The invention discloses a
styrene butadiene rubber (SBR)
sponge composite material and a preparation method thereof and relates to the preparation method of the SBR
sponge composite material. SBR rubber 1502 is prepared by the following steps of: sequentially adding 30 to 50
mass parts of
ethylene propylene terpolymer, 170 to 180
mass parts of light
calcium carbonate serving as a filler, 28 to 30
mass parts of argil, 23 to 25 mass parts of
black smoke serving as a reinforcing agent N330, 67 to 70 mass parts of naphthenic oil serving as a softener, 2.7 to 3 mass parts of dispersant AFLUX-42, 2 to 2.3 mass parts of
antioxidant, 2.5 to 2.8 mass parts of protective
wax, 2.7 to 2.8 mass parts of
stearic acid, 9 to 9.5 mass parts of
zinc oxide, 5 to 6 mass parts of vulcanizing agent and vulcanizing agent aid, 19 to 21 mass parts of
activated charcoal (AC)
foaming agent, 70 to 73.5 mass parts of
flame retardant and 2.5 to 2.8 mass parts of
processing aid into an internal mixer for mixing, performing thin passing, cooling and extruding; performing primary
vulcanization and secondary
vulcanization; and foaming. The
composite material has the advantages that: an
ethylene-propylene-
diene monomer (EPDM) has high
ageing resistance, saturation non-polarity and non-self-reinforcing property and can absorb a large amount of oil and a large number of fillers; simultaneously, the
flame retardant is added, so that the product has high
flame retardance and high antistatic property.