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Solvent method for preparing cellulose mixing fibre and application thereof

A technology of blending fiber and cellulose, which is applied in the direction of cellulose/protein conjugated artificial filament, spinning solution preparation, fiber treatment, etc., can solve environmental pollution and other problems, achieve good mechanical strength, and is conducive to environmental protection and The effect of operator health and ease of recycling

Inactive Publication Date: 2008-08-13
FUJIAN HONGYUAN GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a solvent preparation method of cellulose blended fibers and its application. By using ionic liquid as a co-solvent to prepare cellulose blended fibers, it solves the problem of producing cellulose blended fibers by the viscose method at present. Environmental pollution problems brought about to meet production needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Mix 9.95 parts of crushed bamboo cellulose and 0.05 parts of polyvinyl polymer, and mix with 100 parts of [BMIM]Cl (1-butyl-3-methylimidazole hydrochloride) ionic liquid evenly, at 45 ° C The mixture was stirred for 24 hours to obtain a spinning solution.

[0030] After the spinning solution is filtered and defoamed for 30 hours, it enters a coagulation bath containing 5% ionic liquid through a porous spinneret, and the temperature of the coagulation bath is 25°C. After 10% plasticizing and stretching, then through procedures such as washing, bleaching, oiling, and drying, the spinning speed is 5 m / min, and the fiber with a strength of 3.2 cN / dtex is obtained.

Embodiment 2

[0032] Mix 9.5 parts of crushed cotton cellulose, 0.5 parts of polyvinyl polymer, and 200 parts of [BMIM]Cl / [BMIM]BF 4 (1-butyl-3-methylimidazole hydrochloride / 1-butyl-3-methylimidazolium tetrafluoroborate, the ratio is 10:0.1~4:6) ionic liquid mixture, mix well, in Stirring was carried out at 100° C. for 24 hours to obtain a spinning solution.

[0033] After the spinning solution is filtered and defoamed for 120 hours, it enters a water coagulation bath through a porous spinneret, and the temperature of the coagulation bath is 15°C. After 1% plasticizing and stretching, then through procedures such as washing, bleaching, oiling, and drying, the spinning speed is 20 m / min, and the fiber with a strength of 3.5 cN / dtex is obtained.

Embodiment 3

[0035] Mix 9 parts of wood cellulose and 1 part of polyvinyl polymer that are pulverized, and mix evenly with 40 parts of [AMIM]Br (brominated 1-allyl-3-methylimidazolium salt) ionic liquid, at 60 The mixture was stirred at °C for 80 hours to obtain a spinning solution.

[0036] After the spinning solution is filtered and defoamed for 80 hours, it enters a coagulation bath containing 25% ionic liquid through a porous spinneret, and the temperature of the coagulation bath is 55°C. After 8% plasticizing and stretching, then through procedures such as washing, bleaching, oiling, and drying, the spinning speed is 30 m / min, and the fiber with a strength of 4.0 cN / dtex is obtained.

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Abstract

The invention relates to a method of cellulose blend fiber solvent and an application of the same, the method is: 1) evenly mixing the cellulose, the polyvinyl polymer and the ionic liquid, dissolved 1 to 80 hours in the 25-160[deg.] C, to form a uniform stability spinning dope of 3-40% of total solid content, the quality mixing ratio of the cellulose, the polyvinyl polymer and the ionic liquid is 99.5:0.5 to 60:40; 2) filtering and deaerating for 3-120 hours, the dope thread gushing from spinneret hole by coagulation bath is solidified to form primary cellulose; 3) drawing, washing, bleaching, finish application and drying to obtain the cellulose blend fiber. The invention prepares a blend cellulose fiber by ionic liquid, the method is high efficiency, green and environmental protection, the prepared fiber has satisfactory mechanical behaviors, and that underwear and handkerchief can be made by blend fiber, the spinning may be pure or blended into all kinds of clothing material, and also into the membrane for artificial organs, water processor, etc.

Description

technical field [0001] The invention belongs to the field of blended fibers, in particular to a solvent preparation method and application of cellulose blended fibers. Background technique [0002] Among all substances in nature, cellulose not only has a large reserve, but also has a huge recovery capacity. Only very small amounts of cellulose are currently made into fibers. The amount of cellulose used to make fibers and films is less than 4% of the world's industrially produced cellulose. With the continuous deepening of human understanding of nature and the increasing shortage of resources such as oil, coal, and natural gas, the utilization of cellulose will gradually expand. [0003] Since cellulose fiber can be converted into water vapor and carbon dioxide by biodegradation or safe combustion, the cellulose fiber causes less environmental damage caused by waste. Therefore, the development of cellulose fibers is very necessary. [0004] As a kind of regenerated cellu...

Claims

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Application Information

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IPC IPC(8): D01D1/02D01D1/10D01D5/06D01D5/12D02J1/22D01F8/02
Inventor 洪朝阳
Owner FUJIAN HONGYUAN GROUP CO LTD
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