A kind of anti-wicking industrial yarn of anti-creep polyester and its preparation method

A creep-resistant, industrial yarn technology, applied in the direction of one-component polyester rayon, etc., to increase the relative molecular weight, improve the creep resistance, and improve the hydrolysis resistance.

Active Publication Date: 2015-10-07
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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  • A kind of anti-wicking industrial yarn of anti-creep polyester and its preparation method
  • A kind of anti-wicking industrial yarn of anti-creep polyester and its preparation method
  • A kind of anti-wicking industrial yarn of anti-creep polyester and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Preparation of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether:

[0059] 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;

[0060] Preparation of ...

Embodiment 2

[0068] Preparation of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether:

[0069] 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;

[0070] Preparation of fl...

Embodiment 3

[0078] Preparation of 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylene]diphenol diglycidyl ether:

[0079]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;

[0080] Preparation of fluor...

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Abstract

The invention relates to a creep resistant polyester anti-wicking industrial yarn and a preparation method thereof. The preparation method comprises preparation of a creep resistant polyester hyperviscous slice and preparation of a creep resistant polyester anti-wicking industrial yarn. The preparation method specifically comprises the following steps: tackifying the polyester through solid phase polycondensation, and then alloying with a fluorine-containing epoxy compound to obtain the creep resistant polyester hyperviscous slice; preparing the creep resistant polyester anti-wicking industrial yarn through the obtained creep resistant polyester hyperviscous slice by the following steps: metering; extruding; cooling; oiling; stretching; thermally setting; oiling an anti-wicking oil absorber; coiling; plastifying; carrying out heat balance treatment. The obtained creep resistant polyester anti-wicking industrial yarn has certain creep resistance, hydrolysis resistance and performance stability, can be used in high temperature and high humidity environments for a long time, and has huge prospect in the fields such as advertising lamp boxes, sun cloth and water storage containers.

Description

technical field [0001] The invention relates to an anti-wicking type industrial yarn of creep-resistant polyester and a preparation method thereof, in particular to an anti-wicking type of creep-resistant polyester modified by using a fluorine-containing epoxy compound as an end-capping agent Type industrial yarn 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. Polyester industrial filaments without anti-wicking treatment are processed into skeleton fabrics, and after being made into PVC-coated fabrics, they will be damp during use. The "wick effect" will cause the skeleton layer to absorb moisture and even pollute the cloth surface. When PVC coated f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92C08G63/91C08G59/02
Inventor 高亮汤方明李文刚王丽丽杨超明
Owner JIANGSU HENGLI CHEM FIBER
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