硅酸盐学报2008，Vol.36Issue(7)：1000-1003,4.
水溶性环氧树脂体系的氧化锆凝胶浇注成型
GELCASTING OF ZIRCONIA USING WATER SOLUBLE EPOXY RESIN AS GEL FORMER
摘要
Abstract
Water soluble epoxy resin was used as gel former in the zirconia gelcasting process. The rheologieal properties and gelation behavior of the zirconia slurry were investigated. The rheological data shows that the slurry viscosity increases in the presence of epoxy resin. For the slurry with a solid phase content of 53.7% (in volume), the acceptable viscosity is about 0.60 Pa-s at 100 s-1. In order to obtain high elastic modulus polymer gel, the optional hardener (dipropylentriamin) content is 3.4% (in mass). Since the polymerization and gelation process depends greatly on the temperature, the gelation process can be controlled by controlling the temperature. At 30 ℃, the polymerization of epoxy resin in the slurry begins at 8 min. The slurry loses fluidity after 20 min, and slurry solidification is completed within 1h at 30--40 ℃. The elastic modulus (G')of the wet green bodies is 1.96 MPa. Compared with gelation at 30 ℃, the gelation process is hastened by higher temperature and results in higher G' of wet green bodies.关键词
凝胶浇注成型/氧化锆/水溶性环氧树脂/凝胶剂/流变性Key words
gelcasting/ zirconia/ water soluble epoxy resin/ gel former/ rbeological分类
化学工程引用本文复制引用
董满江,毛小建,张兆泉,刘茜..水溶性环氧树脂体系的氧化锆凝胶浇注成型[J].硅酸盐学报,2008,36(7):1000-1003,4.基金项目
中国科学院知识创新工程青年人才领域前沿项目(SCX200706). （SCX200706）
