The present invention provides a modified asphalt waterproof roll and a preparation method thereof. The modified asphalt waterproof roll comprises asphalt layers formed by coating an asphalt mixture on the upper and lower surfaces of a base. The asphalt mixture comprises petroleum asphalt, SBS (styrene/butadiene/styrene triblock copolymer), filler and a special modifier; the special modifier comprises SIBR (styrene/butadiene/isoprene terpolymer), a coupling agent, a vulcanizing agent or a combination thereof with a vulcanization accelerator, and an antioxidant. The preparation method of the modified asphalt waterproof roll comprises: melting and extruding raw materials through a twin-screw extruder, coating on the upper and lower surfaces of a base, then forming, sand sprinkling, cooling, traction and winding. The present invention completely changes the process mode of producing asphalt mixture with a stirring tank, is simple in operation, energy-saving and emission-reducing, requires no softening oil and high-temperature dispersion equipment, and the waterproof roll has excellent high and low temperature performance, durability and low cost.
Country Code: CN
Application Number: CN202410704548.8
