Volume 43, Issue 1 (January 2015)

    Mechanical Properties of Epoxy Resin/PMMA/SiO2 Dental Composites

    (Received 27 September 2013; accepted 22 January 2014)

    Published Online: 2014

    CODEN: JTEOAD

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    Abstract

    Epoxy resin/ Thermoplastic polymethyl methacrylate (PMMA)/SiO2 dental composites were synthesized successfully at last after the following two steps: polymerization of MMA act as the initiator at this first process. Then the obtained PMMA was incorporated into epoxy resin and SiO2 to prepare the hybrid thermosets. The structural characteristics of epoxy resin/PMMA/SiO2 composites were characterized by Fourier transform infrared spectroscopy (FT–IR), scanning electron microscopy (SEM), and X-ray diffraction (XRD). What is more, the mechanical properties and water solubility of the composites have also been tested. It is found that the stability has been improved after adding SiO2 nanoparticles. In addition, the mechanical properties of composites which were modified by silica indicated that the mechanical properties of materials could be improved after preprocessing of SiO2 nanoparticles in epoxy resin/PMMA composites. Interference of epoxy resin produced magnetic adsorption and chemical reaction with the existence of hydroxyls, ether bonds and epoxy groups. In conclusion, the improvement in surface properties was ascribed to the enrichment of epoxy resin moiety on the surface of the nanostructured thermosets.


    Author Information:

    Mo, Zunli
    Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal Univ., Lanzhou,

    Zhu, Xiaobo
    Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal Univ., Lanzhou,

    Meng, Shujuan
    Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal Univ., Lanzhou,

    Guo, Ruibin
    Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal Univ., Lanzhou,


    Stock #: JTE20130242

    ISSN: 0090-3973

    DOI: 10.1520/JTE20130242

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    Author
    Title Mechanical Properties of Epoxy Resin/PMMA/SiO2 Dental Composites
    Symposium , 0000-00-00
    Committee D30