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A kind of antibacterial antistatic polyacrylonitrile fiber and preparation method thereof

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

Active Publication Date: 2018-02-23
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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  • A kind of antibacterial antistatic polyacrylonitrile fiber and preparation method thereof
  • A kind of antibacterial antistatic polyacrylonitrile fiber and preparation method thereof
  • A kind of antibacterial antistatic polyacrylonitrile fiber and preparation method thereof

Examples

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Effect test

Embodiment 1

[0058] A method for preparing antibacterial and antistatic polyacrylonitrile fibers. Under the condition of 20°C, the amino-containing chitosan aqueous solution with a mass percentage concentration of 0.5% and the carboxyl-containing n-butyric acid aqueous solution with a mass percentage concentration of 3% Mix, where the relative molecular weight of chitosan is 240,000, the molecular weight of n-butyric acid is 88.1, and the molar ratio of chitosan to n-butyric acid is 1:0.3, accompanied by stirring; the reaction system is adjusted with 0.1 mol / L HCl solution The pH value of the solution reaches 4, and then add dropwise AgNO with a concentration of 0.005g / mL to the mixture 3 Solution in which AgNO 3 The molar ratio of chitosan to chitosan is 0.1:1. After the addition is complete, continue stirring for 0.5h; add dropwise an aqueous sodium borohydride solution with a concentration of 0.01g / mL, in which AgNO 3 The molar ratio to sodium borohydride is 1:0.5, and stirring is continue...

Embodiment 2

[0062] A preparation method of antibacterial and antistatic polyacrylonitrile fiber. Under the condition of 60°C, a 3% amino-containing carboxymethyl chitosan aqueous solution with a mass percentage concentration of 3% and a 10% mass percentage carboxyl-containing n-pentane Mix the acid aqueous solution, where 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 to 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 adds dropwise a silver acetate solution with a concentration of 2g / mL to the mixture, where the molar ratio of silver acetate to carboxymethyl chitosan is 10:1, and continues after the addition is complete Stir for 1h; add 0.1g / mL potassium borohydride aqueous solution dropwise, in which the molar ratio of silver acetate to potassium borohydride is 1:12. After the addi...

Embodiment 3

[0066] A preparation method of antibacterial and antistatic polyacrylonitrile fiber. Under the condition of 30°C, an aqueous solution of polyacrylamide containing amino groups with a concentration of 1% by mass is mixed with an aqueous solution of carboxyl-containing n-hexanoic acid with a concentration of 4% by mass. Among them, the relative molecular weight of polyacrylamide is 1000000, the molecular weight of n-hexanoic acid is 115.15, and the molar ratio of polyacrylamide to n-hexanoic acid is 1:0.4, accompanied by stirring; 0.3mol / L HNO is used 3 The solution adjusts the pH value of the reaction system to 5, and then adds dropwise a silver sulfate solution with a concentration of 0.008g / mL to the mixed solution. The molar ratio of silver sulfate to polyacrylamide is 0.5:1. After the addition is complete, continue stirring 0.6 h; add dropwise an aqueous solution of ascorbic acid with a concentration of 0.02g / mL, in which the molar ratio of silver sulfate to ascorbic acid is 1...

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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 a variety of bacteria and viruses, some of which are pathogenic and threaten and harm people's lives and health. Fiber textiles are one of the necessities of people's lives, but most textiles do not have antibacterial properties. In the 21st century, the outbreak and spread of SARS, avian flu, and hand, foot and mouth disease have seriously threatened people's lives and health; hospitals are places to rescue the dying, but in real life, there are common cases of cross-infection of patients in the hospital. Self-cleaning medical supplies, including self-cleaning textiles, are an effective way to control nosocomial infections. How to impart antibacterial and antiviral functions to fiber fab...

Claims

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Application Information

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Patent Type & Authority Patents(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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