| 聚醚型聚氨酯／纳米炭纤维共混体系的热行为和表面分析 |
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| 引用本文： | 许海燕,杨子彬,孔桦,陆颂芳,彭屹. 聚醚型聚氨酯／纳米炭纤维共混体系的热行为和表面分析[J]. 高分子材料科学与工程, 2001, 17(2): 99-101 |
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| 作者姓名： | 许海燕 杨子彬 孔桦 陆颂芳 彭屹 |
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| 作者单位： | 中国医学科学院基础医学研究所,中国协和医科大学基础医学院, |
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| 基金项目： | 国家自然科学基金重点项目!(39830 12 0 )，北京市自然科学基金项目!(3982 0 0 7) |
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| 摘 要： | 采用纳米炭纤维 ( nano CF)与聚醚型聚氨酯 ( SEPU)共混复合 ,通过红外光谱、示差扫描量热分析及表面电子能谱分析 ,对该共混体系的热行为和表面化学组成进行了初步的表征与探讨。实验结果表明 ,共混体系中聚醚型聚氨酯的硬段微区含量增大 ,聚醚软段在材料表面的富集程度也得到提高
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| 关 键 词： | 聚醚型聚氨酯 纳米炭纤维 表面分析 |
| 文章编号： | 1000-7555(2001)02-0099-03 |
| 修稿时间： | 1999-04-12 |
RESEARCHES ON THE THERMAL BEHAVIORS AND SURF ACIAL COMPOSITION FOR POLYETHER POLYURETHANES／NANO-CARBON FIBER BLEND |
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| XU Hai-yan,YANG Zi-bin,KONG Hua,LU Song-fang,PENG Yi. RESEARCHES ON THE THERMAL BEHAVIORS AND SURF ACIAL COMPOSITION FOR POLYETHER POLYURETHANES／NANO-CARBON FIBER BLEND[J]. Polymer Materials Science & Engineering, 2001, 17(2): 99-101 |
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| Authors: | XU Hai-yan YANG Zi-bin KONG Hua LU Song-fang PENG Yi |
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| Abstract: | Polyether polyurethanes is one of the most important polymeric biomedical materials with acceptable blood compatibility and good mechanical properties. It is very useful in manufacturing of interventional catheters and artificial organs contacting with blood, in this paper, the polyether polyurethane was blended with certain amount of nano carbon fibers to form a novel composite system. The thermal behaviors and surfacial compositions of the blend were analyzed and discussed through DSC and ESCA. The results show that there are fews of changes taken place both in microphase structure of the blend and in its surfacial composition, the content of hard domain increased and the ratio of N/O on the blend surface were increased from 1/14.8 to 1/16.3, compared with the polyether polyurethane control, the Tg of the composite were increased too. |
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| Keywords: | polyether polyurethane nano carbon fiber surfacial composition |
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