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Thermoplastic polymer matrix heat conduction composite material, and preparation method and application thereof

A technology of thermoplastic polymers and heat-conducting composite materials, which is applied in the field of polymer-based heat-conducting composite materials, can solve the problems of high heat-conducting functional fillers, high dosage ratio, and high price, so as to improve heat resistance, working temperature, and high-efficiency heat-conducting network , low cost effect

Active Publication Date: 2014-04-30
SUZHOU XINENG ENVIRONMENTAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these inorganic or fillers with special properties are expensive, and the amount accounts for a large proportion of the overall product
For example, the invention patent 201110169387.X discloses a thermoplastic polymer-based thermally conductive composite material, which has a high thermal conductivity, but its thermally conductive functional filler is still relatively high, and the process is relatively complicated and the specific gravity is large.

Method used

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  • Thermoplastic polymer matrix heat conduction composite material, and preparation method and application thereof

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Effect test

Embodiment 1

[0043] A thermoplastic polymer-based thermally conductive composite material of this embodiment, the preparation method thereof comprises the following steps:

[0044] step 1.

[0045] Pretreatment of thermally conductive powder for surface modification of hollow glass microspheres: micron-sized nitrides, micron-sized carbides, micron-sized thermally conductive metal oxides, micron-sized thermally conductive carbon powders and micron-sized thermally conductive graphite The powders were irradiated and activated by a plasma activator in the normal plasma treatment mode (1.01MPa, 30°C) for more than 1h, and then mixed to form a mixture, which was dispersed uniformly by acetone ultrasonically to obtain a mixed solution; the components in the mixture Concrete description, and the consumption (parts by weight) of this component in the mixture are as follows:

[0046] The micron-scale nitride is aluminum nitride with a particle size of 1 μm to 2 μm, and the dosage is 30 parts;

[0...

Embodiment 2

[0060] A thermoplastic polymer-based thermally conductive composite material of this embodiment, the preparation method thereof comprises the following steps:

[0061] step 1.

[0062] Pretreatment of thermally conductive powder for surface modification of hollow glass microspheres: micron-sized nitrides, micron-sized carbides, micron-sized thermally conductive metal oxides, micron-sized thermally conductive carbon powders and micron-sized thermally conductive graphite The powders were irradiated and activated by a plasma activator in the normal plasma treatment mode (1.01MPa, 30°C) for more than 1h, and then mixed to form a mixture, which was dispersed uniformly by acetone ultrasonically to obtain a mixed solution; the components in the mixture Concrete description, and the consumption (parts by weight) of this component in the mixture are as follows:

[0063] The micron-scale nitride is aluminum nitride with a particle size of 1 μm to 2 μm, and the dosage is 30 parts;

[0...

Embodiment 3

[0077] A thermoplastic polymer-based thermally conductive composite material of this embodiment, the preparation method thereof comprises the following steps:

[0078] step 1.

[0079] Pretreatment of thermally conductive powder for surface modification of hollow glass microspheres: micron-sized nitrides, micron-sized carbides, micron-sized thermally conductive metal oxides, micron-sized thermally conductive carbon powders and micron-sized thermally conductive graphite The powders were irradiated and activated by a plasma activator in the normal plasma treatment mode (1.01MPa, 30°C) for more than 1h, and then mixed to form a mixture, which was dispersed uniformly by acetone ultrasonically to obtain a mixed solution; the components in the mixture Concrete description, and the consumption (parts by weight) of this component in the mixture are as follows:

[0080] The micron-scale nitride is aluminum nitride with a particle size of 1 μm to 2 μm, and the dosage is 30 parts;

[0...

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Abstract

The invention discloses a thermoplastic polymer matrix heat conduction composite material, and a preparation method and an application thereof. The heat conduction composite material contains a matrix and a filler filled in the matrix, the matrix is a thermoplastic polymer, the filler is modified hollow glass microspheres, and the modified hollow glass microspheres are hollow glass microspheres with the surface coated with heat conduction powder, obtained after the modification treatment of the surface by the heat conduction powder. The adoption of a thermoplastic plastic as the matrix realizes the good dispersion of the heat conduction powder and guarantees the processing performances of the material; and the adoption of the reasonable matching of the modified hollow glass microspheres and the heat conduction powder makes the material have the advantages of light weight, corrosion resistance, high heat conduction efficiency, good mechanical properties, easy machine shaping, no pollution, low cost, high precision, long life, good electric insulation and the like, so the material can be used in electronic and electric appliance product radiating fins, LED light fixture heat radiation pedestals, bearing heat radiation layers, and other fields having high heat conduction requirements.

Description

[0001] technical field [0002] The invention relates to the technical field of polymer-based heat-conducting composite materials, in particular to thermoplastic polymer-based heat-conducting composite materials, in particular to a thermoplastic polymer-based heat-conducting composite material filled with hollow glass microspheres modified on the surface of heat-conducting powder and its preparation methods and applications. Background technique [0003] Thermally conductive materials are widely used in heat exchange engineering, heating engineering, electronic information and other fields. [0004] Traditional heat-conducting materials are mostly metal materials with good thermal conductivity. However, due to the problems of poor corrosion resistance, high electrical conductivity, high density and high manufacturing energy consumption of metal materials, their applications in chemical, electronic and other fields are limited. [0005] Most polymer materials have the advant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L67/02C08L23/12C08K13/06C08K9/10C08K9/02C08K9/06C08K9/04C08K7/28C08K3/28C08K3/34C08K3/22C08K3/04
CPCC08K7/28C08K9/02C08K9/06C08K9/10C08K2201/003C08L77/02C08L77/06C08L67/02C08L23/12
Inventor 林湖彬杜崇铭李华军
Owner SUZHOU XINENG ENVIRONMENTAL SCI & TECH CO LTD
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