表面活性剂对部分水解聚丙烯酰胺溶液抗盐性的影响  

Salt Resistance of Surfactants and Anionic Polyacrylamide Combined System

作　　者：敬加强[1] 安云朋 孙娜娜[1] 王春林[3] 王雷振[1] 

机构地区：[1]西南石油大学油气消防重点实验室,成都610500 [2]中国石油天然气管道工程有限公司,廊坊065000 [3]中国石油管道公司,廊坊065000

出　　处：《高分子通报》2015年第5期61-68,共8页Polymer Bulletin

基　　金：西南石油大学研究生创新基金暨"挑战杯"培育项目(项目编号:CXJJ2015030)

摘　　要：通过实验研究了阴离子表面活性剂(SDS)、非离子表面活性剂(OP-10)、两性表面活性剂(C12BE)浓度及KCl浓度对部分水解聚丙烯酰胺(阴离子型,HPAM)水溶液黏度的影响规律,进而分析各因素对聚合物溶液抗盐性的影响。实验结果表明:当表面活性剂浓度低于临界缔合浓度CAC时,聚合物溶液黏度变化不大;高于CAC后,随着表面活性剂浓度增大,聚合物溶液黏度急剧增加;当表面活性剂浓度达到聚合物饱和浓度PSP时,聚合物溶液黏度达到最大值;再加入阴离子和两性表面活性剂,将导致黏度降低,而加入非离子表面活性剂不再改变聚合物溶液的黏度,无机盐KCl对聚合物溶液有双重作用,低浓度KCl促进聚合物溶液黏度升高,高浓度KCl则导致聚合物溶液黏度急剧降低后趋于稳定,在相同KCl浓度下,三种表面活性剂的抗盐能力表现为:SDS>OP-10>C12BE。The salt resistance of surfactants and Partially hydrolyzed polyacrylamide(anionic)(HPAM)combined system was studied by measuring the viscosity of the combined system of HPAM with anionic surfactant(SDS),nonionic surfactant(OP-10)and ampholytic surfactant(C12BE).The results show that when the concentration of inorganic salt was constant,the viscosity of the combined system of HPAM with SDS and C12 BE increased firstly and then decreased,but with OP-10 increased firstly then became constant afterwards.When the concentration of surfactants was in the under of the critical association concentration(CAC),the viscosity of polymer solution was little changed;when the concentration of surfactants exceeded the CAC,the viscosity of polymer solution increased;when the concentration of surfactants reached the Polymer critical saturation concentration(PSP),the viscosity reached to the peak value;and then if the concentration of SDS and C12 BE increased once more,the viscosity decreased,but if the concentration of OP-10 increased again,the viscosity of polymer solution became constant.The effect of inorganic salt on the viscosity of the polymer solution changed with concentration of inorganic salt.The viscosity increased at low concentration,decreased sharply at high concentration,and then trend to be constant at last.In the same concentration range of inorganic salt,the salt resistance capacity of three surfactants was SDS>OP-10>C12BE.

关 键 词：HPAM 表面活性剂 KCL 黏度 抗盐性 

分 类 号：O633.22[理学—高分子化学]