水溶性疏水缔合聚合物在高岭土/水界面的吸附  

Adsorption Behavior of Water-Soluble Hydrophobic Associative Polymer at Water/Kaolin Interface

作　　者：郭拥军[1] 李富生[1] 李林辉[1] 郑焰[2] 黄小红[3] 罗平亚[2] 

机构地区：[1]西南石油学院化学工程系,南充637001 [2]西南石油学院油气藏地质与开发工程国家重点实验室 [3]西南石油学院科技开发总公司

出　　处：《应用化学》2002年第1期26-29,共4页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金 ( 2 99740 2 2 );油气藏地质及开发工程国家重点实验室开放基金 ( PL N 0 112 )资助课题

摘　　要：考察了水溶性疏水缔合聚合物丙烯酰胺 /丙烯酸钠 /十八烷基二甲基烯丙基氯化胺共聚物在高岭土 /水界面的吸附行为 ,以及无机盐 ( Na Cl和 Ca Cl2 )和表面活性剂 (十二烷基苯磺酸钠 SDBS)对吸附的影响 .共聚物在高岭土上的吸附量随平衡浓度的增加而增加 ,并表现出多层吸附特性 .随着 Na Cl和 Ca Cl2 浓度的增加 ,共聚物在高岭土上的吸附增加 ,到一定 Na Cl和 Ca Cl2 浓度后 ,吸附量不再增加 .溶液中 SDBS浓度的增加 ,可导致共聚物在高岭土上的吸附量单调下降 .The adsorption behavior of water-soluble hydrophobic association copolymer prepared from acrylamide(AM), sodium acrylate(NaAA) and octadecyl dimethylallyl ammonium chloride(C18DMAAC) at water/kaolin interface and the influences of sodium dodecyl benzene sulfonate(SDBS), sodium chloride(NaCl) and calcium chloride(CaCl 2) on the adsorption behavior have been studied. The adsorbtion capacity of the copolymer was found firstly increased with the increase in equilibrium concentration of the copolymer, then became to a nearly constant value being characteristic of a multilayer adsorption. The amount of the adsorbed copolymer increased with the increase of NaCl and CaCl 2 concentration firstly, then kept constant at higher salt concentration. The amount of the adsorbed copolymer decreased monotonously with the increase of SDBS concentration in the solution.

关 键 词：水溶性疏水缔合聚合物 表面活性剂 吸附 高岭土 水 固/液界面 

分 类 号：O631.21[理学—高分子化学] O647.3[理学—化学]