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Full Terms & Conditions of access and use can be found atDownload by:[Monash University Library]Date:01 April 2016, At: 20:26Materials Research InnovationsISSN: 1432-8917 (Print) 1433-075X (Online) Journal homepage: Surface modification of quartz fibre and itsreinforced bis-GMA/MMA composites for dentalpostR. L. Wang, F. W. Liu, S. C. Wang, R. L. Wang, M. G. Xia, B. Sun & M. F. ZhuTo cite this article:R. L. Wang, F. W. Liu, S. C. Wang, R. L. Wang, M. G. Xia, B. Sun & M. F. Zhu(2014) Surface modification of quartz fibre and its reinforced bis-GMA/MMA composites fordental post, Materials Research Innovations, 18:sup4, S4-859-S4-863To link to this article:Published online: 05 Aug 2014.Submit your article to this journalArticle views: 41View related articlesView Crossmark data
Surface modification of quartz fibre and itsreinforcedbis-GMA/MMA composites fordental postR. L. Wang, F. W. Liu, S. C. Wang, R. L. Wang, M. G. Xia, B. Sun*and M. F. Zhu*A kind ofbis-phenol-A-glycidyl dimethacrylate (bis-GMA)/methyl methacrylate (MMA) compositebased dental post reinforced by quartz fibres (QFs) was prepared in this paper. Different factorswere investigated to observe their influences on the mechanical properties of quartz fibrereinforced composite (QFRC) dental post, including the surface etching, silanisation grafting toQFs and the volume fraction of QFs. 3-methacryloxypropyl trimethoxysilane (c-MPS) and 3-aminopropyl triethoxysilane (APTES) were used to graft to QFs to enhance compatibility of fibresand resins, and they were grafted to QFs successfully with different grafting ratios, which wereconfirmed by results of Fourier transform infrared spectroscopy (FTIR), Thermal gravimetricanalysis (TGA) and contact angle measurements. The sorption and solubility in artificial saliva(AS) of QFRC post was also studied by soaking in AS for 4 weeks to compare weight changesand mechanical properties. Mechanical testing results suggested that QFRC posts with QFsgrafted by APTES presented better properties and the optimal flexural strength and modulus wereup to 620?3 MPa and 21?6 GPa respectively, which is outstanding in similar materials and suitablefor the clinical application.Keywords:Quartz fibre,Bis-GMA/MMA, FRC post, Coupling agent, Surface modificationIntroductionFibre reinforced composites have been widely used inaerospace, automobile, architecture and medical fields.Fibre reinforced composite (FRC) post as substitute fortraditional metallic cast post and zirconia post has beenintroduced into dental restoration in recent years toretaintheartificialcrowninclinical.1,2Thehighmodulus of metallic cast post and zirconia post easilycauses the fracture of dental root, while FRC postpossessespropermodulusclosertothatofdentin(around 18?6 GPa), good corrosion resistance and hasno effect on nuclear magnetic resonance, which attractmany interests.

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Term
Spring
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Tags
Materials Science, Composite material, Fiberglass, QFs

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