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Preparing method of inorganic-organic hybridization antistatic polyacrylonitrile fibre

A polyacrylonitrile fiber, polyacrylonitrile technology, applied in the chemical characteristics of fibers, wet spinning, rayon manufacturing and other directions, can solve the problems of recycling and reuse of solvent pollution, etc., to improve antistatic effect, reduce dosage, resist Static effect long lasting effect

Inactive Publication Date: 2017-03-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the pollution of recycling and reusing solvent in this technical scheme is significant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Preparation of spinning dope:

[0027] At 60°C, add titanium dioxide with a particle size of 100-300nm and polyethylene glycol with a number-average molecular weight of 1000-8000 into an aqueous solution of sodium bisulfate, wherein the mass fraction of sodium bisulfate is 50%, and the reaction 2 hours; then lower the temperature to 0°C, then add nano antimony-doped tin dioxide with a particle size of 20 to 100 nm and an acrylonitrile homopolymer with a number average molecular weight of 50,000, and swell for 0.5 hours;

[0028] Then heat up to 40°C and stir for 4 hours. After filtering and degassing, the spinning stock solution is prepared; wherein, the mass percentage of the acrylonitrile homopolymer in the spinning stock solution is 8%, and the addition amount of titanium dioxide is acrylonitrile homopolymer. The content of the polymer is 0.25wt%, the content of polyethylene glycol is 1wt% of the acrylonitrile homopolymer, and the addition amount of nano antimony...

Embodiment 2

[0033](1) Preparation of spinning dope:

[0034] At a temperature of 80°C, titanium dioxide with a particle size of 100-300nm and polyethylene glycol with a number-average molecular weight of 8000 were added to an aqueous potassium hydrogensulfate solution, wherein the mass fraction of the aqueous potassium hydrogensulfate solution was 60%, and reaction 4 hour; then cool down to 20°C, then add antimony-doped nano-tin dioxide with a particle size of 20 to 100nm and an acrylonitrile copolymer with a number average molecular weight of 100,000, and swell for 2 hours;

[0035] Then heating up to 80°C and stirring for 6 hours, after filtration and defoaming, the spinning stock solution was prepared; wherein the acrylonitrile copolymer accounted for 15% by mass of the spinning stock solution, and the addition of titanium dioxide was 1% of the acrylonitrile copolymer 3wt%, the content of polyethylene glycol is 5wt% of the acrylonitrile copolymer, and the addition amount of nano antimo...

Embodiment 3

[0040] (1) Preparation of spinning dope:

[0041] At a temperature of 70°C, titanium dioxide with a particle size of 100-300nm and polyethylene glycol with a number-average molecular weight of 7000 were added to the zinc chloride aqueous solution, wherein the mass fraction of the zinc chloride aqueous solution was 60%, and reaction 3 hour; then lower the temperature to 10°C, then add nano antimony-doped tin dioxide with a particle size of 20 to 100nm and an acrylonitrile homopolymer with a number average molecular weight of 60,000, and swell for 1 hour;

[0042] Then heat up to 50°C and stir for 5 hours. After filtering and defoaming, the spinning stock solution is prepared; the mass percentage of the acrylonitrile homopolymer in the spinning stock solution is 10%, and the addition amount of titanium dioxide is 10% of the acrylonitrile homopolymer The content of polyethylene glycol is 3 wt% of the acrylonitrile homopolymer, and the addition amount of nano antimony-doped tin di...

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Abstract

The invention discloses a preparing method of an inorganic-organic hybridization antistatic polyacrylonitrile fibre. The method comprises the steps of 1, dissolving titanium dioxide and polyethylene glycol into a polyacrylonitrile solvent to react and form a wrappage, adding polyacrylonitrile and nanometer antimony doped tin oxide to obtain spinning dope, and performing standing to achieve deaeration; 2, obtaining an antistatic polyacrylonitrile fibre by the spinning dope through solvent spinning. The esterification reaction between titanium dioxide and polyethylene glycol in this method not only improves the dispersity of titanium dioxide in polyacrylonitrile, but also reduces the loss of polyethylene glycol in the solvent spinning washing process. Meanwhile, the electron conduction of metallic oxide and the hygroscopic conduction of polyethylene glycol ether bond have an antistatic synergistic effect, thus ATO dosage can be reduced and the effect on fibre color can be reduced. The preparing method of the inorganic-organic hybridization antistatic polyacrylonitrile fibre has the advantages of being low in cost, easy in technique and high in production efficiency, smoothly achieving fibre production by adopting a normal wet spinning technology, and meeting the requirement for industrial continuous production.

Description

technical field [0001] The invention belongs to the technical field of functional fiber preparation, and in particular relates to a preparation method of organic-inorganic hybrid antistatic polyacrylonitrile fiber. Background technique [0002] Polyacrylonitrile fiber is one of the main varieties of synthetic fibers. In 1950, the DuPont (DuPont) company in the United States realized the industrial production of polyacrylonitrile fiber. Polyacrylonitrile fiber has many excellent properties, such as good bulkiness, elasticity and warmth retention, superior light resistance and corrosion resistance, mildew resistance, moth resistance, and natural aesthetic feeling, so it has "synthetic Known as "wool", it has been widely used in civil and industrial fields. [0003] The volume resistivity of conventional polyacrylonitrile fibers is 10 13 ~10 14 Ω·cm, which is an insulating material, and its electrostatic phenomenon is serious. In the process of processing, it is difficult t...

Claims

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Application Information

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IPC IPC(8): D01F6/54D01F1/10D01D5/06
Inventor 陈道江马正升杨雪红张超峰路金奎章毅俞玉芳
Owner CHINA PETROLEUM & CHEM CORP
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