Reinforcement of denture base PMMA with ZrO(2) nanotubes.
In the research described, ZrO2 nanotubes were prepared by anodization. The morphologies, crystal structure, etc. were characterised by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffractometer (XRD), and Fourier transform infrared spectroscopy (FTIR). ZrO2 nanotubes were pre-stirred with the denture base PMMA powder by a mechanical blender and mixed with MMA liquid to fabricate reinforced composites. The composites were tested by an electromechanical universal testing machine to study the influences of contents and surface-treatment effect on the reinforcement. The ZrO2 nanoparticles were also investigated for comparative purposes. Results indicated that ZrO2 nanotubes had a better reinforcement effect than ZrO2 nanoparticles, and surface-treatment would lower the reinforcement effect of the ZrO2 nanotubes which itself was significantly different from that of the ZrO2 nanoparticles. The flexural strength of the composite was maximised when 2.0wt% untreated ZrO2 nanotubes were added.
School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
Wei
W
Yu
School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
Xixin
X
Wang
School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
Qingguo
Q
Tang
School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
Mei
M
Guo
School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, China. Electronic address: hebutzhaoj@126.com.
Jianling
J
Zhao
D001672:Biocompatible Materials / Q000737:chemistry*; D003819:Denture Bases; D055595:Mechanical Phenomena; D043942:Nanotubes / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D013499:Surface Properties; D015040:Zirconium / Q000737:chemistry*
D001672:Biocompatible Materials; D019904:Polymethyl Methacrylate; D015040:Zirconium; C028541:zirconium oxide
Denture base PMMA; Mechanical properties; Silane coupling reagent; Zirconium dioxide nanotubes