A kind of conductive heat conduction wear-resistant PVC pipe and preparation method thereof

Abstract

The invention discloses a conductive and thermally conductive wear-resistant PVC pipe and a preparation method thereof. The electrically conductive, thermally conductive and wear-resistant PVC pipe comprises the following components in parts by weight: 100 parts of PVC resin, 5-20 parts of chlorine-containing coupling agent modified nano-silica, and 5-20 parts of chlorine-containing coupling agent modified conductive filler . The present invention uses chlorine-containing coupling agent to modify the surfaces of nano-silica and conductive filler respectively, and uses the modified nano-silica and conductive filler as fillers of PVC pipes, so that the conductive filler and modified nano-silicon can be modified. Silica has good dispersibility in PVC resin, forming a dense network of electrical and thermal conductivity on its surface, improving the thermal conductivity, electrical conductivity and wear resistance of the material. The PVC pipe prepared by the invention has huge potential application value in the aspects of ground grid conduction, power grid conduit and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a conductive, thermally conductive and wear-resistant PVC pipe and a preparation method thereof. Background technique [0002] PVC pipe has the characteristics of strong corrosion resistance, high strength, and good rigidity. Therefore, it is widely used in technical fields such as water supply, building drainage, sewage, and chemical industry. To a large extent, it has affected the application of PVC pipes in ground grid conduction, power grid conduits, etc. Therefore, it is necessary to improve its wear resistance, electrical conductivity and thermal conductivity by adding fillers. [0003] Silica has high hardness and good wear resistance, and is widely used as filler in glass products, conductive devices, conductive coatings, electronic packaging materials, precision ceramic materials, pipes and other plastics. However, nano-silica has defects such as small partic...

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Problems solved by technology

Chinese invention patent CN103122179 A uses copper powder blended modified silica as a conductive filler, which has good electrical conductivity, but the filler density is too high, and the agglomeration of silica itself is relatively large; Chinese invention patent CN103897446 A directly uses silica Silicon and graphene are uniformly mixed as a conductive filler, which improves the density compared with metal conductive powder, while nano-silica and graphene particles themselves have a greater agglomeration, and nano-silica / graphene oxide or metal powder is simply mixed and combined. Can not improve the dispersion of fillers well, it is difficult to better improve the electrical and thermal conductivity and wear resistance of composite materials

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