加成型硅橡胶口腔印模材的制备及性能优化  

Preparation and performance optimization of addition cured silicone rubber used as dental impression material

作　　者：徐镇田 游文 张和惠 周丹[3] Xu Zhentian;You Wen;Zhang Hehui;Zhou Dan(Jiangxi Leader Technology Limited Corporation,Nanchang 330096;Jiangsu Nanoener New Material Limited Corporation,Qidong 226236;School of Environmental and Chemical Engineering,Nanchang aeronautical University,Nanchang 330063)

机构地区：[1]江西绿泰科技有限公司,南昌330096 [2]江苏纳恩新材料有限公司,启东226236 [3]南昌航空大学环境与化学工程学院,南昌330063

出　　处：《化工新型材料》2021年第12期250-252,共3页New Chemical Materials

基　　金：江西省重点研发计划项目(20192BBE50042,20202BBEL53035);国家自然科学基金(21965023,51703091);江西省自然科学基金(20181BAB216012,20204BCJL23030,20212ACB214009,20202BBEL53035)。

摘　　要：选用不同含氢量的含氢硅油,研究了含氢量和硅氢比对加成型硅橡胶印模材料固化时间和硬度等性能的影响,并通过使用高低黏度乙烯基硅油复配等方法,提高了硅橡胶的力学性能,得到了可商业化应用的硅橡胶印模材料,其操作时间为60s,固化时间为5min,固化后硬度为66A,拉伸强度为1.86MPa,断裂伸长率为52.8%。The effects of hydrogen content and SiH/SiVi ratio on the curing time, hardness and other properties of the silicone impression materials were investigated.The mechanical properties of silicone rubber were improved by using high and low viscosity of vinyl silicone oil and other methods.The impression materials that can be used commercially were obtained, which the operation time was 60 s and the curing time was 5 min.After curing, the hardness of the material was Shore A66,the tensile strength was 1.86 MPa, and the elongation at break was 52.8%.

关 键 词：加成型硅橡胶 口腔印模材 性能优化 

分 类 号：TQ324.21[化学工程—合成树脂塑料工业]