The invention discloses a hemp-plastic composite material for improving the weight loss rate of soil compost degradation and its preparation method. The preparation method includes the following steps: removing the surface bast fibers from hemp stalks, boiling the stalks in alkaline solution, followed by soaking, washing and drying, and crushing with a grinder to obtain hemp stalk powder. The hemp stalk powder is added into a silane coupling agent solution and stirred evenly. After standing, the mixture is filtered and dried to prepare modified hemp stalk powder. The modified hemp stalk powder is uniformly blended with polylactic acid, granulated by a twin-screw extruder, and injection molded by an injection molding machine to produce the hemp-plastic composite material. The prepared hemp-plastic composite material can be naturally degraded in soil compost with a high degradation weight loss rate.
Area Code: CN
Application Number: CN202411743429.X
