▎ 摘　　要

NOVELTY - Dispersant for improving the low-temperature performance of waxy asphalt, where the dispersant is vinyl graphene oxide modified ionic liquid nanocomposite material, and obtained by adding vinyl graphene oxide and 1-butyl-3-methylimidazolium chloride ionic liquid into the initiator 2,2-azobisisobutyronitrile according to the mass ratio of 1:1 in the four-necked flask, stirring well and heating to 50-60℃ for 8 hours, stop heating, cooling to room temperature, reacting, precipitating, adding in the flask by gradually adding methanol, drying the separated sediment at 55-65℃, and the obtained black viscous solid is the vinyl graphene oxide-modified ionic liquid nanocomposite. USE - The vinyl graphene oxide modified ionic liquid nanocomposite dispersant for improving low-temperature performance of waxy asphalt, and asphalt used in road engineering asphalt pavement material field (claimed). ADVANTAGE - The dispersant has low steam pressure, unique solubility and good rheological characteristics, and improves low temperature performance of waxy asphalt. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: asphalt comprising 0-10 pts. wt. high-wax asphalt, nano silica hybrid vinyl acetate copolymer wax inhibitor, and 1-10 pts. wt. synthesized dispersant graphene oxide modified ionic liquid; and preparing the asphalt, comprising heating the raw asphalt in an oven at 170-180℃ to a fluid state, adding nano-silica hybrid vinyl acetate copolymer wax inhibitor and graphene oxide modified ionic liquid dispersant to the hot asphalt, and stirring evenly to obtain the asphalt.