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Preparation method of pouring material with high dielectric property

A casting material and high-dielectric technology, which is applied in the field of preparation of high-dielectric performance casting materials, can solve problems such as development and application limitations, and achieve the effects of uniform cross-linking structure, good mechanical properties and reasonable composition.

Inactive Publication Date: 2018-08-24
嘉兴立一新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The importance of flame retardants in modern society cannot be ignored, but with the introduction of a series of environmental protection policies in Europe, their development and application have been restricted to varying degrees

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing a casting material with high dielectric properties, comprising the following steps:

[0022] (1) Disperse manganese nitrate hexahydrate, cobalt nitrate hexahydrate and ferric chloride in deionized water, stir at 110 ° C for 45 minutes to obtain a precursor system; then filter the precursor system to obtain a precursor; then pass the precursor through Drying and calcination to obtain high dielectric fillers; the drying is drying at 105°C under vacuum; the calcination is calcination at 1150°C for 3 hours under a hydrogen / argon mixed atmosphere; the volume ratio of hydrogen / argon is 0.5:10 ;

[0023] (2) At room temperature, mix 3,3'-dithiodipropionic acid, dichloromethane, and acetone; then add pyridinium m-nitrobenzenesulfonate and diphenyl phosphate, stir for 10 minutes, then add methylbutyne Alcohol, after stirring for 35 minutes, add 2,3-epoxycyclopentyl cyclopentyl ether, after stirring for 50 minutes, add benzylidene aniline, and continue sti...

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PUM

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Abstract

The invention relates to a preparation method of a pouring material with a high dielectric property. The preparation method comprises steps as follows: high dielectric filler is added to a bifunctional epoxy system and stirred at 130 DEG C for 20 min, a monofunctional epoxy system and nano alumina particles are added at the temperature of 95 DEG C, the mixture is stirred for 130 min, and a glue liquor is obtained; the glue liquor is subjected to vacuum defoamation and added to a mold, and the pouring material with the high dielectric property is obtained after hot-pressing curing. The pouringmaterial has excellent flame retardance and heat resistance and particularly has the outstanding dielectric constant.

Description

technical field [0001] The invention belongs to the technical field of electronic composite materials, and in particular relates to a preparation method of a casting material with high dielectric performance. Background technique [0002] With the continuous development of science and technology, the application of polymer matrix composites is becoming more and more extensive. At the same time, various application fields also put forward higher requirements for different materials, such as high temperature resistance, ablation resistance, and high dielectric strength. Due to the further demand for size miniaturization and high energy storage density, giant dielectric constant materials have always been a hot spot in the research of modern electronic devices such as capacitors and filters. With the emphasis on flame retardancy, products are required to have flame retardancy. Flame retardancy has grade requirements, which are UL94 V-2, UL94 V-1 and UL94 V-0 grades, of which U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L79/08C08L71/02C08K3/22C08G59/22C08G59/24
CPCC08G59/223C08G59/245C08K2003/2227C08K2201/011C08L63/00C08L2201/02C08L2201/08C08L2203/20C08L2205/03C08L79/08C08L71/02C08K3/22
Inventor 韩建王志龙梁国正
Owner 嘉兴立一新材料股份有限公司
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