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Manufacturing method of multi-functional modified acrylic fibers with high moisture absorption and flame resistance

A technology of modified acrylic fibers and manufacturing methods, applied in textiles and papermaking, fiber types, fiber treatment, etc., can solve the problems of secondary environmental pollution, easy generation of static electricity, poor hygroscopicity, etc., achieve good mechanical properties, simple production process, The effect of less investment in equipment

Inactive Publication Date: 2010-09-29
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, easy to burn, etc., and it is easy to release toxic gas during combustion, which endangers human health and causes secondary environmental pollution.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take 7g of acrylic fiber, add it to 0.5% aqueous solution containing 15 times the amount of acrylic fiber by mass of copper sulfate, immerse and react at room temperature for 20 minutes, take it out, wash it and squeeze it dry. Then add the acrylic fibers containing copper ions into 6 times of the mixed solution composed of hydrazine hydrate, sodium hydroxide and surfactant and soak for 5 minutes. The mixed solution is composed of 5% hydrazine hydrate and 0.2% sodium hydroxide and a surfactant in a mass percentage concentration, and then the acrylic fiber is squeezed or dried into an aqueous acrylic fiber with a moisture content of 70%, and put into Dry-steam in a high-temperature and high-pressure steamer for 240 minutes at 130°C, take it out, wash it and dry it to obtain a highly hygroscopic flame-retardant acrylic fiber.

Embodiment 2

[0019] Take 8g of acrylic fiber, add it into an aqueous solution containing 1.0% copper sulfate with a mass percentage concentration of 12 times the amount of acrylic fiber, immerse and react at room temperature for 15 minutes, take it out, wash it and squeeze it dry. Then add the acrylic fibers containing copper ions to 7 times the mixed solution composed of hydrazine hydrate, sodium hydroxide, retarder and scouring agent and soak for 10 minutes. The mixed solution is composed of 10% hydrazine hydrate in mass percentage concentration, 0.5% sodium hydroxide in mass percentage concentration, 0.3% retarder and scouring agent in mass percentage concentration, and then the acrylic fiber is squeezed or dried to a moisture content of The 100% aqueous acrylic fiber is put into a high-temperature and high-pressure steamer and steamed for 200 minutes at 140° C., taken out, washed and dried to obtain a high-moisture-absorbing flame-retardant acrylic fiber.

Embodiment 3

[0021] Take 10g of acrylic fiber, add it to an aqueous solution containing 1.5% copper sulfate with a mass percentage concentration of 10 times the amount of acrylic fiber, react at 100° C. boiling water for 10 minutes, take it out, wash it, and spin it dry. Then the acrylic fibers containing copper ions are added to 8 times the mixed solution composed of hydrazine hydrate, sodium hydroxide, penetrating agent and leveling agent and soaked for 15 minutes. The mixed solution is 15% hydrazine hydrate with a mass percentage concentration of 1.0 % sodium hydroxide, 0.5% concentration of penetrating agent and leveling agent in mass percentage, then squeeze or dry the acrylic fiber into acrylic fiber with a water content of 150%, and put it into a high-temperature and high-pressure steaming pot Dry steam in a nitrogen atmosphere at 150°C for 150 minutes, take it out, wash it and dry it to obtain a highly hygroscopic flame-retardant acrylic fiber.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a manufacturing method of multi-functional modified acrylic fibers with high moisture absorption and flame resistance, which is characterized by directly complexing and cyclizing acrylic fibers into the acrylic fibers with high moisture absorption and flame resistance by using a method of chemical complexing and cyclization. The method comprises the following steps of: firstly, adding the acrylic fibers into a water solution containing copper ions for reaction to produce acrylic fibers containing the copper ions; then, adding the acrylic fibers containing the copper ions into a mixture of hydrazine hydrate and reaction assistants to immerse for a certain period of time; and finally, drying the acrylic fibers by squeezing or tossing to obtain acrylic fibers containing a certain amount of water solution, and steaming the acrylic fibers in a dry or gas mode in a high-temperature high-pressure steam setting vessel for a certain period of time to produce the acrylic fibers with high moisture absorption and flame resistance. The method can process the acrylic fibers into the acrylic fibers with high moisture absorption and flame resistance only with one simple high-temperature high-pressure steam setting vessel and fewer matching processes and equipment, which greatly reduces the traditional manufacturing process of the acrylic fibers with high moisture absorption and flame resistance; the invention has simple production process, low equipment investment, low production cost and easy realization of industrialization.

Description

technical field [0001] The invention relates to a method for manufacturing highly moisture-absorbing and flame-retardant multifunctional modified acrylic fiber, which 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. But acrylic fiber also has many disadvantages, such as poor hygroscopicity, easy to generate static electricity, easy to burn, etc., and it is easy to emit toxic gas during combustion, which is harmful to human health and causes secondary environmental pollution. In order to improve the hygroscopicity and flame retardancy of acrylic fibers, acrylic fiber workers from various countries have made unremitting efforts and created many high moisture absorption and flame retardant methods, such as preparing high moisture absorption and high water absorption acrylic fibers by copolymeriza...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/00D06M13/338D06M11/05D06M10/00D06M11/38D06M101/28
Inventor 杨彦功
Owner SHANDONG UNIV OF TECH
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