光散射法研究丙烯酸十八酯和苯乙烯微乳液 共聚机理

在十六烷基溴化吡啶/叔丁醇/15%丙烯酸十八酯和苯乙烯/水体系的O/W微乳液中,使用动态光散射法,研究其中两种单体共聚反应的成核机理。结果表明,聚合过程中乳胶粒成核位置主要在增溶胶囊的单体微珠中,乳胶粒主要依靠单体微珠不断提供单体而长大。     

驱油体系的驱油效率及其在模拟岩芯表面的润湿性研究

为了研究驱油体系在模拟岩芯表面的润湿性 ,为微重力应用研究提供依据 ,选择胜利纯梁采油厂C6 4 1井原油 ,应用正交实验设计 ,通过最低瞬时界面张力测定 ,筛选出阴离子表面活性剂SDC V、非离子表面活性剂FBB、HPAM和复碱的驱油体系配方 .开展室内模拟驱油实验 ,同时测定驱油体系溶液对模拟岩芯的接触角 ,并且关联驱油效率和接触角之间的关系 ,发现驱油效率越高 ,接触角值越小     

双子表面活性剂溶液的表面活性的研究

研究了阳离子型双子表面活性剂,二溴化-N,N'-二(二甲基烷基)乙(已)二铵,以及它们与阴离子表面活性剂十二烷基苯磺酸钠(SDBS)复配体系的表面活性,测定上述体系的平衡态表面张力。结果表明：双子表面活性剂的表面活性大大高于十二烷基三甲溴化铵(DTAB);对于两种双子表面活性剂,其表面活性和表面张力时间效应受其联接基团的影响远大于其烷基链的影响。双子表面活性剂与SDAB复配,其协同效应不如DTAB。动表面张力测定得到它们的各种参：t~i,t~m,γ~m,t*和n等值,结果表面双子表面活性剂的瞬时活性也高于DTAB。     

甘油单油酸脂/水立方液晶体系流变性质的研究

Monoglyceride (MO) can form various liquid crystalline phases spontaneously in the presence of various amount of water at room temperature. The appropriate compositions from binary phase diagram of MO/H2O were selected to form cubic phases. The selected systems were studied at different salt concentrations and pH value using rheological methods. There was a weak effect of salt on viscoelastic properties of cubic phases formed from MO/H2O system. Hexagonal phase was formed when pH value was decreased or increased. The viscoelasticity of cubic phases was different from that of hexagonal liquid crystals. Rheological properties of MO/H2O cubic phases were stable at pH and salt concentration similar to physiological condition.