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Poly(carbonate-ether) polyurethane acrylate, ultraviolet-curable antistatic coating and preparation method of ultraviolet-curable antistatic coating

A polyurethane acrylate and isobornyl acrylate technology, which is applied in polyurea/polyurethane coatings, conductive coatings, coatings, etc., can solve the problems of low efficiency of antistatic coatings, meet the requirements of fast assembly line coating, and improve antistatic durability performance, improve the effect of antistatic effect

Active Publication Date: 2013-04-24
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the technical problem of low efficiency of UV-curable antistatic coatings in the prior art, the invention provides a poly(carbonate-ether) type polyurethane acrylate, UV-curable antistatic coatings and a preparation method thereof. Light-curing antistatic coating is fully cured within 5-10s, and has excellent antistatic performance and long-lasting antistatic effect

Method used

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  • Poly(carbonate-ether) polyurethane acrylate, ultraviolet-curable antistatic coating and preparation method of ultraviolet-curable antistatic coating
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  • Poly(carbonate-ether) polyurethane acrylate, ultraviolet-curable antistatic coating and preparation method of ultraviolet-curable antistatic coating

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preparation example Construction

[0065] The preparation method of poly(carbonate-ether) type polyurethane acrylate comprises the following steps:

[0066] (1) under the protection of a dry inert atmosphere, add poly(carbonate-ether) glycol and trimethylolpropane to the reaction unit, and distill under reduced pressure;

[0067] (2) add isobornyl acrylate and diisocyanate, and react to obtain the first intermediate;

[0068] (3) Adding a catalyst and a hydroxyl-containing acrylate dissolved in p-hydroxyanisole to the first intermediate, and continuing the reaction to obtain poly(carbonate-ether) polyurethane acrylate.

[0069] The poly(carbonate-ether) glycol of the present invention can be prepared by known techniques in the art, see patent 201210086834.X for details; the preferred number average molecular weight is a poly(carbonate-ether) glycol with a number average molecular weight of 1500-7500 Daltons , more preferably poly(carbonate-ether) glycols with a number average molecular weight of 1500-2800 Dalt...

Embodiment 1

[0102] Preparation of conductive polyaniline dispersion:

[0103] Add 1g of intrinsic polyaniline to 35g of 1,6-hexanediol diacrylate and 20g of isobornyl acrylate, raise the temperature to 110°C, stir at 2000rpm for 0.5h, then add 3.5g of dodecane Base benzene sulfonic acid, continue to stir at 2000rpm speed 8h, stop stirring, obtain conductive polyaniline dispersion liquid.

Embodiment 2

[0105] Preparation of conductive polyaniline dispersion:

[0106] Add 3g of intrinsic polyaniline to 40g of 1,6-hexanediol diacrylate and 28g of isobornyl acrylate, raise the temperature to 115°C, stir at 2200rpm for 1h, then add 4.8g of dodecyl benzenesulfonic acid, continue to stir at 2200rpm for 9h, stop stirring to obtain conductive polyaniline dispersion.

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Abstract

The invention provides a poly(carbonate-ether) polyurethane acrylate, an ultraviolet-curable antistatic coating and a preparation method of the ultraviolet-curable antistatic coating, which solves a technical problem of low efficiency of the ultraviolet-curable antistatic coating in the prior art. The structure of the poly(carbonate-ether) polyurethane acrylate provided by the invention is represented by FORMULA (I) in which m and n are integers, m is neither smaller than 10 nor greater than 70, and n is neither smaller than 10 nor greater than 70. The invention also provides the ultraviolet-curable antistatic coating made of the poly(carbonate-ether) polyurethane acrylate. The ultraviolet-curable antistatic coating is completely solidified within 5-10 seconds and has an excellent antistatic performance and a durable antistatic effect, the area specific resistance is 1.14*10<4>-3.24*10<8> (ohm / sq), and the area specific resistance rise rate is 1.85-5.26% per year. Formula (I) is shown in the specification.

Description

technical field [0001] The invention relates to a poly(carbonate-ether) type polyurethane acrylate, an ultraviolet light curing antistatic coating and a preparation method thereof, belonging to the field of antistatic coatings. Background technique [0002] The damage caused by static electricity widely occurs in the fields of electronics, communications, computers, precision instruments, aerospace and military, and the losses caused are hundreds of millions. Surface coating with antistatic coating is one of the effective means to reduce the loss caused by static electricity. [0003] Antistatic coating is a functional coating with the ability to conduct electricity and eliminate accumulated static charges. The coating uses high molecular polymer as the main film-forming substance, and is uniformly mixed with antistatic additives. Static paint. In recent years, UV-curable antistatic coatings have become an important development direction in the field of antistatic coatings...

Claims

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Application Information

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IPC IPC(8): C08G18/67C08G18/66C08G18/48C08G18/44C09D175/16C09D7/12C09D5/24
Inventor 张红明李冬威高永刚王献红李季王佛松
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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