| 聚乙烯微孔材料微观结构形成过程研究 |
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| 引用本文： | 何亚东,薛平,朱复华.聚乙烯微孔材料微观结构形成过程研究[J].北京化工大学学报(自然科学版),2000,27(3):46-50. |
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| 作者姓名： | 何亚东 薛平 朱复华 |
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| 作者单位： | 北京化工大学塑料机械及塑料工程研究所, 北京 100029 |
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| 摘 要： | 超高相对分子质量聚乙烯 (UHMWPE)微孔材料中的微孔结构是通过热致相分离方法 (Thermally Induced Phase Separation, TIPS)形成的。TIPS过程涉及到聚合物-溶剂二元体系,二元体系的相分离过程对微观结构的形成有很大影响。通过UHMWPE 石蜡油二元体系平衡态和非平衡态相图的测定,利用扫描电子显微镜(SEM)研究了二元体系的相分离过程以及不同冷却速度下形成的微观结构。
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| 关 键 词： | 超高相对分子质量聚乙烯 微孔材料 相分离 相图 超高相对分子质量聚乙烯 微孔材料 相分离 相图 |
| 收稿时间： | 1999-05-31 |
Research on the microstructure formation mechanism of polyethylene microporous material |
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| HE Ya-dong,XUE Ping,ZHU Fu-hua.Research on the microstructure formation mechanism of polyethylene microporous material[J].Journal of Beijing University of Chemical Technology,2000,27(3):46-50. |
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| Authors: | HE Ya-dong XUE Ping ZHU Fu-hua |
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| Institution: | Institute of Machinery and Plastics Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | The Ultra High Molecular Weight Polyethylene(UHMWPE) microporous material is formed by Thermally Induced Phase Separation(TIPS). The method is related to a polymer diluent binary system. In TIPS, the phase separation has great effects on resulting structure of UHMWPE microporous material. Equilibrium and non equilibrium phase diagrams of UHMWPE mineral oil binary system are measured and discussed in the paper. Scanning electronic microscope(SEM) is used to determine the formation mechanism of the different microstructures and to research the effect of quenching speed on the phase separation. |
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| Keywords: | UHMWPE microporous material phase separation phase diagram |
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