Preparation method of composite with high dielectric property

A composite material and high dielectric technology, which is applied in the field of preparation of high dielectric performance composite materials, can solve the problems of development and application limitations, achieve uniform cross-linked structure, good compatibility, and overcome the effect of adhesion decline

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

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Problems solved by technology

The importance of flame retardants in modern society cannot be ignored, but with the introduction of a series of...

Method used

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Embodiment 1

[0023] A method for preparing a composite material with high dielectric properties, comprising the following steps:

[0024] (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 ;

[0025] (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 s...

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Abstract

The invention relates to a preparation method of a composite with a high dielectric property. The preparation method comprises steps as follows: high dielectric filler is added to a bifunctional epoxysystem 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 isobtained; the solid content of the glue liquor is adjusted to be 60% with propylene glycol methyl ether acetate, glass cloth is soaked in the glue liquor, and the composite with the high dielectric property is obtained after heating and drying. The composite 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 high dielectric performance composite material. 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 UL94...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L71/02C08L79/08C08K13/04C08K7/14C08K3/28C08K3/00
CPCC08K2003/2227C08K2201/011C08L63/00C08L2201/02C08L2201/08C08L2205/025C08L2205/035C08L71/02C08L79/08C08K13/04C08K7/14C08K3/28C08K3/00C08K3/22
Inventor 王志龙韩建梁国正
Owner 嘉兴立一新材料股份有限公司
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