Heat-conducting and insulated composite material based on carbon nanotubes and preparation method for composite material

A technology of carbon nanotubes and composite materials, which is applied in the field of thermally conductive and insulating composite materials based on carbon nanotubes and its preparation, which can solve the problems of poor fluidity, decreased mechanical properties, and inability to transfer composite materials, and achieve good insulation performance.
CN104861298AInactive Publication Date: 2015-08-26SOUTHWEST UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST UNIVERSITY
Publication Date
2015-08-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a heat-conducting and insulated composite material based on carbon nanotubes and a preparation method for the composite material. The composite material comprises the following components in parts by weight: 100 parts of a thermoplastic polymer, 10-70 parts of heat-conducting inorganic fillers, 1-7 parts of the carbon nanotubes, an antioxidant and a processing aid. The ratio of the inorganic fillers to the carbon nanotubes is determined and the carbon nanotubes with relatively large length-diameter ratios are connected with a plurality of isolated heat-conducting inorganic filler granules in the polymer, so that the carbon nanotubes and the inorganic filler granules form a three-dimensional network heat-conducting channel in the polymer; at the same time, the plurality of carbon nanotubes can be adsorbed on the same heat-conducting inorganic filler granule without contact, so that the composite material has relatively good mechanical property, heat-conducting property and insulation property.
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Description

technical field

[0001] The invention belongs to the field of polymer materials, and in particular relates to a heat-conducting and insulating composite material based on carbon nanotubes and a preparation method thereof. Background technique

[0002] With the simultaneous development of science and technology and industry, people have put forward higher requirements for materials. In addition to thermal conductivity, materials are also required to have light weight, excellent forming and processing performance, chemical corrosion resistance, excellent electrical insulation performance, high impact resistance, and mechanical properties. and excellent fatigue properties. Compared with metal materials, polymer materials have the advantages of low price, corrosion resistance, easy molding, electrical insulation, and good mechanical properties. They can also be recycled for secondary molding or surface treatment, which can further reduce the cost of polymer material products. Ho...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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