| 许卫星,丁辉.牙科纳米氧化铝复合树脂的制备与性能研究[J].口腔材料器械杂志,2020,29(2):11-15. |
| 牙科纳米氧化铝复合树脂的制备与性能研究 |
| Preparation and properties study of dental nano-alumina composite resin |
| 投稿时间：2019-12-09 修订日期：2020-03-05 |
| DOI：10.11752/j.kqcl.2020.02.02 |
| 中文关键词: 双酚A双甲基丙烯酸缩水甘油酯（Bis-GMA） 纳米氧化铝 复合树脂 力学性能 |
| 英文关键词:Bis-GMA Nano-alumina Composite resin Mechanical property |
| 基金项目:上海市黄浦区科委科技项目基金（编号：HKM201833）；上海市黄浦区卫健委重点研究发展专科项目基金（编号：HWZFK201810） |
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| 中文摘要: |
| 目的 制备一种新型的光固化纳米氧化铝复合树脂,探讨其用于口腔临床的可行性。方法 以双酚A双甲基丙烯酸缩水甘油酯(Bis-GMA)为树脂基质,甲基丙烯酸羟乙酯(HEMA)为活性稀释剂,添加纳米氧化铝填料对树脂基质进行增强增韧改性,制备一种新型牙科纳米氧化铝复合树脂,并表征其固化程度、弯曲强度、硬度、断面形貌、耐磨性、吸水性与水溶解性。结果 添加纳米氧化铝能提高复合树脂材料的刚性和硬度,当添加量达到3wt%时,复合树脂的力学性能、吸水和溶解性能均为最优。结论 复合树脂中加入一定比例的纳米氧化铝可达到增韧和耐磨的效果,该研究为开发新型牙科复合树脂提供了理论和实验基础。 |
| 英文摘要: |
| Objective A novel photocurable nano-alumina (Al2O3) composite resin was prepared and the feasibility for dental application was discussed. Methods The composite resin was composed of Bisphenol A dimethacrylate glycidyl ester (Bis-GMA), hydroxyethyl methacrylate (HEMA) and nano-Al2O3 filler, in which BisGMA was used as resin matrix, hydroxyethyl methacrylate (HEMA) as reactive diluent, and nano-Al2O3 filler was added to strengthen and toughen the composite resin. The curing degree, bending strength, cross-section, hardness, water absorption, water solubility, and wear resistance of the composite resin were tested. Results The addition of nano-Al2O3 improved the rigidity and hardness of the composite resin material. When the amount of nano-Al2O3 reached 3 wt-%, the mechanical properties, water absorption and solubility were optimal. Conclusion The dental composite resin with nano-Al2O3 had better wear resisting performance and toughness than the origin resin. The research provides a theoretical and experimental basis for the preparation of dental composite resins with good comprehensive performance. |
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