Conductive grapheme and organic silicon resin composite material

Abstract

The invention relates to a conductive grapheme and organic silicon resin composite material, and belongs to the technical field of conductive materials. The conductive grapheme and organic silicon resin composite material provided by the invention is prepared by adding grapheme and methylphenyl silicon resin into a ball mill to grind and mixing to uniformity, wherein the weight ratio of the grapheme to the methylphenyl silicon resin is 1:20-500. According to the conductive grapheme and organic silicon resin composite material, the organic silicon resin becomes conductive from insulating, so that the composite material has good conductive performance of the grapheme and excellent weather fastness and heat resistance of the organic silicon resin; furthermore, the composite material adopts the specific organic silicon resin, namely the methylphenyl silicon resin, and a specific ratio, thus further improving the weather fastness and the heat resistance, being easy to solidify and capable of being used for preparing conductive paint, conductive film and other conductive materials. In addition, the conductive grapheme and organic silicon resin composite material is simple in preparation method and applicable to industrial production, and effectively saves energy consumption and reduces cost.

Description

technical field [0001] The invention relates to a conductive composite material, more specifically, the invention relates to a graphene silicone resin conductive composite material, which belongs to the technical field of conductive materials. Background technique [0002] Silicone resin is a thermosetting resin with a highly cross-linked network structure. Its most prominent properties are excellent thermo-oxidative stability and excellent electrical insulation properties. In addition, silicone resin also has excellent weather resistance such as moisture resistance, water resistance, cold resistance, and ozone resistance, but its solvent resistance is poor. Therefore, silicone resins are mainly used in the preparation of insulating varnishes and hydrophobic coatings. [0003] Graphene is currently the thinnest but also the hardest nanomaterial in the world. It is almost completely transparent and only absorbs 2.3% of light; its thermal conductivity is as high as 5300W / m·K...

AI Technical Summary

Problems solved by technology

[0008] The above two patents disclose two kinds of conductive adhesives, which are a kind of rubber with thick coating and heavy weight, which are not suitable for most applications that require light and thin materials; moreover, conductive adhesives need to add curing agents and accelerators to achieve curing purposes. It is cumbersome; in addition, the heat resistance of the above two conductive adhesives is still not good