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Static electricity resisting polyethylene terephthalate modified resin

A technology of polyethylene terephthalate and diethyl phthalate, applied in the field of modified polyester, can solve the problems of restricting the application field, harming, affecting polyethylene terephthalate and the like

Inactive Publication Date: 2008-07-09
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electrostatic hazard directly affects the safety of production, processing and application of polyethylene terephthalate, restricting its application field

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0014] I. Contain the preparation of the polyether of nano-antimony doped tin oxide:

[0015] Will C 2 ~C 10 Aliphatic dibasic acid, molecular weight (1~9)×10 3 Polyethylene glycol, toluenesulfonic acid (catalyst) and antioxidant 1010 or antioxidant 330 are placed in a polymerization reactor and reacted at 100°C to 180°C for 1 to 2 hours. In the initial stage of the polycondensation reaction, the reaction pressure is controlled at not higher than 0.2MPa; while in the late stage of the polycondensation reaction, it is controlled below -0.1MPa. Nano antimony-doped tin oxide (ATO) is dispersed in the prepared polyether melt, and the amount of ATO is 5% to 40% of the weight of the polyether to obtain the polyether containing nano-antimony doped tin oxide. Among them, antimony-doped tin dioxide (ATO) nanoparticles were prepared by chemical precipitation (Qin Changyong, Gu Hongchen. New multifunctional ATO ultrafine conductive powder materials. Shanghai Chemical Industry, 2000, 2...

Embodiment 1

[0025] Add 50g PEG6000, 0.9g malonic acid, 0.1g p-toluenesulfonic acid, 1g antioxidant 1010 into a 2L reaction kettle, blow the kettle 3 times with nitrogen, fill with 0.15MPa nitrogen, heat at 130°C for 30 minutes, add 10g Nano-antimony-doped tin oxide was continued to be heated for 20 minutes, vacuumed to -0.1MPa, vacuumed for 50 minutes, and the discharged material was naturally cooled to obtain polyether containing nano-antimony-doped tin oxide.

[0026] Add 830g of terephthalic acid, 363ml of ethylene glycol, 0.282g of antimony trioxide, 0.0173g of cobalt acetate, and 14μl of trimethyl phosphate into a 2L reaction kettle, heat to 100°C and stir for 40 minutes, blow the kettle with nitrogen for 3 Once, fill with 0.15MPa nitrogen, heat to 240°C for esterification and dehydration for 2 hours and 50 minutes, discharge 175ml of water, add the above-mentioned polyether containing nano-antimony doped tin oxide, stir for 15 minutes, and control the vacuum to -0.1MPa within 1 hour,...

Embodiment 2

[0029] Add 100g PEG6000, 1.8g malonic acid, 0.1g p-toluenesulfonic acid, 1g antioxidant 1010, and 10g nano antimony-doped tin oxide into a 2L reaction kettle, blow the kettle with nitrogen for 3 times, and fill with 0.1MPa nitrogen, Heating at 110°C for 40 minutes, evacuating to -0.1MPa, and evacuating for 1 hour, and cooling the discharged material naturally to obtain a polyether containing nanometer antimony-doped tin oxide.

[0030] Add 830g of terephthalic acid, 363ml of ethylene glycol, 0.282g of antimony trioxide, 0.0173g of cobalt acetate, and 14μl of trimethyl phosphate into a 2L reaction kettle, heat to 100°C and stir for 40 minutes, blow the kettle with nitrogen for 3 Once, fill with 0.15MPa nitrogen gas, heat to 240°C for 2.5 hours for esterification and dehydration, 173ml of water is discharged, add the above-mentioned polyether containing nano-antimony doped tin oxide, and then blow the kettle with nitrogen for 3 times, and vacuumize to -0.1 within 1 hour MPa, eva...

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Abstract

The invention relates to an improved resin of polyethylene glycol terephthalate with antistatic property, and the resin is prepared by ethylene glycol terephthalate and polyester ether which contains nanometer antimony and is doped with stannic oxide in the temperature between 260 DEG C to 280 DEG C, and in the vacuum between 20 Pa-100Pa, wherein, the polyester ether which contains nanometer antimony and is doped with stannic oxide is prepared by the mixture which is composed of ethylene glycol terephthalate and polyether and nanometer antimony which are doped with stannic oxide, and the mass resistivity of the improved resin of the polyethylene glycol terephthalate which is got is 1*107 ohms.cm-9*109 ohms. cm. The invention solves the permanence problem of anti-static function of polyester.

Description

technical field [0001] The invention relates to a modified polyester, in particular to a polyethylene terephthalate modified resin with antistatic properties. Background technique [0002] Polyethylene terephthalate (referred to as polyester) resin has excellent properties such as high strength, high modulus, high resilience, heat resistance, friction resistance and acid resistance, and is widely used in the preparation of fibers, films and molded parts, etc. field. However, because polyethylene terephthalate is composed of rigid benzene rings and has no polar groups, its products are prone to static electricity. The tribostatic voltage of polyester is higher than 1000 volts, and the specific resistance is greater than 10 15 Ω·cm, the half-life is as long as several hours, even several days. Electrostatic hazard directly affects the safety of production, processing and application of polyethylene terephthalate, restricting its application field. [0003] In view of this,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/66C08G63/78C08K3/22D01F6/92D01F1/10
Inventor 李春忠邵玮邓超
Owner EAST CHINA UNIV OF SCI & TECH
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