玻璃纤维和相容剂对高密度聚乙烯弯曲性能的影响  

Effect of Glass Fiber and Compatilizer on Flexural Properties of High-density Polyethylene

作　　者：王占嘉[1] 王彦鸿 马燕月[1] 王向东[1] 许国志[1] 刘思菡 周洪福[1] 

机构地区：[1]北京工商大学材料与机械工程学院,北京100048 [2]北京首融汇科技发展有限公司,北京100041

出　　处：《塑料工业》2015年第10期91-94,共4页China Plastics Industry

基　　金：北京市教委面上项目(KM201310011002);北京市大学生科学研究与创业行动计划项目;北京工商大学高分子功能创新团队项目

摘　　要：采用双螺杆挤出机制备了不同含量高密度聚乙烯(HDPE)/玻璃纤维(GF)复合材料,并采用马来酸酐接枝高密度聚乙烯作为相容剂对该复合材料进行改性,研究了GF用量和相容剂用量对复合材料弯曲性能的影响。结果表明,随着GF用量的增加,HDPE/GF复合材料的弯曲强度和弯曲模量都有大幅度上升,热变形温度先大幅上升,后基本不变,GF用量为50份时,对复合材料的弯曲性能改性效果最佳。然后以此GF用量为基准,研究了相容剂用量对复合材料弯曲性能的影响。结果显示,随着相容剂用量的增加,HDPE/相容剂/GF复合材料的弯曲强度、弯曲模量都有上升,热变形温度先上升再下降,其中加入5份相容剂时,热变形温度最高。Glass fiber （GF） with various filling contents was blended with high-density polyethylene （HDPE） using twin-screw extruder to prepare HDPE/GF composites. And maleic anhydride-grafted HDPE was employed as a compatilizer to modify the composite. The effects of GF and eompatilizer contents on the content of GF was at 50 phr, the flexural property of composites was optimum. Subsequently, based on this GF content in the composite, the effect of the content of the compatilizer on the flexural properties of composites was studied. Results demonstrated that with the increasing content of the compatilizer, the flexural strength and flexural modulus of HDPE/compatilizer/glass fiber composites increased, and the thermal deformation temperature increased first and then decreased. When the compatilizer of 5 phr was added, the thermal deformation temperature of the composites was the hizhest.

关 键 词：高密度聚乙烯 弯曲性能 玻璃纤维 相容剂 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]