中文摘要：

制备非离子表面活性剂P123（聚氧乙烯-聚氧丙烯-聚氧乙烯（PEO-PPO-PEO））、十二烷基硫酸钠（SDS）和水形成的3组分体系液晶并研究其性质。采用偏光显微镜（POM）及小角X射线散射技术（SAXS）,观测体系内各组分不同质量分数时的双折射现象和液晶织构,并确定样品相态。结果表明：当wP123=w（H2O）=45%,wSDS=10%时,在P123/SDS/H2O3组分体系中可以形成六角相;当wP123=63%,w（H2O）=27%,wSDS=10%时,P123/SDS/H2O 3组分体系中可以形成立方相。

英文摘要：

Three-components liquid crystal system is formed by mixing nonionic surfactant P123（poly（ethylene oxide-poly propylene-poly（ethylene oxide（PEO-PPO-PEO）,sodium dodecyl sulfate（SDS）,and its properties are investigated.Hexagonal liquid crystal phase is identified in wP123=w（H2O）=45%,wSDS=10% system,and cubic liquid crystal phase is found in wP123=63%,w（H2O）=27%,wSDS=10% systems by using polarized optical microscopy and small-angle X-ray scattering techniques.