稀土学报(英文版)
稀土學報(英文版)
희토학보(영문판)
JOURNAL OF RARE EARTHS
2002年
5期
483-491
,共9页
李幼荣%张明%周兰香%邱关明%井上真一%冈本宏
李幼榮%張明%週蘭香%邱關明%井上真一%岡本宏
리유영%장명%주란향%구관명%정상진일%강본굉
rare earths%ER effect%alumina-siloxane gel%viscosity%electric field strength%emulsion polymerization
Poly(methyl methacrylate) (PMMA) was used to wrap alumina-siloxane sol through emulsion polymerization. A kind of suspensions with notable ER effect was produced by fully mixing the prepared microcapsule with silicon oil. Meanwhile a series of PMMA wrapped alumina-siloxane gel doped with rare earths was obtained and its ER effect was tested, like viscosity of different rare earth ion doped samples in different powder concentrations and at different temperatures, at the same time, leak current density and dielectric constant were measured. Results show that the ER effect of this suspension is remarkable, and its stability is much better. The condition of emulsion polymerization and the mechanism of effect are discussed.
