| 改性纳米金刚石增强增韧医用口腔复合树脂的研究 |
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| 引用本文： | 胡晓刚,顾晓宇,仝毅,张增明,罗运军,黄风雷,王新知. 改性纳米金刚石增强增韧医用口腔复合树脂的研究[J]. 化工新型材料, 2006, 34(2): 60-62 |
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| 作者姓名： | 胡晓刚 顾晓宇 仝毅 张增明 罗运军 黄风雷 王新知 |
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| 作者单位： | 北京理工大学材料科学与工程学院,北京,100081;北京大学口腔医学院,北京,100081;北京理工大学机电工程学院,北京,100081 |
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| 摘 要： | 以爆轰法合成的纳米金刚石作为填料,加入到双酚A型口腔用光固化复合树脂中,研究了纳米金刚石对树脂性能的影响.金刚石用硅烷偶联剂进行表面改性.结果发现:偶联剂化学接枝到金刚石表面,改性后的金刚石在乙醇中的分散稳定性得到提高;加入0.2%(质量分数)的改性纳米金刚石后,复合树脂的挠曲强度和硬度分别提高35.4%和29.8%,改性金刚石的增强作用明显优于未经改性的金刚石;同时金刚石的加入也改善了树脂的韧性.
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| 关 键 词： | 纳米金刚石 复合树脂 硅烷偶联剂 表面改性 挠曲强度 显微硬度 |
| 修稿时间： | 2005-10-28 |
Study on modified ultrafine-diamond reinforcing and toughening bis-phenol A dental composites |
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| Hu Xiaogang,Gu Xiaoyu,Tong Yi,Zhang Zengming,Luo Yunjun,Huang Fenglei,Wang Xinzhi. Study on modified ultrafine-diamond reinforcing and toughening bis-phenol A dental composites[J]. New Chemical Materials, 2006, 34(2): 60-62 |
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| Authors: | Hu Xiaogang Gu Xiaoyu Tong Yi Zhang Zengming Luo Yunjun Huang Fenglei Wang Xinzhi |
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| Abstract: | Ultrafine-diamond(UFD) synthesized by detonation was added into dental composites as filler.Properties of the composites were studied.The results showed that Silane coupling was chemically-grafted on the surface of UFD,the dispersion and stability of UFD in ethanol was improved;And a small quantity of m-UFD(surface modified UFD) with 0.2% weight percentage can improve the flexural strength and hardness by 35.4% and 29.8% respectively.The m-UFD was superior to n-UFD(not surface modified UFD).Also toughness of the composites was enhanced. |
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| Keywords: | ultrafine-diamond composite silane coupling surface modification flexural strength micro-hardness |
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