and good biocompatibility, and may be applied in fabric, medical bandage, etc.

Description

Technical field: [0001] The invention relates to an alginate / polyvinyl alcohol composite fiber and a preparation method thereof. The composite fiber material is prepared by adopting processes of dissolving, stirring, defoaming, drawing, and steam drying and shaping, and belongs to the field of polymer materials. Background technique: [0002] There are many kinds of marine resources, and the reserves are very rich. According to statistics, the total amount of biological resources in the ocean is as high as 40-60 billion tons. The development and utilization of this part of resources is of great significance to the promotion of national economic development. Marine natural compounds such as sodium alginate, chitosan, and mannitol have received widespread attention and are green and renewable resources. In particular, alginate fibers prepared from sodium alginate can replace synthetic seaweed fiber materials and products made of seaweed fibers. It has good health care and medi...

Claims

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Application Information

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IPC IPC(8): D01F8/18D01F8/10D01D5/06
Inventor 夏延致纪全孔庆山
Owner 青岛源海新材料科技有限公司
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