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Thermal conductive resin composition and preparation method thereof

A technology of thermally conductive resin and composition, applied in chemical instruments and methods, materials for heat exchange, etc., can solve problems such as deterioration of comprehensive mechanical properties of materials, and achieve good melt flow performance, high melt flow performance, and high modulus. The effect of volume and toughness

Inactive Publication Date: 2018-04-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is the problem that the amount of high thermal conductive fillers in the prior art leads to the deterioration of the comprehensive mechanical properties of the material. A thermal conductive resin composition is provided

Method used

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  • Thermal conductive resin composition and preparation method thereof
  • Thermal conductive resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Surface treatment of thermally conductive filler: Weigh 20 parts of chopped carbon fiber (length 5mm, diameter 10μm) and 10 parts of ethanol solution with silane coupling agent concentration of 2.0%, stir and mix them fully in a stainless steel vessel, dry naturally and then dry at 100°C After 4 hours, the thermally conductive filler composition A1 was obtained.

[0039] Preparation of thermally conductive resin composition: polycarbonate pellets (melt index 12.3g·10min -1 )80 parts were dried at 105°C for 6 hours under vacuum conditions, and A1, 0.8 parts of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester 1010, white oil 0.8 parts, placed in a high-speed mixer and mixed thoroughly for 2 minutes. The mixed material was introduced into a twin-screw extruder to be melted and extruded, and granulated to obtain a thermally conductive resin composition B1. The temperature of the 1st to 9th section of the twin-screw extruder and the die mout...

Embodiment 2

[0043] Thermally conductive filler surface treatment: Weigh 40 parts of chopped carbon fiber (length 5mm, diameter 10μm) and 10 parts of ethanol solution with silane coupling agent concentration of 4.0%, stir and mix fully in a stainless steel vessel, dry naturally and then dry at 100°C After 4 hours, a thermally conductive filler composition A2 was obtained.

[0044] Preparation of thermally conductive resin composition: polycarbonate pellets (melt index 12.3g·10min -1 ) 60 parts were dried under vacuum at 105°C for 6 hours, then mixed with A2, 0.8 parts of 1010, and 0.8 parts of white oil in a high-speed mixer for 2 minutes. The mixed material was introduced into a twin-screw extruder to be melted and extruded, and granulated to obtain a thermally conductive resin composition B2. The temperature of the 1st to 9th section of the twin-screw extruder and the die mouth are 220°C, 240°C, 260°C, 280°C, 280°C, 280°C, 280°C, 280°C, 280°C, 270°C, and the screw speed is 150 rpm / min...

Embodiment 3

[0048] Surface treatment of thermally conductive filler: Weigh 30 parts of chopped carbon fiber (length 5mm, diameter 10μm), flake graphene YH5 (particle size D 50 : 150 μm, thickness 80nm) 5 parts and 10 parts of silane coupling agent concentration 3.5% ethanol solution were fully stirred and mixed in a stainless steel vessel, dried naturally and then dried at 100° C. for 4 hours to obtain thermally conductive filler composition A3.

[0049] Preparation of thermally conductive resin composition: polycarbonate pellets (melt index 12.3g·10min -1 ) 65 parts were dried under vacuum at 105°C for 6 hours, then mixed with A3, 0.8 parts of 1010, and 0.8 parts of white oil in a high-speed mixer for 2 minutes. The mixed material was introduced into a twin-screw extruder to be melted and extruded, and granulated to obtain a thermally conductive resin composition B3. The temperature of the 1st to 9th section of the twin-screw extruder and the die mouth are 220°C, 240°C, 260°C, 280°C, 28...

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Abstract

The invention relates to thermal conductive resin composition and a preparation method thereof and mainly solves the problem that the comprehensive mechanical performance of a material become poor dueto high use amount of thermal conductive filler in the prior art. The technical problem is better solved by means of the technical scheme as follows: the thermal conductive resin composition is prepared from components in parts by weight as follows: A) 40-80 parts of thermoplastic resin; B) 10-45 parts of thermal conductive filler composition; C) 0.01-1 part of an interface modifier; D) 0.1-10 parts of other filler, wherein the thermal conductive filler composition is at least one of thermal conductive filler with the length-to-diameter ratio larger than or equal to 1 or thermal conductive filler with the length-to-thickness ratio larger than or equal to 1. The preparation method can be used for industrial production.

Description

technical field [0001] The invention belongs to polymer composite materials, and relates to a heat-conducting resin composition and a preparation method thereof. The thermally conductive resin composition is suitable for electrical, electronic and heat dissipation components. Background technique [0002] Thermally conductive materials are often used in heat exchange, heat dissipation, electronics and electrical industries. In recent years, the trend of light weight, miniaturization and high performance of electronic and electrical equipment is obvious, and the heat generation of its heating components is also increasing. Excessive heat degrades the performance of the product, and it is very important to dissipate the heat in time. To improve the heat dissipation performance of heat-generating devices, it is particularly urgent to develop thermally conductive materials with high thermal conductivity and cost advantages. [0003] Compared with traditional metals, ceramics ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L91/06C08L35/06C08K9/06C08K7/06C08K3/04C08K7/00C09K5/14
CPCC08K2201/014C08K2201/016C08L69/00C08L2201/08C08L2203/20C08L2205/03C09K5/14C08L91/06C08K9/06C08K7/06C08L35/06C08K3/04C08K7/00
Inventor 于志省白瑜王巍詹姆斯·洪学·王
Owner CHINA PETROLEUM & CHEM CORP