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Method for producing high-hygroscopicity acrylic fibers

A manufacturing method and high hygroscopic technology, applied in textiles and papermaking, fiber type, fiber processing, etc., can solve the problems of poor hygroscopicity and easy generation of static electricity, and achieve the effects of low production cost, improved hygroscopic performance, and reduced mechanical damage.

Inactive Publication Date: 2012-07-18
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But acrylic fiber also has many disadvantages, such as poor hygroscopicity, easy to generate static electricity, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: The mixed solution is composed of 0.1% sodium hydroxide by mass percentage concentration and 0.1% guanidine hydrochloride by mass percentage concentration, and 10 g of acrylic fiber is added to the mixed solution of 20 times the amount of acrylic fiber. Airtight hydrolysis and cyclization for 200 minutes, take out, wash and dry to obtain high moisture absorption and water absorption acrylic fiber.

Embodiment 2

[0015] The mixed solution is composed of sodium hydroxide with a mass percentage concentration of 1% and guanidine sulfate with a mass percentage concentration of 5%. Take 10g of acrylic fiber and add it to a mixed solution with 15 times the amount of acrylic fiber. After 100 minutes of curing, take it out, wash it and dry it to get high moisture absorption and water absorption acrylic fiber.

Embodiment 3

[0017] The mixed solution is composed of sodium hydroxide with a mass percentage concentration of 5% and guanidine sulfamate with a mass percentage concentration of 10%. Take 10g of acrylic fiber, add it to the mixed solution of 10 times the amount of acrylic fiber, and seal it for hydrolysis at a reaction temperature of 50°C. Cyclize for 60 minutes, take it out, wash it and dry it to obtain high moisture absorption and water absorption acrylic fiber.

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PUM

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Abstract

The invention relates to a method for producing high-hygroscopicity acrylic fibers, which is characterized by directly adding the acrylic fibers to mixed solution formed by sodium hydroxide or potassium hydroxide and guanidine reagents, carrying out hydrolysis and cyclization for 10-200min under the reaction temperature of 50-200 DEG C and carrying out cleaning and drying to produce the high-hygroscopicity acrylic fibers; or firstly adding the acrylic fibers to mixed solution formed by guanidine reagents and sodium hydroxide or potassium hydroxide to be soaked for 3-30min, then extruding the acrylic fibers until the water content is 50-500% and finally placing the extruded acrylic fibers into a steam setting vessel to be dry-steamed or steamed for 10-200min at 50-200 DEG C and carrying out cleaning and drying to produce the high-hygroscopicity acrylic fibers. The method can process the acrylic fibers into high-hygroscopicity acrylic fibers only by adopting the simple acrylic fiber hydrolyzing and crosslinking processes, has the advantages of simple production process, low equipment investment and low production cost and is easy to realize industrialization.

Description

technical field [0001] The invention relates to a method for manufacturing highly hygroscopic and water-absorbing acrylic fibers, and belongs to the technical field of chemical fiber manufacturing. Background technique [0002] Acrylic fiber is a kind of synthetic fiber, which has the characteristics of excellent warmth retention, dyeability and wool-like property. However, acrylic fiber also has many disadvantages, such as poor hygroscopicity and easy generation of static electricity. In order to improve the hygroscopic and water-absorbing properties of acrylic fibers, acrylic fiber workers have made unremitting efforts and created many methods for manufacturing high-moisture and water-absorbing acrylic fibers, such as preparing high-moisture and high-water-absorbing acrylic fibers by copolymerization, blending, and hydrolysis. Contents of the invention [0003] The purpose of the present invention is to provide a method for manufacturing high moisture-absorbing and wate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M13/432D06M11/38D06M101/28
Inventor 杨彦功
Owner SHANDONG UNIV OF TECH
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