Self-repairing elastomer modified asphalt coating material, weather-resistant modified asphalt coating material, waterproof coiled material and preparation method of waterproof coiled material

The invention discloses a self-repairing elastomer modified asphalt coating material. Asphalt, a disulfide modified styrene-butadiene-styrene block copolymerized thermoplastic elastomer, a compatilizer and a filler are used as main raw materials; the disulfide contains a dynamic disulfide bond. The preparation method comprises the following steps: firstly, synthesizing disulfide containing C = C double bonds at two ends, reacting the disulfide with carbon-carbon double bonds in SBS, introducing dynamic disulfide bonds between SBS molecular chains, preparing self-repairing elastomer modified asphalt, and endowing the polymer modified asphalt waterproof coiled material with excellent self-repairing capability; the high and low temperature performance and the anti-aging performance of the elastomer modified asphalt coating material can be synchronously and effectively improved; meanwhile, the weather-resistant self-repairing elastomer modified asphalt coating material is prepared by introducing the surface graft