Antistatic heat-conducting composite material and preparation method thereof

Abstract

The invention discloses an antistatic heat-conducting composite material. The antistatic heat-conducting composite material is prepared from the following raw materials in parts by weight: 3 to 4 parts of polyethylene-diglycol adipate glycol, 10 to 13 parts of nano aluminum oxide, 1 to 2 parts of 3,5-diaminobenzoic acid, 0.3 to 0.7 part of pyridine, 2 to 3 parts of triphenyl phosphite, 0.1 to 0.2 part of lithium chloride, 0.6 to 1 part of a silane coupling agent kh560, 0.7 to 1 part of neodymium acetylacetonate, 1.6 to 2 parts of methylhexahydrophthalic anhydride, 80 to 90 parts of epoxy resin 6101, 1 to 2 parts of aluminum potassium sulfate, 0.4 to 1 part of triethanolamine oleic soap, 5 to 7 parts of dibutyl maleate, 0.6 to 1 part of ricinoleic acid, 2 to 3 parts of polyacrylamide, 2 to 4 parts of potassium zirconium carbonate and 0.6 to 1 part of hexabromocyclododecane. According to the antistatic heat-conducting composite material disclosed by the invention, the triethanolamine oleic soap and the like are added, so that the antistatic performance of the finished-product composite material can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of heat-conducting materials, in particular to an antistatic heat-conducting composite material and a preparation method thereof. Background technique [0002] Epoxy resin has excellent mechanical properties, electrical properties, bonding properties and thermal stability, and has been widely used in aerospace, electronic and electrical fields. There are many kinds of epoxy resins, and the alicyclic epoxy resin is selected in this work. Since the epoxy group in the molecular structure of the alicyclic epoxy resin does not come from propylene oxide, the epoxy group is directly connected to the alicyclic ring, so Compared with bisphenol A epoxy resin, cycloaliphatic epoxy resin has many advantages such as good thermal stability, excellent electrical insulation performance and weather resistance, and high safety. However, the thermal conductivity of epoxy resin is low (0.23 W / m K), and the heat dissipation per...

AI Technical Summary

Problems solved by technology

However, due to the small particle size and high surface energy of nano-alumina particles, they are in a thermodynamically unstable state and are easily aggregated into clusters, which affects the practical application effect of nano-alumina particles.