摘要
分别以OP-10、油酸、CTAB(十六烷基三甲基溴化铵)为表面活性剂,正己醇、正戊醇、正辛醇为助表面活性剂,环己烷、正庚烷、异辛烷为油相,硝酸钡的水溶液为分散相配制不同的反相微乳液体系,测定各体系的最大增溶水量,并确定微乳液体系的最佳配方,通过绘制拟三元相图,研究微乳液体系的稳定性,结果表明:以OP-10为表面活性剂,正己醇为助表面活性剂,环己烷为油相时为配制反相微乳液的最佳配方,并且OP-10/环己烷的浓度为0.35mol/L,正己醇与OP-10的物质的量之比P=1.3时微乳液最稳定。按最佳配方和微乳液最稳定时制备出了分散性好、粒径约为40nm的钛酸钡纳米粉体。
preparation of different reverse microemulsion system by OP-10, oleic acid, CTAB as surfactant, hexanol, pentanol, octanol as cosurfactant, cyclohexane, heptane, isooctane as the oil phase, Barium nitrate solution as the dispersed phase, using electrical conductivity method Determining maximum water solubilization of different reverse microemulsion system In order to determine the best formula of microemulsion system, study the stability of microemulsion by drawing Quasi-ternary phase diagram, the result indicate that it is the best formula when the OP-10 as surfactant, hexanol as cosurfactant and cyclohexane as oil phase for the preparation of microemulsion and the most stable microemulsion is formed when OP-10/cyclohexane as 0.35 mol/1, the molar ratio of hexanol and OP-10 is 1.3. The particle size of 40nm, dispersed well Barium titanate nano-powders is obtained by the best formula and the most stable microemulsion.
出处
《中国陶瓷》
CAS
CSCD
北大核心
2010年第12期25-28,共4页
China Ceramics
关键词
反相微乳液
拟三元相图
电导率
稳定性
钛酸钡
reverse microemulsion, Quasi-ternary phase diagram, conductivity, stability, barium titanate
