Nano-composite polypropylene composite material with high thermal conductivity, and preparation method thereof

Abstract

The invention discloses a nano-composite polypropylene composite material with high thermal conductivity. The nano-composite polypropylene composite material comprises, by mass, 80-95% of polypropylene and 5-20% of hyperbranched aromatic polyamide grafted nano zeolite particles. The invention also discloses a preparation method of the high-thermal-conductivity nano-composite polypropylene. The hyperbranched aromatic polyamide grafted nano zeolite particles and the polypropylene are used as raw materials to obtain the high-thermal-conductivity functionalized nano zeolite particle / polypropylene polymer composite material, the composite material has very high thermal conductivity, and compared with a traditional filler direct blending method, the thermal conductivity and the heat engine performance are obviously improved. The polypropylene composite material disclosed by the invention has excellent heat-conducting property, and the heat conductivity and mechanical property of a polymer matrix can be greatly improved under the condition of low heat-conducting filler mixing amount, so that the polypropylene composite material has wide application value in the fields of machinery, cables, chemical engineering and the like. The preparation method disclosed by the invention is simple and easy to operate, strong in controllability and capable of realizing large-scale production.

Description

technical field [0001] The invention belongs to the technical field of electrical insulating materials, and relates to a nanocomposite polypropylene composite material with high thermal conductivity and a preparation method thereof. Background technique [0002] In recent years, with the continuous development of industry and technology, ordinary polymer materials are difficult to meet the needs of the future development of electric power and electronics industries, especially the sharp increase in operating frequency, the rapid accumulation and increase of heat generated by electronic equipment, and the temperature of the working environment. Rapidly changing to high temperature direction, in order to ensure the normal operation of electronic components with high reliability for a long time, it is necessary to prevent the continuous rise of the working temperature, so the ability to dissipate heat in time becomes an important factor affecting its service life, and develop po...

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Problems solved by technology

[0002] In recent years, with the continuous development of industry and technology, ordinary polymer materials are difficult to meet the needs of the future development of electric power and electronics industries, especially the sharp increase in operating frequency, the rapid accumulation and increase of heat generated by electronic equipment, and the temperature of the working environment. Rapidly changing to high temperature direction, in order to ensure the normal operation of electronic components with high reliability for a long time, it is necessary to prevent the continuous rise of the working temperature, so the ability to dissipate heat in time becomes an important factor affecting its service life, and develop polymer materials with high thermal conductivity It is an urgent problem that researchers need to solve

[0003] Polypropylene has the advantages of light weight, corrosion resistance, easy processing, good mechanical balance, and low price. The second largest general-purpose plastic of ethylene, but the thermal conductivity of polypropylene is low, only 0.24W / m·k, and the heat dissipation performance is poor, which is difficult to meet the rapid development of modern industry and technology

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