The invention relates to a preparation method of spherical particle reinforced starch plastics, belonging to the field of biodegradable plastics. Firstly, starch is blended with lactic acid, maleic anhydride and succinic anhydride in a certain proportion, and thermoplastic starch plastic is prepared by reactive extrusion with a single-screw or twin-screw extruder. The prepared spherical particle reinforced starch plastic has its tensile strength increased by 4 to 30 times, with high tensile strength, certain fracture toughness and complete biodegradability. It has broad application prospects in disposable tableware, packaging, agricultural mulch films, medical supplies and other fields.
Area Code: CN
Application Number: CN202411523260.7
