Heat-conducting polypropylene material, and preparation method and application thereof

Abstract

The invention discloses a heat-conducting polypropylene material, and a preparation method and application thereof. The heat-conducting polypropylene material comprises, by weight, 60-83 parts of first polypropylene resin, 4-10 parts of second polypropylene resin, 2-10 parts of polyethylene resin, 1-5 parts of a compatilizer, 3-8 parts of foam metal, 10-20 parts of a heat-conducting filler and 0.2-1 part of a passivator. The foam metal, the heat-conducting filler and the melt-blown polypropylene are added at the same time to modify the polypropylene material, and under the synergistic effect of the foam metal, the heat-conducting filler and the melt-blown polypropylene, not only is the heat-conducting property of the material greatly improved, but also the material is light, and meanwhile, the material has better electrical insulation property and mechanical property.

Description

Technical field [0001] The present invention belongs to the field of modified plastics, and more particularly to a thermally conductive polypropylene material and a preparation method thereof. Background technique [0002] The thermally conductive materials have a wide range of applications in various fields of the defense industry and the national economy. The traditional thermally conductive materials are generally metal materials, but the application is limited due to the corrosion resistance difference of the metal material. Polymer materials have the characteristics of light, corrosion resistance, easy processing, good electrical insulation performance, excellent mechanical properties, etc., and currently play an important role in the fields of information industry. However, due to the vast majority of polymer materials, the thermal conductivity is extremely low, for example, the thermal conductivity of polypropylene (PP) is only about 0.2 w / (m · k), and the thermal conduc...

AI Technical Summary

Problems solved by technology

However, due to the excessive amount of heat-conducting medium that needs to be added in this method, the mechanical properties of the material are greatly reduced.

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