| 硬段侧链含有氟化双季铵盐的聚氨酯表面性能及抗菌性能分析 |
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| 引用本文： | 罗建斌,马晨,廖戎,万静,张鹏,张杰.硬段侧链含有氟化双季铵盐的聚氨酯表面性能及抗菌性能分析[J].高等学校化学学报,2010,31(6). |
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| 作者姓名： | 罗建斌 马晨 廖戎 万静 张鹏 张杰 |
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| 作者单位： | 西南民族大学化学与环境保护工程学院,成都,610041 |
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| 基金项目： | 西南民族大学青年重点基金 |
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| 摘 要： | 研究了硬段侧链含有氟化双季铵盐的系列聚氨酯(FQPUs)的表面性能和抗菌性能.水接触角测试和表面自由能测试结果表明,加入少量氟化双季铵盐扩链剂,可以使聚氨酯表面富集氟碳链,氟化双季铵盐聚氨酯表面自由能很低,具有很好的抗黏附性能.迁移到表面的两条氟碳链在常温下不会发生链反转,使材料的抗黏附性能得以保持.同时,使材料表面形成一层疏水层,减小材料的吸水率.XPS研究结果表明,氟碳链的—CF3位于材料的最外层,材料的次表面是具有良好杀菌性能的双季铵盐,这样形成了具有多重抗菌性能的表面.另外,XPS研究结果表明,材料表面化学结构与材料本体的微相分离结构相关.抗菌性能测试结果表明,氟化双季铵盐聚氨酯抗金黄色葡萄球菌的能力很强,对于大肠杆菌的抗菌效果有所下降,但相对于单季铵盐聚氨酯的抗菌效果有一定提高.
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| 关 键 词： | 氟化双季铵盐 聚氨酯 抗菌 表面性能 |
Surface and Antibacterial Properties of Polyurethane with Fluorinated Bis-ammonium Salts Attached to Hard Segments |
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| LUO Jian-Bin,MA Chen,LIAO Rong,WAN Jing,ZHANG Peng,ZHANG Jie.Surface and Antibacterial Properties of Polyurethane with Fluorinated Bis-ammonium Salts Attached to Hard Segments[J].Chemical Research In Chinese Universities,2010,31(6). |
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| Authors: | LUO Jian-Bin MA Chen LIAO Rong WAN Jing ZHANG Peng ZHANG Jie |
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| Institution: | LUO Jian-Bin,MA Chen,LIAO Rong,WAN Jing,ZHANG Peng,ZHANG Jie(College of Chemistry & Environment Protection Engineering,Southwest University for Nationalities,Chengdu 610041,China) |
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| Abstract: | The surface properties of the novel polyurethanes with fluorinated bis-ammonium salts group(FQPUs) were studied by contact angle test and XPS test.For polyurethanes with pendant fluorinated bi-sammonium salts,addition of little fluorinated bis-ammonium salts chain extender(EDF) made the polyurethane surface saturated with ammonium salts and fluorinated chains.The fluorinated alkyl chains endowed polyurethane with very low surface energy and antibacterial adhesion properties as proven by surface free energy ... |
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| Keywords: | Fluorinated bis-ammonium salt Polyurethane Antibacterial Surface property |
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