聚甲基硅烷/二乙烯基苯的交联和裂解  

Cross-linking and Pyrolysis of Polymethylsilane/Divinylbenzene

作　　者：范雪骐[1] 陈来[1] 吴市[1] 张峰君[2] 张家宝[1] 任慕苏[1] 孙晋良[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072 [2]安徽建筑工业学院材料系,安徽合肥230022

出　　处：《材料科学与工程学报》2006年第6期920-922,共3页Journal of Materials Science and Engineering

摘　　要：本文研究了在不同的交联制度下,不同配比的聚甲基硅烷(PMS)/二乙烯基苯(DVB)对凝胶含量、陶瓷产率、陶瓷显微结构的影响。结果表明:随保温温度的升高,交联体系凝胶含量、陶瓷产率逐渐增大。PMS/DVB配比越小,陶瓷显微结构的缺陷越多。PMS/DVB配比为1/0.2,保温温度为300℃时,陶瓷产率较高,达到80%。XRD分析表明所得陶瓷为β-SiC。The influence of the ratio of polymethylsilane （PMS） /divinylbenzene （DVB） on gel content, ceramic yield, ceramic microstructure under different cross-linking conditions is investigated. Experimental results show that the increase of preservation temperature could elevate the gel content and ceramic yield. The smaller the ratio of PMS/DVB, the more defect of ceramic microstructures, The relatively high ceramic yield reached 80% with the weight ratio of PMS/DVB being 1/0.2 and preservation temperature being 300℃. The XRD analysis indicated that the ceramic derived from PMS/DVB was β-SIC.

关 键 词：先驱体 聚甲基硅烷 二乙烯基苯 交联 陶瓷 

分 类 号：V258.3[一般工业技术—材料科学与工程] TQ316.64[航空宇航科学与技术—航空宇航制造工程]