与常用的对木纤维进行化学改性的方法相比 ,本研究采用磺酰胺类增塑剂 ,在高速捏合机上对木纤维增塑 ,从而改进木纤维在聚丙烯中的分散性 ,采用马来酸酐接枝聚丙烯作为相容剂 ,使用了四种不同形态的木纤维来增强聚丙烯 ,研究了复合材料的力学性能与纤维种类、含量的关系 ,通过SEM研究了复合材料的断面形态 ,通过熔体流动速率研究了复合材料加工性能等。 Compared with the commonly used methods for chemical modification of wood fibers, sulfonamide plasticizers were used to plasticize wood fibers on a high-speed kneader so as to improve the dispersibility of wood fibers in polypropylene. Anhydride grafted polypropylene as compatibilizer, four different types of wood fibers were used to reinforce polypropylene. The relationship between the mechanical properties and fiber types and contents of the composites was studied. The cross-sectional morphology of the composites was studied by SEM. Melt flow rate of the composite processing properties.