硬沥青/HDPE改性聚丙烯力学性能的研究  

The Hard Pitch /HDPE Modification PP Performance Research

作　　者：殷锦捷[1] 姜军[1] 屈晓莉[1] 

机构地区：[1]辽宁工程技术大学材料科学与工程系

出　　处：《塑料制造》2008年第3期67-69,共3页Plastics Manufacture

摘　　要：本文对硬沥青、高密度聚乙烯及硬沥青与高密度聚乙烯改性聚丙烯进行了研究,主要讨论了改性剂对聚丙烯力学性能的影响。通过正交实验得出了PP/硬沥青、PP/HDPE、PP/硬沥青/HDPE拉伸强度的最佳配比,再结合冲击强度,找出三种情况较好的力学性能。继续添加15%的马来酸酐熔融接枝的聚丙烯和5%、10%、15%、20%四种不同百分比的硅灰石粉(硬脂酸钠处理),其结果是拉伸强度与冲击强度均降低。This article mainly studied the blending modification of PP/Hard Pitch, PP /HDPE, PP/Hard Pitch/HDPE with the single screw extruder. The influence of modifier to PP mechanical properties was discussed. We got the tensile strength＇s optimum proportion of PP/Hard Pitch, PP/HDPE, PP/Hard Pitch/HDPE by orthogonal experiments, then combined with impact strength find out three good mechanical properties. Continue adding 15% PP of maleic anhydride melt grafting and 5%, 10%, 15%, 20% sodium stearate （stearic acid treated）, the result is that both the tensile strength and the impact strength are decreased.

关 键 词：聚丙烯 硬沥青 高密度聚乙烯 共混改性 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业] TG146.21[一般工业技术—材料科学与工程]