Properties of a New Dental Photocurable Resin based on the Expanding Monomer and Threecomponent Photoinitiator System

查看全文 作　　者：[1,2]付静;LIU [1,2]Wenjia;LIU [1]Xiaoqing;Sapna laxmi [2]tuladhar;WAN [2]Qianbing;[1,2]王航

机构地区：[1]State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University;[2]Department of Prosthodontics, West China College of Stomatology, Sichuan University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》索引2014年第29卷第2期,共7页

基　　金：Funded by the National Natural Science Foundation of China(No.50673065) 摘　　要：The purpose of this study was to use a three-component photoinitiation system comprising 1wt% CQ(camphorquinone), 2wt% DMAEMA(2-(dimethylamino) ethyl meth acrylate) and 2wt% Ph2I+PF6-(diphenyliodonium hexafluorophosphate) to initiate the copolymerization of the matrix resins which combine bisphenol-S-bis(3-methacrylate-2-hydroxy propyl) ether(BisS-GMA) with the expanding monomer unsaturated spiro orthoesters 2-methylene-1,4,6-trispiro[4,4] nonane(MTOSN), for minimizing the volumetric shrinkage that generally occurs during polymerization. It was hypothesized that MTOSN would expand volumetrically during polymerization under the three-component photoinitiator system and further reductions in volumetric shrinkage would be obtained. The performance study which consists of degree of conversion and condition of the ring-opening reactions of MTOSN, volumetric shrinkage and mechanical properties including tensile bond strength, compressive strength and Vicker's hardness were carried out respectively by Fourier transfer infrared, the dilatometer and the universal testing machine. The results supported that the dental composites based on the expanding monomer and three-component photoinitiator system engendered a greater decrease of volumetric shrinkage and better mechanical properties. 关键词：光固化树脂三分量大单体光引发剂基础牙科属性体积收缩率

相关文献

参考文献（28）
引证文献（4）
耦合文献（8）

参考文献(28)

引证文献(4)

耦合文献(8)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Properties of a New Dental Photocurable Resin based on the Expanding Monomer and Threecomponent Photoinitiator System

参考文献(28)

引证文献(4)

耦合文献(8)

用户提示