【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 .更多还原

【Abstract】 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.更多还原