Attractive-appearance heat-resistant ASA composite material as well as preparation method and application thereof

The invention discloses a heat-resistant ASA composite material with good appearance and a preparation method and application thereof. The heat-resistant ASA composite material with good appearance comprises the following components in parts by weight: 40-75 parts of SAN resin, 26-42 parts of ASA rubber powder, 0.1-3 parts of a composite lubricant, 8-15 parts of a heat-resistant agent, 1-3 parts of a weather-resistant agent and 0-2 parts of other auxiliary agents, the composite lubricant is composed of a stearate derivative and oxidized polyethlene wax according to a mass ratio of (1.4-6): 1. According to the heat-resistant ASA composite material with good appearance, the stearate derivative and the oxidized polyethlene wax are compounded according to a specific proportion to form a composite lubricant, and the polarity of the stearate derivative is utilized to be inserted between resin molecular chains so as to reduce the shearing action between molecules; meanwhile, oxidized polyethlene wax is combined to r