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High-thermal-conductivity liquid crystal polymer material and preparation method thereof

A liquid crystal polymer, high thermal conductivity technology, applied in the field of liquid crystal polymer composite materials, can solve the problems of reducing work efficiency and reliability, shortening service life, aging failure of polymer materials, etc. Improve thermal conductivity and good mechanical properties

Pending Publication Date: 2022-02-18
GUANGDONG GERUI NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of electrical equipment in the direction of large capacity, high power density, and small and light weight, the heat generated per unit volume during its operation will increase significantly. If the heat cannot be transferred out in a timely and efficient manner, the accumulated Heat and the resulting temperature rise will accelerate the aging and failure of polymer materials, reduce work efficiency and reliability, and shorten the service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A liquid crystal polymer material with high thermal conductivity, calculated by weight, includes the following components:

[0050] 90 parts of liquid crystal epoxy resin;

[0051]12 parts of graphene modified polyaniline derivatives;

[0052] 15 parts of silane-modified boron nitride nanosheets;

[0053] 7 parts of inorganic filler;

[0054] Antioxidant 0.1 part;

[0055] 0.1 parts of heat stabilizer;

[0056] 0.1 part of flame retardant.

[0057] Wherein, the graphene-modified polyaniline derivative structural formula is:

[0058] wherein R is hydrogen.

[0059] Wherein, the preparation method of the graphene-modified polyaniline derivatives comprises the following steps: (1) at room temperature, add 0.2mol aniline monomers to 1mol / L HCl solution and stir for 20min, then add 0.2mol graphene powder, continue to stir for 50min; (2) After reaching temperature equilibrium in an ice bath at 0°C, dissolve 0.1mol ammonium sulfate in 150mL of 1mol / L HCl solution and ...

Embodiment 2

[0079] A liquid crystal polymer material with high thermal conductivity, calculated by weight, includes the following components:

[0080] Liquid crystal polyamide resin 95;

[0081] 12 parts of graphene modified polyaniline derivatives;

[0082] Silane-modified boron nitride nanosheets 17;

[0083] Inorganic filler 8;

[0084] Antioxidant 0.2;

[0085] Heat stabilizer 0.2;

[0086] Flame retardant 0.2.

[0087] Wherein, the graphene-modified polyaniline derivative structural formula is:

[0088] wherein R is hydrogen.

[0089] Wherein, the preparation method of the graphene-modified polyaniline derivatives comprises the following steps: (1) at room temperature, add 0.3mol aniline monomers to 1mol / L HCl solution and stir for 30min, then add 0.3mol graphene powder, continue to stir for 30-60min; (2) After reaching temperature equilibrium in an ice bath at 3°C, dissolve 0.2mol ammonium sulfate in 200mL of 1mol / L HCl solution and slowly add it to the aniline monomer, (3...

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Abstract

The invention discloses a high-thermal-conductivity liquid crystal polymer material and a preparation method thereof. The high-thermal-conductivity liquid crystal polymer material comprises the following components, in parts by weight, 80-100 parts of liquid crystal polyamide or liquid crystal epoxy resin, 10-15 parts of a graphene modified polyaniline derivative, 10-20 parts of silane modified boron nitride nanosheets, 5-10 parts of an inorganic filler, 0.1-0.2 part of an antioxidant, 0.1-0.2 part of a heat stabilizer and 0.1-0.2 part of a flame retardant. The high-thermal-conductivity liquid crystal polymer material prepared by the method has a certain electrical conductivity, can have a good anti-static effect, and can be widely applied to electronic shells and products with high heat dissipation requirements.

Description

technical field [0001] The invention relates to the technical field of liquid crystal polymer composite materials, in particular to a liquid crystal polymer material with high thermal conductivity and a preparation method thereof. Background technique [0002] Liquid crystal polymer (LCP) materials are a class of polymers with excellent properties developed at present. It is used to prepare special fiber materials and special engineering plastics. However, most polymer materials have extremely low thermal conductivity and are thermal insulators. In the prior art, thermal conductivity is usually improved by improving polymer materials, thereby expanding the application range of polymer materials. With the development of electrical equipment in the direction of large capacity, high power density, and small and light weight, the heat generated per unit volume during its operation will increase significantly. If the heat cannot be transferred out in a timely and efficient mann...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L77/00C08L79/02C08K9/06C08K3/38
CPCC08L63/00C08L77/00C08K2003/385C08K2201/011C08L79/02C08K9/06C08K3/38
Inventor 陈扬友郑宇航郑子华梁卫涛郑飞飞
Owner GUANGDONG GERUI NEW MATERIALS CO LTD
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