| 牙科复合树脂增韧用单壁碳纳米管的表面改性和微结构 |
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| 引用本文： | 夏阳,章非敏,徐丽娜,顾宁. 牙科复合树脂增韧用单壁碳纳米管的表面改性和微结构[J]. 生物医学工程学杂志, 2006, 23(6): 1279-1283 |
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| 作者姓名： | 夏阳 章非敏 徐丽娜 顾宁 |
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| 作者单位： | 1. 南京医科大学,口腔医学院,南京,210029
2. 东南大学,生物医学工程系,南京,210096 |
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| 基金项目： | 中国博士后科学基金;江苏省高校自然科学基金 |
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| 摘 要： | 为了使单壁碳纳米管（SWNTs）在牙科复合树脂中获得良好的单分散和牢固的界面结合，将其回流、氧化处理后，用APTE处理，然后用溶胶-凝胶法在其外侧壁包裹一层纳米SiO2颗粒，用硅烷偶联剂对包裹后的SWNTs进行化学改性，用红外光谱和透射电镜检测改性结果，发现透射电镜照片显示在SWNTs外壁上包裹了一层纳米级颗粒；红外光谱上出现SiO2的特征吸收峰；制备纳米复合树脂试件，用透射电镜观察，发现SWNTs镶嵌在树脂基质内的其他填料之间。
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| 关 键 词： | 牙科复合树脂 碳纳米管 硅烷偶联剂 |
| 收稿时间： | 2005-12-28 |
| 修稿时间： | 2005-12-282006-05-08 |
Surface Modification and Microstructure of Single-walled Carbon Nanotubes for Dental Composite Resin |
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| Xia Yang,Zhang Feimin,Xu Li'na,Gu Ning. Surface Modification and Microstructure of Single-walled Carbon Nanotubes for Dental Composite Resin[J]. Journal of biomedical engineering, 2006, 23(6): 1279-1283 |
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| Authors: | Xia Yang Zhang Feimin Xu Li'na Gu Ning |
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| Affiliation: | 1,School of Dentistry,Nanjing Medical University, Nanjing 210029,China;2,Department of Biomedical Engineering,Southeast University,Nanjing 210096,China |
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| Abstract: | In order to improve its dispersion condition in dental composite resin and enhance its interaction with the matrix, single-walled carbon nanotubes(SWNTs) were refluxed and oxidized, then treated by APTE. Their outer surface were coated by nano-SiO_2 particles using sol-gel process, then further treated by organosilanes ATES. IR and TEM were used to analyze modification results. TEM pictures showed nano-particles were on the surface of SWNTs; IR showed characteristic adsorbing bands of SiO_2. Composite resin specimen with modified SWNTs was prepared and examined by TEM. SWNTs were detected in composite resin matrix among other inorganic fillers. |
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| Keywords: | SiO2 |
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