| 原位成纤复合法改善PP-R的挤出螺纹畸变 |
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| 引用本文： | 张昊,王占杰,刘祥贵,孙显茹,吴其晔. 原位成纤复合法改善PP-R的挤出螺纹畸变[J]. 现代塑料加工应用, 2011, 23(2): 1-4 |
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| 作者姓名： | 张昊 王占杰 刘祥贵 孙显茹 吴其晔 |
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| 作者单位： | 青岛科技大学教育部橡塑材料与工程重点实验室,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： | 研究了聚丙烯熔体挤出螺纹畸变产生的机理,采用原位成纤复合法制备无规共聚聚丙烯(PP-R)/聚对苯二甲酸乙二醇酯(PET)复合材料来改善PP-R的挤出性能。结果表明:口模入口区的环向次级流动是PP-R熔体产生螺纹畸变的主要原因;采用挤出-热拉伸-淬冷工艺制得的复合样品中PET以微纤状分散于PP-R基体中,有效地推迟了PP-R熔体挤出螺纹畸变的发生。
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| 关 键 词： | 聚丙烯 聚对苯二甲酸乙二醇酯 复合材料 螺纹畸变 原位成纤 |
Improvement of Helix Distortions of PP-R Extrudates With In-Situ Fibrillation Method |
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| Zhang Hao,Wang Zhanjie,Liu Xianggui,Sun Xianru,Wu Qiye. Improvement of Helix Distortions of PP-R Extrudates With In-Situ Fibrillation Method[J]. Modern Plastics Processing and Applications, 2011, 23(2): 1-4 |
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| Authors: | Zhang Hao Wang Zhanjie Liu Xianggui Sun Xianru Wu Qiye |
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| Affiliation: | Zhang Hao Wang Zhanjie Liu Xianggui Sun Xianru Wu Qiye (Key Laboratory of Rubber-Plastics,Ministry of Education,Qingdao University of Science and Technology,Qingdao,Shandong,266042) |
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| Abstract: | The mechanisms of the helix distortions occurred during PP-R melts extrusion were studied.The PP-R/PET composites made by in-situ fibrillation were used to improve the performance of PP-R extrudates.The results show that the helix distortions of PP-R extrudates are resulted from the annular secondary flow at the entrance of die. In the composites made by extrusion-tretching-quenching technique,the PET microfiber is dispersed in the PP-R matrixes.The occurrence of the helix distortions of PP-R extrudates is ... |
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| Keywords: | polypropylene polyCethylene terephthalate) composites helix distortion in-situ fibrillation |
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