Flame-retardant elastic rubber-plastic wave insulation board and preparation method thereof

The invention relates to a flame-retardant elastic rubber-plastic wave thermal insulation material and a preparation method thereof. The flame-retardant elastic rubber-plastic wave thermal insulationmaterial comprises the following raw materials: an ethylene propylene diene monomer, butadiene styrene rubber, high styrene resin, dioctyl sebacate, a vulcanization accelerator, an active agent, an anti-scorching agent, a foaming agent, sulfur, an antioxidant, a light stabilizer and a composite flame retardant. Ethylene-propylene-diene monomer and a composite flame retardant are added; no polar substituent exists in the molecular structure of the ethylene propylene diene monomer; the molecular cohesion is low, a molecular chain can keep flexibility in a relatively wide range, and the flexibility and elasticity of the material are improved; by adding the composite flame retardant, heat can be absorbed to generate a thermal decomposition reaction, the temperature in a condensed phase can bereduced, the thermal decom