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High-heat conductivity PBT composite material and preparation method thereof

A composite material, high thermal conductivity technology, applied in the field of high thermal conductivity PBT composite material and its preparation, can solve problems that have not been seen in reports, and achieve the effect of improving compatibility

Inactive Publication Date: 2017-03-08
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Calcium sulfate whiskers are used to modify PBT to optimize the physical properties of PBT, and MgO is used as a thermal conductive material to prepare a PBT material with high thermal conductivity and excellent mechanical properties. This method has not been reported so far.

Method used

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  • High-heat conductivity PBT composite material and preparation method thereof
  • High-heat conductivity PBT composite material and preparation method thereof
  • High-heat conductivity PBT composite material and preparation method thereof

Examples

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preparation example 1

[0032] The preparation method of described treated magnesia, comprises the following steps:

[0033] 1) After drying the magnesium oxide in a drying oven with a constant temperature of 100-120°C for 8-10 hours, add it to a mixer and mix for 20-30 minutes.

[0034] 2) Add the silane coupling agent KH550 into the mixer and continue mixing for 30-40 minutes.

[0035] The mass ratio of the magnesium oxide to the coupling agent is 12:1; the temperature of the mixer is 90-120° C., and the rotation speed is 120-160 r / min.

preparation example 2

[0037] The preparation method of described treated magnesia, comprises the following steps:

[0038] 1) After drying the magnesium oxide in a drying oven with a constant temperature of 100-120°C for 8-10 hours, add it to a mixer and mix for 20-30 minutes.

[0039] 2) Add the silane coupling agent KH550 into the mixer and continue mixing for 30-40 minutes.

[0040] The mass ratio of the magnesium oxide to the coupling agent is 12:3; the temperature of the mixer is 90-120° C., and the rotation speed is 120-160 r / min.

preparation example 3

[0042] The preparation method of described treated magnesia, comprises the following steps:

[0043] 1) After drying the magnesium oxide in a drying oven with a constant temperature of 100-120°C for 8-10 hours, add it to a mixer and mix for 20-30 minutes.

[0044] 2) Add the silane coupling agent KH550 into the mixer and continue mixing for 30-40 minutes.

[0045] The mass ratio of the magnesium oxide to the coupling agent is 16:1; the temperature of the mixer is 90-120° C., and the rotation speed is 120-160 r / min.

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Abstract

The invention relates to a high-heat conductivity PBT composite material and a preparation method thereof. The composite material is prepared from the following components in parts by weight: 60-80 parts of PBT, 8-12 parts of a heat conduction filler, 20-30 parts of calcium sulfate whiskers, 0.1-0.5 part of an antioxidant and 0.1-0.3 part of a lubricant, wherein the heat conduction filler is treated magnesium oxide. After MgO is subjected to surface treatment, the dispersity of the MgO in a PBT resin matrix is improved, the surface activation energy of the MgO is reduced, adhesion between the MgO and the PBT resin matrix is enhanced, interfacial adhesion between the filler and the resin matrix is improved, the heat resistance at the interface is reduced, and a heat conductivity coefficient of the composite material is increased.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a PBT composite material with high thermal conductivity and a preparation method thereof. Background technique [0002] Calcium sulfate whiskers, as a new type of inorganic fibrous reinforcing filler, have been extensively researched and promoted. In recent years, with the reduction of the price of calcium sulfate whiskers, they occupy an increasingly important position in the research of filling modification in polymers. Due to the fine structure of calcium sulfate whisker itself, its highly ordered atomic arrangement structure makes its crystal structure close to a perfect crystal structure, and the use of calcium sulfate whiskers to modify polymers can make materials have more excellent mechanical properties. [0003] Calcium sulfate whiskers are used to modify PBT to optimize the physical properties of PBT, and MgO is used as a thermal conductive material to prepar...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K13/06C08K9/06C08K3/22C08K7/08C08K5/098
CPCC08K13/06C08K3/22C08K5/098C08K7/08C08K9/06C08K2003/222C08K2201/003C08K2201/014C08L67/02
Inventor 刘凯徐志海黄家奇王添琪
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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