Zero-VOC (volatile organic compound) water-based heat-conducting insulating resin composition and preparation method thereof

The invention relates to a zero-VOC (volatile organic compound) water-based heat-conducting insulating resin composition and a preparation method thereof. The zero-VOC water-based heat-conducting insulating resin composition is prepared from the following raw materials in parts by mass: 40-50 parts of water-based epoxy resin, 2-4 parts of aniline curing agent, 1-3 parts of dispersing agent, 35-50 parts of heat-conducting filler, 0.1-0.3 part of defoaming agent and 3-5 parts of modified carbon black. Wherein after the surface of the carbon black is grafted with alkyl, the compatibility of the carbon black and epoxy resin is improved, the phenomena of agglomeration and non-uniform dispersion of the carbon black are reduced, and the heat-conducting and insulating properties of the composite material are further improved; and on the other hand, the water-borne epoxy resin, the aniline curing agent and the carbon black are adopted to play a role of solid filler, so that the solid content of the resin is relatively