螺杆构型对PP/PA6共混物性能和相态结构的影响  

Effect of Screw Configuration on Mechanical Properties and Phase Morphology of PP/PA6 Blends

作　　者：胥伟伟[1] 马秀清[1] 王小武[1] 王录国 

机构地区：[1]北京化工大学机电工程学院,北京100029

出　　处：《中国塑料》2009年第8期95-100,共6页China Plastics

摘　　要：在啮合同向双螺杆挤出机中,研究了6种不同螺杆构型对聚丙烯/聚酰胺6(PP/PA6)共混物相态结构和性能的影响。结果表明,在熔融段设置拉伸型元件时,共混物的拉伸强度和冲击强度较大,而弯曲强度和流动性能则较小,分散相粒径较小且粒径分布更均匀;在熔融段设置剪切型元件、熔体输送段设置六棱柱(FTX)元件时,共混物的流动性能最好。The influence of six different screw configurations on the phase morphology and performance of PP/PA6 blends in a co-rotating twin screw extruder was studied. Setting tension-type elements in the melting section, the blends exhibited good tensile and impact strengths, but fair flexural strength and melt flowability. Setting shear-type elements in the melting section and FTX elements in the melt conveying section, the blends gave rise to the best processing properties.

关 键 词：双螺杆挤出机 聚丙烯 聚酰胺6 螺杆构型 相态结构 

分 类 号：TQ320.77[化学工程—合成树脂塑料工业]