| SiO2粒径分布对牙科复合树脂性能影响 |
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| 引用本文： | 朱苞蕾,朱墨,王芮莉,张青红,孙宾,孙皎,朱美芳. SiO2粒径分布对牙科复合树脂性能影响[J]. 口腔材料器械杂志, 2011, 20(1): 10-14 |
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| 作者姓名： | 朱苞蕾 朱墨 王芮莉 张青红 孙宾 孙皎 朱美芳 |
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| 作者单位： | 1. 东华大学材料学院,上海,201620
2. 上海交通大学医学院附属第九人民医院,上海,201000 |
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| 摘 要： | 目的研究SiO2粒径分布对牙科复合树脂无机填料的填充量和物理机械性能的影响。方法采用经硅烷表面修饰的气相法纳米SiO2(NS)和微米SiO2(MS),通过调整两者相对质量比,与双酚A双甲氧基缩水甘油酯牙科树脂单体共混,制备了一系列牙科复合树脂M50N20,M55N15,M58N12,M60N10,M63N07,研究了不同SiO2粒径分布对无机填料的填充量,以及复合树脂维氏硬度、三点弯曲强度和断面形貌的影响。结果复合树脂中填料的填充量取决于无机填料的分布及比表面大小,当MS/NS=58/12时,复合树脂的无机填料填充量达到84wt%。M58N12表现出最高的三点弯曲强度(153.2MPa)以及维氏硬度(102.3MPa)。复合树脂断面的SEM形貌分析表明,纳米SiO2与复合树脂基体有较好的粘合作用。结论复合树脂中SiO2粒径分布对物理机械性能以及无机填料的填充量有较显著的影响。
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| 关 键 词： | 牙科复合树脂 SiO2粒径分布 填料填充量 力学性能 形貌分析 |
Influences of silica size distribution on the performance of dental composite |
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| Zhu Baolei,Zhu Mo,Wang Ruili,Zhu Meifang,Zhang Qinghong,Sun Bin,Sun Jiao. Influences of silica size distribution on the performance of dental composite[J]. Chinese Journal of Dental Materials and Devices, 2011, 20(1): 10-14 |
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| Authors: | Zhu Baolei Zhu Mo Wang Ruili Zhu Meifang Zhang Qinghong Sun Bin Sun Jiao |
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| Affiliation: | ,Zhang Qinghong,Sun Bin,Sun Jiao(1.College of Mateirials Science and Engineering,Donghua Univeristy,Shanghai 201620,China2.Ninth People′s Hospital affiliated to Shanghai Jiaotong University,Shanghai 201000,China) |
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| Abstract: | Objective The Purpose of this study was to evaluate the influence of the size distribution of the inorganic filler on the performance of the experimental dental composite.Methods Mixture of surface modified micro silica(MS) and nano silica(NS) with different weight ratio were used as the inorganic filler.A series of experimental dental composite with different filler size distribution were obtained by mixing processing of the inorganic filler with dental monomer,and were named as M50N20,M55N15,M58N12,M60N10... |
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| Keywords: | Dental composite Silica size distribtution Filler loading Mechanical properties Mophology analysis |
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