| 氨气低温等离子体技术对聚碳酸酯聚氨酯表面改性 |
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| 引用本文： | 冯亚凯,关文丽,赵海洋,郭锦棠,陈庆良,刘建实. 氨气低温等离子体技术对聚碳酸酯聚氨酯表面改性[J]. 高分子材料科学与工程, 2011, 0(5): 51-53,57 |
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| 作者姓名： | 冯亚凯 关文丽 赵海洋 郭锦棠 陈庆良 刘建实 |
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| 作者单位： | 天津大学化工学院;天津市胸科医院 |
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| 基金项目： | 科技部国际合作资助(2008DFA51170);教育部新世纪优秀人才支撑计划(NCET-07-0596);教育部留学回国人员科研启动基金资助项目;天津市科技计划项目(08ZCKFSF03300) |
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| 摘 要： | 利用氨气低温等离子体对聚碳酸酯聚氨酯材料进行表面修饰改性研究,讨论了改性条件对材料表面亲水性和表面形态的影响.蛄果表明,修饰材料表面的亲水性得到改善,随着表面氨基浓度增大,接触角降低;表面形态由高度平整光滑变为粗糙结构,而且粗糙程度因修饰条件不同而异;材料表面N/C比值从原始材料的2.44%上升到3.98%.时效性考察...
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| 关 键 词： | 聚碳酸酯聚氨酯 低温等离子体 表面修饰 氨气 水接触角 |
Surface Modification of Polycarbonate Urethane by Low-Temperature Ammonia Plasma |
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| Yakai Feng,Wenli Guan,Haiyang Zhao,Jintang Guo,Qingliang Chen,Jianshi Liu. Surface Modification of Polycarbonate Urethane by Low-Temperature Ammonia Plasma[J]. Polymer Materials Science & Engineering, 2011, 0(5): 51-53,57 |
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| Authors: | Yakai Feng Wenli Guan Haiyang Zhao Jintang Guo Qingliang Chen Jianshi Liu |
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| Affiliation: | 1.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;2.Tianjin Chest Hospital,Tianjin 300051,China) |
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| Abstract: | The polycarbonateurethane(PU) surface was modified by low-temperature ammonia plasma.The influences of modification conditions on the contact angle,amine content and surface morphology were investigated by water contact angle,scanning electron microscope(SEM) and X-ray photoelectron specroscopy(XPS).The results show that the hydrophilicity of PU surface is improved significantly after ammonia plasma modification.The water contact angle decreases with amine content on the surface increasing.The smooth surface gradually becomes rough after plasma modification.The surface morphology is different with different modified conditions.The C/N ratio on the surface increases from 2.44% to 3.98% after treatment,respectively.Water contact angle increases quickly in 5 h and then does not change any more within 10 h after plasma modification.As expected the ammonia plasma modified PU has good biocompatibility for preferred candidates for vascular graft. |
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| Keywords: | polycarbonateurethanes low-temperature plasma surface modification ammonia water contact angle |
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