POSS Dental Nanocomposite Resin: Synthesis, Shrinkage, Double Bond Conversion, Hardness, and Resistance Properties

Polymers

卷:10

Xiaorong Wu¹  Yi Sun¹  Yizhi Liu¹  Weili Xie² 

[1] Department of Astronautic Science and Mechanics, Harbin Institute of Technology, Harbin 150001, China;

[2] Department of Stomatology, Harbin Medical University, Harbin 150001, China;

关键词: dental resin;    methacryl POSS;    shrinkage;    hardness;    scratch resistance;   

DOI  :  10.3390/polym10040369

来源: DOAJ

【 摘 要 】

Nanocomposite dental resins with 0, 2, 5, and 10 wt % methacryl polyhedral oligomeric silsesquioxane (POSS) as filler in the resin matrix were prepared by a light curing method.The atomic force microscopy (AFM), fourier transform infrared spectroscopy (FTIR), nanoindentation, and nanoscratch tests were carried out to study the effect of POSS contents on the compatibility, double bond conversion, volumetric shrinkage, hardness, modulus, and resistance of the dental resins. POSS was very uniformly dispersed and showed a good compatibility with the matrix. The double bond conversion increased and the volume reduced with the addition of POSS. As the POSS addition increased, the mechanical properties increased initially. Small addition of POSS remarkably enhanced the hardness and scratch resistance of the resin matrix.

【 授权许可】

Unknown