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Preparation method of nanometer microgranule modified polyacrylonitrile anti static fiber

A polyacrylonitrile fiber, antistatic fiber technology, applied in the direction of conductive / antistatic filament manufacturing, fiber chemical characteristics, single-component synthetic polymer rayon, etc., can solve the problems of easy clogging of spinnerets, fiber mechanical properties, Dyeing performance decline and other problems

Inactive Publication Date: 2004-03-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the antistatic properties of polyacrylonitrile fibers, solve the problems of easy clogging of the spinneret, degradation of fiber mechanical properties and dyeing properties when blended spinning is used

Method used

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  • Preparation method of nanometer microgranule modified polyacrylonitrile anti static fiber
  • Preparation method of nanometer microgranule modified polyacrylonitrile anti static fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add nano-ATO (about 130 nanometers) in the NaSCN aqueous solution that is 10% by weight fraction, the weight percentage of ATO is 12%, beating with high-speed mixer 30 minutes, adding weight fraction in suspension is 4%

[0024] (relative to ATO) dispersant polyethyleneimine, then stirred at high speed for 30 minutes, cooled to about 5°C to obtain a coagulation bath (ATO particle size in the bath is about 140 nanometers), and then spun according to the spinning process ①, The sample number is 2.

Embodiment 2

[0026] Add nano-ATO (about 130 nanometers) in deionized water, the weight percentage of ATO is 0.5%, beating with a high-speed mixer for 30 minutes, and adding the dispersant polyethyleneimine with a weight fraction of 4% (relative to ATO) in the suspension , then stirred at high speed for 30 minutes, heated to about 60°C to obtain a preheating bath (ATO particle size in the bath is about 130 nm), dissolved PAN in NaSCN solution, and used this as the spinning stock solution, according to the spinning process② Spinning was carried out and the sample number was 3.

Embodiment 3

[0028] Add nano-ATO (about 130 nanometers) in deionized water, the weight percentage of ATO is 5%, beating with a high-speed mixer for 30 minutes, and adding the dispersant polyethyleneimine with a weight fraction of 4% (relative to ATO) in the suspension , then stirred at high speed for 30 minutes, heated to about 60°C to obtain a preheating bath (ATO particle size in the bath is about 130 nm), dissolved PAN in NaSCN solution, and used this as the spinning stock solution, according to the spinning process② Spinning was carried out, and the sample number was 4.

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Abstract

A process for preparing the nanoparticles modified antistatic polyacrylonitrile fibres features that the nano-class metallic oxide as antistatic substance is dispersed in the aqueous solution of polyacrylonitrile solvent containing sodium thiocyanate and N, N-dimethylformamide or dimethyl sulfoxide, and the resultant emulsion is used the solidifying bath prestretching bath, preheating bath, hot stretching bath, or spinning bath before the polyacrylonitrile fibre is spun. Its advantages are excellent antistatic performance and high mechanical property.

Description

technical field [0001] The invention belongs to the technical field of polymer synthetic fibers, and in particular relates to a preparation method for improving the antistatic property of polyacrylonitrile fibers by adding nanometer metal oxide powder and an antistatic agent during the spinning and forming process of polyacrylonitrile fibers. Background technique [0002] Polyacrylonitrile fiber is soft to the touch, mildew-proof and moth-proof, and has very superior light resistance, radiation resistance and corrosion resistance. Its bulkiness and warmth are superior to other synthetic fibers, so it is widely used in clothing, decoration and In the field of industry, its output ranks fourth among synthetic fibers. However, due to the inherent hydrophobicity and insulation of polyacrylonitrile fibers, the electrostatic phenomenon is serious: the fibers generate static electricity due to friction during post-processing, which makes it difficult to bundle and wind up on the ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F1/09D01F6/18
Inventor 顾利霞王栋林耀顾莉琴肖茹
Owner CHINA PETROLEUM & CHEM CORP
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