The micro/nano-scale indentation tests were performed to explore the performance of bisphenol-a-glycidyl methacrylate (Bis-GMA)/triethylene glycol dimethacrylate (TEGDMA) dental resin composites.The effect of the filling content of nano-SiO2 particles on the mechanical properties of the dental composites was studied as well.The experimental results showed that the incorporation of the nano-SiO2 particles at low concentrations (up to 10 wt.%) can apparently increase the hardness and elastic modulus of the dental rein composites.The plasticity index indicates a best elastic recovery capability at a proper amount (4 wt.%) of the nanoparticles.Combined with the infrared spectrum, the mechanical enhancement mechanisms of the dental resin composites were analyzed.
Chao Zha Jianhua Hu Ainong Li Shangyu Huang Hanxing Liu Gang Chen Anqi Lei Zuoqi Zhang Bei Li Zhengzhi Wang
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, China;Research C School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, China Research Center for Materials Genome Engineering, Wuhan University of Technology, Wuhan, China;Inter Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, China School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, China;Research C