Insulation engineering plastic with high heat-conducting property and preparation method thereof

A technology of insulation engineering and high thermal conductivity, which is applied in the field of polymer composite materials, can solve the problems of heat dissipation of electronic equipment, reduce mechanical properties and insulation performance, and cannot meet high thermal conductivity, high flame retardancy, etc., and achieve quality Lightweight, reduced manufacturing cost, and low density

Active Publication Date: 2014-02-12
惠州市华聚塑化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the vast majority of polymer materials themselves are heat-insulating materials, the existing insulating engineering plastics made of polymer materials generally have disadvantages such as poor thermal conductivity and low mechanical properties, which limit their application in the electronic and electrical industries. application
It is possible to improve the thermal conductivity of insulating engineering plastics by modifying the thermal conductivity, but it is easy to reduce its mechanical properties and insulation properties while improving the thermal conductivity, and the production cost is high, which cannot meet the requirements of high thermal conductivity and high flame retardant applications. , especially not a good solution to the heat dissipation problem of electronic equipment

Method used

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  • Insulation engineering plastic with high heat-conducting property and preparation method thereof
  • Insulation engineering plastic with high heat-conducting property and preparation method thereof
  • Insulation engineering plastic with high heat-conducting property and preparation method thereof

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preparation example Construction

[0059] The preparation method of the present invention comprises the following steps:

[0060] Step 1: Take the following components in parts by weight: 100 parts of matrix resin, 25-350 parts of mica powder, 25-350 parts of insulating and thermally conductive filler, 30-60 parts of flame retardant and 0-5 parts of processing aid;

[0061] Step 2: Add the matrix resin and processing aids into the mixer, and keep stirring for 3 to 8 minutes;

[0062] Step 3: Add mica powder and additives to the mixer, and keep stirring for 3 to 6 minutes;

[0063] Step 4: Add flame retardant to the mixer and keep stirring for 2 to 4 minutes;

[0064] Step 5: Add the mixture and insulating and heat-conducting filler into the main feeding and side feeding hoppers of the extruder respectively, extrude and granulate, and inject to form, so as to obtain the insulating engineering plastic with high heat-conducting performance.

[0065] Preferably, the insulating and thermally conductive filler is a...

Embodiment 1

[0069] An insulating engineering plastic with high thermal conductivity is prepared by the following method: add PA6 resin and aminosilane coupling agent to a mixer, and stir for 5 minutes; then add mica powder and other processing aids to the mixer, and continue to stir for 5 minutes; Then add the flame retardant to the mixer and stir for 3 minutes; add the mixture to the main feeding hopper of the twin-screw extruder, and add the insulating and thermally conductive filler magnesium oxide to the side feeding hopper of the twin-screw extruder; extrude and granulate, The temperature is set at 230°C-260°C to prepare insulating and heat-conducting PA6 engineering plastic particles, which are injected and molded to measure the performance of insulating engineering plastics.

Embodiment 2～15

[0071] The preparation method is the same as that of Example 1, the only difference being that the components and dosage are different, please refer to Table 1 for details.

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Abstract

The invention relates to insulation engineering plastic with high heat-conducting property and a preparation method thereof. The insulation engineering plastic comprises the following components in parts by weight: 100 parts of matrix resin, 25-350 parts of mica powder, 25-350 parts of insulation heat-conducting filler, 30-60 parts of flame retardant and 0-5 parts of processing agent. The preparation method comprises the steps of mixing mica powder, a flame retardant and matrix resin and pelleting by virtue of a double screw extruder, wherein an insulation heat-conducting filler is added in an extruding process from the side, so that wear of the heat-conducting filler to equipment is reduced. The prepared insulation heat-conducting engineering plastic has excellent heat-conducting property and excellent mechanical property, can meet the requirements of application occasions on high heat-conducting property and high flame retardance and can be used for preparing an LED (light-emitting-diode) lamp heat sink.

Description

technical field [0001] The invention relates to the field of polymer composite materials, in particular to an insulating engineering plastic with high thermal conductivity and a preparation method thereof. Background technique [0002] With the gradual enhancement of people's awareness of environmental protection, the research and development and production of various environmental protection products have also attracted more and more attention. For example, the new energy-saving electroluminescent diode (LED) in emerging industries has the advantages of small size, high luminous efficiency, low energy consumption, high brightness, and environmental protection. Therefore, its research and use have attracted the attention of the international community. [0003] Insulating engineering plastics can be used to make LED components, such as housings, heat sinks, substrates, reflectors, inserts and other components. Insulating engineering plastics with thermal conductivity can re...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/06C08L67/02C08L81/02C08K13/02C08K3/34C08K3/22C08K3/36C08K5/134C08K5/526
CPCC08L67/02C08L77/02C08L77/06C08L81/02C08L2201/02C08L2203/20C08L2205/02C08L2205/03C08L2205/035C08L25/18C08K13/02C08K3/34C08K2003/222C08K3/2279
Inventor 冉进成刘典典官炳桂官炳荣
Owner 惠州市华聚塑化科技有限公司
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