竹纤维增强聚丙烯复合材料的制备及其性能研究  

Research on Raw Bamboo Fiber Reinforced Polypropylene Composites

作　　者：王瑞[1] 王春红[1] 

机构地区：[1]天津工业大学纺织学院,天津300160

出　　处：《中国塑料》2006年第10期43-46,共4页China Plastics

基　　金：教育部高等学校博士学科点专向科研基金(20050058002)

摘　　要：以适当脱胶处理后的竹原纤维与聚丙烯纤维为原料,采用非织造工程的加工方法制作了混合纤维预制件,通过热压成型工艺制备了竹原纤维增强聚丙烯热塑性树脂复合材料。对复合材料的基本力学性能进行了测试与评价,探讨了预制件制作工艺、竹原纤维比例及热压成型工艺对复合材料力学性能的影响。利用扫描电镜(SEM)研究了复合材料拉伸断口的形貌。结果表明:竹原纤维与聚丙烯纤维的质量配比为50／50,模压温度、时间及压力分别为190℃,30 min及30 MPa时,制得的复合材料力学性能最好,其纵、横向拉伸强度分别为96．6 MPa和82．3 MPa;纵、横向弯曲强度分别为400．7 MPa和367．3 MPa。Non-woven pre-form was prepared from raw bamboo fibers and polypropylene fibers, which was employed as a reinforcer in polypropylene matrix. The fracture surfaces of the composites were examined by scanning electron microscopy （SEM）. When the weight ratio of the raw bamboo fiber and polypropylene fiber was 50/50, the molding temperature, time, and pressure were 165℃, 30 min, and 30 MPa, respectively, the tensile strengths of the composite in longitudinal and transverse directions were 96.6 MPa and 82.3 MPa, the bending strengths were 400.7 MPa and 367.3 MPa. respectively.

关 键 词：竹原纤维 聚丙烯 热压成型 力学性能 

分 类 号：TQ327.1[化学工程—合成树脂塑料工业]