Antibacterial anti-static polyacrylonitrile fibers and manufacture method thereof

A technology of polyacrylonitrile fiber and polyacrylonitrile, which is applied in the manufacture of conductive/antistatic filaments, fiber chemical characteristics, wet spinning, etc., and can solve problems such as fabric damage

Active Publication Date: 2016-08-03
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technology adopted is to firmly graft copper ions and cationic groups of some basic dyes on the related groups of acrylic fibers through chemical reactions, but the added basic dyes have a damaging effect on the fabric

Method used

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  • Antibacterial anti-static polyacrylonitrile fibers and manufacture method thereof
  • Antibacterial anti-static polyacrylonitrile fibers and manufacture method thereof
  • Antibacterial anti-static polyacrylonitrile fibers and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A kind of preparation method of antibacterial antistatic polyacrylonitrile fiber, under the condition of 20 ℃, the chitosan aqueous solution containing the amino group with the mass percent concentration of 0.5% and the n-butyric acid aqueous solution containing the carboxyl group with the mass percent concentration of 3% are pressed Mixing, wherein, the relative molecular weight of chitosan is 240000, the molecular weight of n-butyric acid is 88.1, the molar ratio of chitosan and n-butyric acid is 1:0.3, accompanied by stirring; adopt 0.1mol / L HCl solution to adjust the reaction system pH value to 4, and then dropwise added AgNO with a concentration of 0.005g / mL to the mixture 3 solution, where AgNO 3 The molar ratio to chitosan was 0.1:1, and the stirring was continued for 0.5h after the dropwise addition was completed; 3 The molar ratio with sodium borohydride is 1:0.5, continue stirring for 1h after the dropwise addition, to obtain an aqueous solution of nano-silve...

Embodiment 2

[0062] A kind of preparation method of antibacterial antistatic polyacrylonitrile fiber, under the condition of 60 ℃, the carboxymethyl chitosan aqueous solution containing amino group with the concentration of 3% by mass percentage and the n-amyl chitosan containing carboxyl group with the concentration of 10% by mass are mixed Acid aqueous solution mixing, wherein, the relative molecular weight of carboxymethyl chitosan is 10000, the molecular weight of n-valeric acid is 102.13, the molar ratio of carboxymethyl chitosan and n-valeric acid is 1:1, accompanied by stirring; adopt 0.15 mol / L of H 2 SO 4 The solution adjusts the pH value of the reaction system to 6, and then drips a silver acetate solution with a concentration of 2g / mL in the mixed solution, wherein the molar ratio of silver acetate to carboxymethyl chitosan is 10:1, and after the addition is completed, continue Stir for 1h; add dropwise a concentration of 0.1g / mL potassium borohydride aqueous solution, wherein ...

Embodiment 3

[0066] A preparation method of antibacterial and antistatic polyacrylonitrile fiber, under the condition of 30 DEG C, mixing an aqueous solution of polyacrylamide containing amino groups with a mass percent concentration of 1% and a carboxyl-containing n-hexanoic acid aqueous solution with a mass percent concentration of 4%, Among them, the relative molecular weight of polyacrylamide is 1,000,000, the molecular weight of n-caproic acid is 115.15, the molar ratio of polyacrylamide and n-caproic acid is 1:0.4, accompanied by stirring; 0.3mol / L HNO 3 The solution adjusted the pH value of the reaction system to 5, and then added dropwise a silver sulfate solution with a concentration of 0.008g / mL to the mixed solution, wherein the molar ratio of silver sulfate to polyacrylamide was 0.5:1, and continued to stir for 0.6 h; dropwise adding concentration is 0.02g / mL ascorbic acid aqueous solution, wherein the mol ratio of silver sulfate and ascorbic acid is 1:0.8, continue to stir 1.1h...

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Abstract

The invention provides antibacterial anti-static polyacrylonitrile fibers and a manufacture method thereof. The manufacture method comprises the following steps: performing wet spinning on a hybrid material aqueous solution loaded with nano-silver, which is taken as an additive, and polyacrylonitrile. Meanwhile, the invention also provides a method for preparing the hybrid material aqueous solution loaded with nano-silver, and the method comprises the following steps: stirring and mixing an aqueous solution of carrier molecule A and an aqueous solution of stabilizer molecule B, regulating the pH value of the mixed solution, sequentially dropwise adding a silver ion salt solution and a reducing agent solution into the mixed solution, and stirring, thereby obtaining the hybrid material aqueous solution. The polyacrylonitrile fibers provided by the invention have the characteristics of high antibacterial capacity, lasting antibacterial property and the like, and the inhibition rates of staphylococcus aureus and Escherichia coli are higher than 90%. Meanwhile, the prepared polyacrylonitrile fibers have high anti-static ability and long anti-static time and have long service life.

Description

technical field [0001] The invention relates to a preparation method of polyacrylonitrile fiber, in particular to an antibacterial and antistatic polyacrylonitrile fiber and a preparation method thereof. Background technique [0002] In daily life, people will inevitably come into contact with various bacteria and viruses, some of which are pathogenic, threatening and harming people's lives and health. Fiber textiles are one of the necessities of life, but most textiles do not have antibacterial properties. Entering the 21st century, the outbreak and spread of SARS, bird flu, and hand-foot-mouth disease have seriously threatened people's lives and health; hospitals are places for saving lives, but cross-infection of patients in hospitals is common in real life. Self-cleaning medical supplies, including self-cleaning textiles, are an effective method of controlling nosocomial infections. How to endow fiber fabrics with antibacterial and antiviral functions and prepare fiber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/54D01F1/09D01F1/10D01D5/06D01D5/12D01D5/14D01D10/06
CPCD01D5/06D01D5/12D01D5/14D01D10/06D01F1/09D01F1/103D01F6/54
Inventor 孙宾纪晓寰朱美芳纪俊玲孙小国李冲
Owner DONGHUA UNIV
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