| PA6原位成纤改善PPR的挤出流变性能 |
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| 引用本文： | 孙显茹,宋中心,张昊,吴其晔.PA6原位成纤改善PPR的挤出流变性能[J].现代塑料加工应用,2012,24(2):5-8. |
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| 作者姓名： | 孙显茹 宋中心 张昊 吴其晔 |
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| 作者单位： | 青岛科技大学橡塑材料与工程教育部重点实验室,山东 青岛,266042 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 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熔体挤出流变性能的影响。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。
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| 关 键 词： | 无规共聚聚丙烯 尼龙6 原位成纤 流变性能 挤出 螺纹畸变 |
Extrusion Rheological Properties of PPR Modified With In-Situ Fibrillation Composite of PA6 |
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| Sun Xianru
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Song Zhongxin
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Zhang Hao
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Wu Qiye.Extrusion Rheological Properties of PPR Modified With In-Situ Fibrillation Composite of PA6[J].Modern Plastics Processing and Applications,2012,24(2):5-8. |
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| Authors: | Sun Xianru Song Zhongxin Zhang Hao Wu Qiye |
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| Affiliation: | Sun Xianru Song Zhongxin Zhang Hao Wu Qiye(Key Laboratory of Rubber-Plastics,Ministry of Education,Qingdao University of Science and Technology,Qingdao,Shandong,266042) |
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| Abstract: | 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 extrusion-stretching-quenching technique.Small quantity of PA6 can modify the helix distortions of PPR extrudates,a little solubilizer PP-g-MAH can modify the interfacial 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. |
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| Keywords: | polypropylene random copolymer nylon6 in-situ fibrillation rheological property extrusion helical distortion |
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