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Creep resistant polyester supplementary restraint system industrial yarn and preparation method thereof

An airbag, anti-creep technology, applied in the direction of single-component copolyester rayon, conjugated synthetic polymer rayon, melt spinning, etc., to increase relative molecular weight, improve hydrolysis resistance, The effect of improving creep resistance

Active Publication Date: 2014-01-22
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 fibers

Method used

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  • Creep resistant polyester supplementary restraint system industrial yarn and preparation method thereof
  • Creep resistant polyester supplementary restraint system industrial yarn and preparation method thereof
  • Creep resistant polyester supplementary restraint system industrial yarn and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Preparation of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether:

[0057] 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% 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;

[0058] Preparation of fluor...

Embodiment 2

[0066] Preparation of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether:

[0067] 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, that is to obtain 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether crystals;

[0068] Preparation of fluo...

Embodiment 3

[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 1.8% 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, that is to obtain 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether crystals;

[0078] Preparation of fluorine-c...

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Abstract

The invention relates to a creep resistant polyester supplementary restraint system industrial yarn and a preparation method of the creep resistant polyester supplementary restraint system industrial yarn. The method comprises steps of preparation of creep resistant polyester high-viscosity slices and preparation of the creep resistant polyester supplementary restraint system industrial yarns, wherein the viscosity of the polyester is increased through solid phase polycondensation, then blending reaction is carried out on the polyester and fluorine-containing epoxy compound so as to obtain the creep resistant polyester high-viscosity slices; and the creep resistant polyester high-viscosity slices are prepared into the creep resistant polyester supplementary restraint system industrial yarns through metering, extruding, cooling, applying oil, stretching, thermoforming and winding. The creep resistant polyester supplementary restraint system industrial yarn has certain creep resistance, hydrolytic resistance and performance stability, can be used in high temperature and humidity environment for long time, and is applicable to airbag fabric.

Description

technical field [0001] The invention relates to an airbag industrial yarn of creep-resistant polyester and a preparation method thereof, in particular to an airbag industrial yarn of creep-resistant polyester modified by using a fluorine-containing epoxy compound as an end-capping agent 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. Automobile airbags have been widely used in automobiles at present. In order to enable the automobile to effectively protect the safety of the occupants in the event of severe collisions, the airbags must have good physical and mechanical properties, requiring high strength, light weight, Good friction performance, good ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/84D01F8/14D01D5/08D01D5/096D01D5/088C08G81/00
Inventor 陈建华汤方明王丽丽康爱旗孙晓华
Owner JIANGSU HENGLI CHEM FIBER
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