Bis-GMA/(SiO_2-ZrO_2)纳米复合树脂的制备与性能研究  

Study on Preparation and PropertiesofBis-GMA/(SiO_2-ZrO_2) NanoComposite Resin Dental Material

作　　者：张东清[1] 曾伟杰[1] 禤智东[2] 黄岳山[2] 张成明[2] 

机构地区：[1]解放军第四二一医院,广东广州510318 [2]华南理工大学生物科学与工程学院,广东广州510006

出　　处：《中国医学物理学杂志》2014年第3期4957-4961,共5页Chinese Journal of Medical Physics

摘　　要：目的:通过添加纳米无机填料对树脂基质进行增强增韧改性,来满足修复性牙科材料的要求,解决树脂基质耐磨性较差、强度低的问题,制备出合适的临床牙科修复材料。方法:采用原位分散法,双酚A-甲基丙烯酸缩水甘油酯(Bis-GMA)和双甲基丙烯酸二缩三乙二醇酯(TEGDMA)共同作为树脂基质,混合加入经过硅烷偶联剂(KH-570)表面处理的纳米氧化硅(SiO2)和二氧化锆(ZrO2)制备新型复合树脂,同时使用高速搅拌和超声分散等制备工艺来改善纳米填料分散体系,运用X射线衍射(XRD)、扫描电子显微镜(SEM)等实验手段对Bis-GMA纳米复合树脂材料进行性能测试及结构表征。结果:使用高速搅拌和超声分散技术可使经过表面处理的纳米SiO2和ZrO2均匀分散在树脂基质中,达到了纳米级原生粒子分散效果,发挥了不同无机填料间的相互作用,能够有效的提高复合树脂材料的机械性能。结论:该方法制备出的高性能Bis-GMA/nano(SiO2-ZrO2)复合树脂牙科材料,能充分满足临床牙科修复学需要。Objective：To overcome the defect in existent technology, and to research the preparation method of nano-composite resin dental material for improving the weakness of worse-abradability and low-intensity in ground substance by the method of reshaping in intensity with inorganic nanometer packing material, in order to be suitable in clinical dentistry material field. Methods： The composite material was generated by adding SiO2 and ZrO2 with surface treatment to bisphenol A-biglycidyl methacrylate （Bis-GMA） and triethylene glycol dimethacrylate （TEGDMA） which were resin substrates. Orthotope dispersion method was applied to improve the nanometer packing material disperse system with high-speed stirring and ultrasound disin- tegration. The significance testing and structural characterization of Bis-GMA/Nano（SiO2-ZrO2） composite resin dental material were achieved by using the instrumentation of XRD, SEM. Results： Nano- SiO： and ZrO2 by silane coupling agent surface- treated（KH-570） could homodisperse in Bis-GMA precursor with high speed stirring and ultrasound disintegration. And the in- organic nanometer packing material both get the nanometer protogenesis particle state in Bis-GMA and TEGDMA composite. It could emerge complementation and synergism in multi- particle.A novel kind of digital processing nanometer composite resin in dentistry was prepared with better-mechanical property. Conclusions： The composite resin in dentistry.Bis-GMA/Nano （SiO2-ZrO2） satisfy demands in clinical dentistry prosthetics for high quality material.

关 键 词：BIS-GMA 纳米填料 复合树脂 牙科材料 

分 类 号：R318.08[医药卫生—生物医学工程]