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Preparation method for antibacterial acrylic fiber

A technology of acrylic fiber and polyacrylonitrile fiber, which is applied in the fields of biochemical fiber treatment, fiber type, textile and paper making, etc., can solve the problems of poor antibacterial effect, limited antibacterial time, and high toxicity of synthetic raw materials, and achieve long-lasting antibacterial performance and antibacterial performance. Long lasting effect with low production costs

Inactive Publication Date: 2016-09-28
邯郸派瑞电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high toxicity of synthetic raw materials, poor antibacterial effect, and limited antibacterial time in the preparation of antibacterial fibers in the prior art, and provide a kind of antibacterial acrylic fiber with wide source of raw materials, high safety, low production cost and good antibacterial effect. Preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] A kind of preparation method of antibacterial acrylic fiber, comprises the following steps:

[0018] 1) Soak the polyacrylonitrile fiber in an alkaline etching solution and etch for 3-12 hours. The alkaline etching solution is an aqueous solution or an alcohol solution of an alkaline substance, wherein the alkaline substance is sodium hydroxide, potassium hydroxide, hydrogen One or more of lithium oxide; the etching temperature is 30-100°C, the mass concentration of alkaline etching solution is 1%-10%, the solid-liquid ratio W / V is 1:15-1:200, and the polypropylene is taken out The acrylic fiber is washed with absolute ethanol and deionized water in turn until neutral, and dried at 50-150°C;

[0019] 2) Soak the polyacrylonitrile fiber after alkaline etching and drying in step 1 in the silver-containing solution, the silver-containing solution is one of silver nitrate solution, silver ammonia solution, and silver amine complex solution , the mass concentration ratio of...

Embodiment 1

[0022] Weigh 5g of polyacrylonitrile fibers, soak them in 75mL of ethanol solution with a concentration of 10% potassium hydroxide, control the temperature of the solution at 30°C for 12 hours; after taking out, wash the fibers with absolute ethanol and deionized water to neutral; After drying at 50°C, soak in 150mL of silver nitrate solution with a concentration of 0.5%, and stir the fiber at a speed of less than 200 rpm for 1 hour; raise the temperature of the solution to 80°C, and add 30mL of 3% formaldehyde solution drop by drop, Stand still for 20 minutes, take out the fiber, rinse with deionized water, and vacuum dry at 50° C. to obtain the required broad-spectrum antibacterial functional fiber with an antibacterial performance of 90%.

Embodiment 2

[0024] Weigh 1g of polyacrylonitrile fiber, soak it in 200mL of methanol solution with a concentration of 3% lithium hydroxide, control the temperature of the solution at 60°C for 8 hours; after taking it out, wash the fiber with absolute ethanol and deionized water to neutral; After drying at 50°C, soak in 200mL of silver nitrate solution with a concentration of 0.03%, and stir the fiber at a speed of less than 200 rpm for 10 minutes; raise the temperature of the solution to 80°C, and add 40mL of glucose with a concentration of 5% drop by drop solution, let it stand for 4 hours, take out the fiber, wash it with deionized water, and dry it in vacuum at 150° C. to obtain the required broad-spectrum antibacterial functional fiber with an antibacterial performance of 99%.

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Abstract

The invention discloses a preparation method for an antibacterial acrylic fiber and especially relates to a method for preparing a new antibacterial fiber by utilizing the process of taking a polyacrylonitrile fiber as a carrier and modifying through chemical etching. The preparation method comprises the following steps: performing basic hydrolysis etching on the polyacrylonitrile fiber, loading a silver antibacterial agent and reducing silver ions; adjusting the concentration and time of an amido solution and the concentration of the silver antibacterial agent by controlling the charge rate and hydrolysis temperature; and selecting a suitable reducing agent so as to prepare the silver antibacterial acrylic fiber with a broad-spectrum antibacterial function. The antibacterial acrylic fiber prepared according to the preparation method feels soft, is wide in antibacterial spectrum, has a long-lasting antibacterial property, is safe and reliable, can be prepared into health-care underwear, insoles, operation uniform, nurse uniform, medical gauze and the like, and is wide in application prospect.

Description

technical field [0001] The invention relates to the technical field of polymer material manufacturing, and relates to a functional fiber with antibacterial performance, in particular to a preparation method of antibacterial acrylic fiber. Background technique [0002] Acrylic fiber is soft to the touch and is known as "artificial wool". It is one of the world's largest synthetic fibers. With the increase of people's demand for functional fibers, especially antibacterial functional fibers, such as used in sportswear, antibacterial underwear, and even hospital bandages, etc., its research has become a hot spot in scientific research. There must be a broad market for the surface modification of acrylic fibers and the preparation of antibacterial fibers. [0003] At present, the methods of manufacturing antibacterial acrylic fiber mainly include blending spinning method, post-finishing method and chemical grafting modification method: blending spinning method adds antibacterial...

Claims

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Application Information

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IPC IPC(8): D06M11/83D06M15/03D06M13/188D06M11/38D06M101/28
CPCD06M11/83D06M11/38D06M13/188D06M15/03D06M16/00D06M2101/28
Inventor 管迎梅刘彦洋陈兆文范海明张浩王循良刘大鑫孙世操
Owner 邯郸派瑞电器有限公司
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