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Water-repellent creep-resistant polyester fully drawn yarn (FDY) fiber and preparation method thereof

A polyester fiber, anti-creep technology, applied in the field of creep-resistant polyester water-repellent FDY fiber and its preparation, to achieve the effects of expanding the application range, improving creep resistance performance, and improving hydrolysis resistance

Active Publication Date: 2015-06-17
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few studies on creep resistance of polyester

Method used

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  • Water-repellent creep-resistant polyester fully drawn yarn (FDY) fiber and preparation method thereof
  • Water-repellent creep-resistant polyester fully drawn yarn (FDY) fiber and preparation method thereof
  • Water-repellent creep-resistant polyester fully drawn yarn (FDY) fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Preparation of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether:

[0077] In a nitrogen atmosphere, mix epichlorohydrin and 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]diphenol at a molar ratio of 4:1 , add 1.5% of 15mol / L sodium hydroxide solution of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl) ethylene] diphenol mass, at room temperature Stir the reaction for 16h; then cool to room temperature, then add 30% of the mass of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol with anhydrous carbonic acid Sodium-saturated 5mol / L sodium hydroxide solution, stirred and reacted at room temperature for 10h; then extracted with chloroform, and the resulting organic phase was evaporated to remove chloroform and excess epichlorohydrin to obtain a thick liquid, which was added to anhydrous Recrystallization in ethanol to obtain crystals of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether;

[0078] Preparation of ...

Embodiment 2

[0084] Preparation of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether:

[0085] In a nitrogen atmosphere, mix epichlorohydrin and 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]diphenol at a molar ratio of 4:1 , add 2.0% 10mol / L sodium hydroxide solution of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol mass, at room temperature Stir the reaction for 18 hours; cool to room temperature, then add 40% of the mass of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol with anhydrous sodium carbonate Saturated 3mol / L sodium hydroxide solution, stirred and reacted at room temperature for 15h; then extracted with chloroform, the resulting organic phase was evaporated to remove chloroform and excess epichlorohydrin to obtain a thick liquid, which was added to absolute ethanol Medium recrystallization, namely obtain the crystal of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether;

[0086] Preparation of fl...

Embodiment 3

[0092] Preparation of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether:

[0093] In a nitrogen atmosphere, mix epichlorohydrin and 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]diphenol at a molar ratio of 4:1 , add 1.8% of 12mol / L sodium hydroxide solution of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol mass, at room temperature Stir the reaction for 17h; cool to room temperature, then add 35% of the mass of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol with anhydrous sodium carbonate Saturated 4mol / L sodium hydroxide solution, stirred and reacted at room temperature for 13h; then extracted with chloroform, the resulting organic phase was evaporated to remove chloroform and excess epichlorohydrin to obtain a thick liquid, which was added to absolute ethanol Medium recrystallization, namely obtain the crystal of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether;

[0094] Preparation of fluo...

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Abstract

The invention relates to a water-repellent creep-resistant polyester fully drawn yarn (FDY) fiber and a preparation method thereof. The preparation method comprises the preparation of a creep-resistant polyester melt and the preparation of the water-repellent creep-resistant polyester FDY fiber; polyester is blended or added with a fluorine-containing epoxy compound during polyester synthesizing to obtain the creep-resistant polyester melt; then the creep-resistant polyester melt is subjected to metering, extruding, cooling, oiling, stretching and winding to obtain the water-repellent creep-resistant polyester FDY fiber, wherein the oiling operation refers to the operation of coating the surface of the water-repellent creep-resistant polyester FDY fiber with water repellents. The water-repellent creep-resistant polyester FDY fiber has certain creep resistance, hydrolysis resistance and performance stability, can be used in a humid field environment or a high-temperature high-humidity environment for a long time, and has great prospect in the fields of plastic packaging, waterproof fabrics, ropes, mooring ropes, marine fibers and the like.

Description

technical field [0001] The invention relates to a creep-resistant polyester water-repellent FDY fiber and a preparation method thereof, in particular to a creep-resistant fiber modified with a fluorine-containing epoxy compound as an end-capping agent and coated with a water-repellent coating on the surface Polyester water-repellent FDY fiber and its preparation method. Background technique [0002] Polyester (PET) is one of the most widely used synthetic polymers by humans. It has high strength, high modulus and good heat resistance. It is the earliest linear thermoplastic polymer to achieve industrial applications. It is used in plastic packaging, film And chemical fiber and other fields have been widely used. Introducing stretching in the spinning process can obtain coiled yarn with high degree of orientation and medium crystallinity, which is called fully drawn yarn, or FDY. FDY is mainly used as the warp yarn of water-jet loom fabrics. The conventional fully drawn yar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/84D01F8/14D01F11/08D01D5/08D01D5/096D01D5/16D01D5/088D06M15/657D06M15/643C08G81/00D06M101/32
Inventor 杨大矛赵慧荣崔平川崔燕辉刘碧波
Owner JIANGSU HENGLI CHEM FIBER
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