中文摘要：

采用原位成纤复合法制备了无规共聚聚丙烯（PPR）／尼龙6（PA6）复合样品，研究了PA6的原位微纤化对PPR熔体挤出漉变性能的影响。结果表明，采用的“挤出-热拉伸-淬冷”工艺可实现PA6在PPR基体中的原位微纤化；少量PA6对PPR的挤出螺纹畸变有改善效果；添加相容剂PP—g-MAH（马来酸酐接枝聚丙烯）有利于改善PPR和PA6两相的界面相容性，并明显改善PPR的挤出螺纹畸变。当PA6质量分数为5％时，加入PP—g—MAH后挤出物外观质量较好，出现螺纹畸变的“临界”表观剪切速率从246s^-1增大到719s^-1。

英文摘要：

PPR/PA6 composite samples were prepared by in-situ fibrillation method. The influences of in-situ fibrillation of PA6 to the extrusion rheological properties of PPR were studied. The results show that PA6 fibers can be formed in PPR matrix by extrusiomstretehing-quenehing technique. Small quantity of PA6 can modify the helix distortions of PPR extrudates, a little solubilizer PP-g-MAH can modify the interracial compatibility of PPR and PA6, and modify the extrusion helical distortion well. When PA6 is 5% with a little solubilizer, extrusion sample displays better surface quality. Meanwhile, the critical corrected shear rate of the extrusion helical distortion can be increased from 246 s^-1 to 719 s^-1.