Straw enhanced reprocessed plastic composite material and preparation method thereof

The invention provides a straw enhanced reprocessed plastic composite material. The straw enhanced reprocessed plastic composite material is characterized by comprising the following components in mass percent: 50 percent to 70 percent of modified straw powder, 20 percent to 40 percent of reprocessed plastic particles, 2 percent to 5 percent of a compatilizer, 1 percent to 5 percent of a lubricant, 1 percent to 3 percent of a coloring agent, 1 percent to 3 percent to an antioxidant and 1 percent to 3 percent of a light stabilizer. The modified straw powder is prepared from the following components in parts by mass: 100 to 110 parts of pre-treated straw powder, 0.1 to 1 part of graphene nano sheets, 1 to 4 parts of a cationic surfactant, 2 to 10 parts of mineral fillers and 4 to 10 parts of a coupling agent. A preparation method of the straw enhanced reprocessed plastic composite material comprises the following steps: straws pre-treatment, straw modification, a material mixing process, a granulation process,