Flame-retardant diene electronic packaging composite material and preparation method thereof

The invention provides a flame-retardant diolefin electronic packaging composite material which is prepared from the following components in parts by mass: 45-50 parts of flame-retardant filler, 12-16 parts of halogen-free flame retardant, 31-37 parts of diolefin raw material, 1-2 parts of antioxidant, 1-2 parts of flexibilizer and 0.25-0.5 part of coupling agent. The preparation method comprises the following steps: uniformly stirring and mixing the following components in parts by weight: 25-35 parts of a flame retardant, 0.25-0.5 part of a defoaming agent, 0.25-0.5 part of a flatting agent and 0.25-0.5 part of a pigment under the vacuum condition of 100 DEG C to obtain a resin base material, mixing the resin base material with a catalyst solution according to the mass ratio of the resin base material to a catalyst of 10000: (0.3-3), and then adopting a multi-stage curing process to obtain the flame-retardant dialkene electronic packaging composite material. All the components can be uniformly mixed and are