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Preparation method of modified polyester chip, polyester chip and polyester fiber

A technology of modified polyester chips, applied in the field of preparation of polyester chips and polyester fibers, modified polyester chips, can solve the problems of tourmaline superfine powder agglomeration, etc., to achieve environmental and human benefits, long-lasting effect , the effect of low viscosity

Active Publication Date: 2019-03-15
福建省银河服饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But this method still has the following problems: (1) the tourmaline ultrafine powder ethylene glycol slurry that has been surface-treated must be prepared and used now, otherwise the tourmaline ultrafine powder will produce agglomeration very quickly; (2) the ultrafine tourmaline is Physically dispersed in polyester chips, there will still be agglomeration during the polycondensation process

Method used

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  • Preparation method of modified polyester chip, polyester chip and polyester fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Add 100 parts of purified terephthalic acid, 1.3 parts of polyhydroxy modified nano tourmaline 1 and 110 parts of ethylene glycol in a container with a stirring bar, a thermometer and a flow divider, and carry out esterification reaction at 250-255 °C, During the reaction process, the generated water was continuously removed, and the viscosity of the reaction intermediate was measured to monitor the esterification rate of the reaction. The reaction was carried out until the esterification rate reached more than 92%, and the temperature was lowered to obtain the esterification intermediate 1.

[0042] Add 100 parts of esterification intermediate 1 and 320 ppm of antimony trioxide into a container with a stirring rod, a thermometer and a vacuum pump, carry out polycondensation reaction at 267° C. for 1.5 hours under a negative pressure of <6000 Pa, and then adjust the negative pressure to 70Pa, react at 270°C for 4 hours, lower the temperature, cast a belt, cool, and pelle...

Embodiment 2

[0044] Add 100 parts of purified terephthalic acid, 3 parts of polyhydroxy modified nano tourmaline 2 and 120 parts of ethylene glycol in a container with a stirring bar, a thermometer and a flow divider, and carry out esterification reaction at 255-260 °C, During the reaction process, the generated water was continuously removed, and the viscosity of the reaction intermediate was measured to monitor the esterification rate of the reaction. The reaction was carried out until the esterification rate was at least 92%, and the temperature was lowered to obtain the esterification intermediate 2.

[0045] Add 100 parts of esterification intermediate 2 and 350ppm of antimony trioxide into a container with a stirring rod, a thermometer and a vacuum pump connected, under a negative pressure of <6000Pa, carry out polycondensation reaction at 270°C for 1.5 hours, and then adjust the negative pressure to 66Pa , reacted at 275° C. for 3 hours, lowered the temperature, cast a belt, cooled, ...

Embodiment 3

[0047] Add 100 parts of purified terephthalic acid, 7 parts of polyhydroxy modified nano tourmaline 1 and 140 parts of ethylene glycol in a container with a stirring bar, a thermometer and a flow divider, and carry out esterification reaction at 270-275 °C, During the reaction process, the generated water was continuously removed, and the viscosity of the reaction intermediate was measured to monitor the esterification rate of the reaction. The reaction was carried out until the esterification rate was at least 92%, and the temperature was lowered to obtain the esterification intermediate 3.

[0048] Add 100 parts of esterification intermediate 3 and 380ppm antimony trioxide into a container with a stirring rod, a thermometer and a vacuum pump connected, under a negative pressure of <6000Pa, carry out polycondensation reaction at 280°C for 1 hour, and then adjust the negative pressure to 60Pa, React at 285°C for 2 hours, lower the temperature, cast a belt, cool, and cut into pe...

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Abstract

The invention relates to the field of modification of synthetic fibers, in particular to a preparation method of a modified polyester chip. Nano-tourmaline is modified with a vinyl silane coupling agent and then subjected to a thiol-ene click chemistry reaction with 3-mercapto-1,2-propanediol, modified nano-tourmaline modified with polyhydroxyl on surface is prepared and added to purified terephthalic acid and ethylene glycol for condensation polymerization, and the modified polyester chip is obtained. Fabric woven from fibers obtained from the modified polyester chip by spinning has long-acting negative oxygen ion producing and far infrared effects, can purify the environment and brings health care and physiotherapeutic effects to human bodies.

Description

technical field [0001] The invention relates to the field of synthetic fiber modification, in particular to a preparation method of modified polyester chips, polyester chips and polyester fibers. Background technique [0002] Polyester fiber (polyester fiber), commonly known as "polyester", referred to as PET fiber, is a synthetic fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and dibasic alcohol. The biggest advantage of polyester fiber is that it has good wrinkle resistance and shape retention, and has high strength and elastic recovery ability. It is strong and durable, anti-wrinkle and non-ironing, and non-sticky. [0003] Tourmaline, also known as tourmaline or tourmaline, is the only gem in the world with piezoelectric and hot spot effects. It will spontaneously produce negative oxygen ions and far infrared when the external pressure changes or changes in temperature, so it is harmful to the human body and the environment. Bot...

Claims

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Application Information

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IPC IPC(8): C08G63/183C08K9/06C08K9/04C08K3/38D01F6/92D01F1/10
CPCC08G63/183C08K3/38C08K9/04C08K9/06C08K2003/387C08K2201/011D01F1/10D01F6/92
Inventor 刘云剑
Owner 福建省银河服饰有限公司
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