Preparation method of flame-proof algae fiber material

A technology of seaweed fiber and potassium alginate, applied in wet spinning, alginate man-made filament and other directions, can solve the problems of seaweed fiber elasticity, strength and color that are not ideal, etc.

Active Publication Date: 2009-06-24
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the unsatisfactory problems of existing seaweed fibers in terms of elasticity, strength and color, the present inventor has conducted in-depth research, and found that by controlling the composition of the spinning raw material alginate and the proportion of the segment structure, and by adjusting the spinning solution Viscosity, control spinning coagulation and heat setting process, can get a kind of flame retardant seaweed fiber material with excellent comprehensive performance

Method used

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  • Preparation method of flame-proof algae fiber material

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Effect test

Embodiment 1

[0014] Add 10 kg of 200-mesh high-viscosity potassium alginate into a dissolving kettle filled with 190 liters of deionized water, stir and dissolve at a high speed at 70°C, and the ratio of the G segment to the M segment of the raw material potassium alginate is 1:1 , and use hydrogen peroxide to adjust the viscosity of the solution to 12000mPa.S, and make spinning solution after filtration and vacuum defoaming.

[0015] Utilize a spinneret with 4000 holes of 0.075 microns to carry out wet spinning, the spinning speed is 30 m / min, the temperature of the spinning solution is 55 °C, the coagulation bath is 3% calcium chloride aqueous solution, and the coagulation bath temperature is 40 °C . After passing through the coagulation bath, the primary seaweed fibers are drawn, heat-set and oiled after passing through the pre-heating bath and the drawing bath, wherein the temperatures of the pre-heating bath, the drawing bath and the drawing-setting temperature are 60°C, 100°C, and 12...

Embodiment 2

[0017] Add 8 kg of 200-mesh high-viscosity potassium alginate and 2 kg of 200-mesh sodium alginate into a dissolving kettle filled with 190 liters of deionized water, stir and dissolve at a high speed at 65°C, wherein the raw material potassium alginate G segment and M The ratio of the chain segment is 3:1, and the viscosity of the solution is adjusted to 10000mPa·S by sodium hypochlorite, and the spinning solution is made after filtration and vacuum defoaming.

[0018] Utilize the spinneret of 4000 holes 0.075 micron to carry out wet spinning, the spinning speed is 30 m / min, the temperature of the spinning solution is 55°C, the coagulation bath is 3.5% calcium chloride aqueous solution, and the coagulation bath temperature is 40°C . After passing through the coagulation bath, the primary seaweed fibers are drawn, heat-set and oiled after passing through the pre-heating bath and the drawing bath, wherein the temperatures of the pre-heating bath, the drawing bath and the drawin...

Embodiment 3

[0020] Add 10 kg of 200-mesh high-viscosity potassium alginate into a dissolving kettle filled with 190 liters of deionized water, stir and dissolve at a high speed at 70°C, and the ratio of the G segment to the M segment of the raw material potassium alginate is 2:1 , and use hydrogen peroxide to adjust the viscosity of the solution to 5000mPa·S, and make spinning solution after filtration and vacuum defoaming.

[0021] Utilize a spinneret with 4000 holes of 0.060 microns to carry out wet spinning, the spinning speed is 30 m / min, the temperature of the spinning solution is 55°C, the coagulation bath is 3% calcium chloride aqueous solution, and the coagulation bath temperature is 40°C . After passing through the coagulation bath, the primary seaweed fiber is subjected to drawing heat setting and oiling treatment after the preheating bath and drawing bath, wherein the temperatures of the preheating bath, drawing bath and drawing setting temperature are 70°C, 100°C, and 130°C re...

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Abstract

The invention discloses a preparation method of a flame-retardant seaweed fiber material as follows: Potassium alginate with a ratio of G segment to M segment in the molecular structure of 1:1-3:1 and a concentration of 4-7% by mass Or the aqueous solution of the mixture of potassium alginate and sodium alginate is fully pre-dissolved and dissolved, and after the viscosity is adjusted by sodium hypochlorite or hydrogen peroxide, filtered, and defoamed, the alginate fiber material is prepared by solution spinning at room temperature. The elongation ratio is 120-300%. The limiting oxygen index of the fiber reaches more than 34, the tensile strength of the fiber is greater than 3.5cN / tex, and the linear density is 2.2-3.5dtex. The fiber produced by the method of the invention has the characteristics of flame retardancy, high breaking strength and biodegradability, so it can be used to manufacture flame-retardant textiles by pure spinning or blending.

Description

technical field [0001] The present invention relates to a method for preparing a flame-retardant seaweed fiber new material, more particularly to a new seaweed fiber material prepared by wet spinning and stretching heat setting using potassium alginate and sodium alginate as spinning raw materials. It belongs to the field of polymer materials. Background technique [0002] In recent years, new fibers have emerged one after another, and the continuous innovation of regenerated cellulose fibers is one of the highlights, which provides new development opportunities for the world's textile and clothing industries. Cellulose fiber is favored by people because of its excellent wearability, but the cultivation of cotton occupies a large amount of farmland, and cotton fiber is flammable, so it must be modified by flame retardant to meet the needs of some protective clothing. Viscose fiber is also a flammable fiber, and a large amount of three wastes are produced in the production p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/04D01D5/06D01D5/096
Inventor 夏延致孔庆山纪全
Owner QINGDAO UNIV
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