聚α-烯烃磺酸钠低聚物的合成、表征及其性能研究  

Study on the synthesis,characterization and its performance of poly alpha olefin sulfonate oligomer

作　　者：李刚辉[1] 郑超[1] 阿尔吐克[2] 崔正攀 

机构地区：[1]陕西科技大学化学与化工学院,陕西西安710021 [2]新疆油田公司勘探开发研究院,新疆克拉玛依834000 [3]长庆油田公司超低渗透油藏第二项目部,甘肃庆阳745100

出　　处：《陕西科技大学学报（自然科学版）》2014年第6期92-95,114,共5页Journal of Shaanxi University of Science & Technology

摘　　要：以α-烯烃磺酸钠为单体,过氧化苯甲酰为引发剂,次亚磷酸钠为链转移剂制备了聚α-烯烃磺酸钠.使用红外光谱对聚合物进行结构表征.通过表面张力仪、接触角测量仪和水煤浆粘度计研究了产物的表面活性、润湿性能和分散性能.通过分水法考察了产物的乳化性能.结果表明,α-烯烃磺酸钠完全聚合得到聚α-烯烃磺酸钠,25℃下产物的CMC为5.9×10-2 mol·L-1,表面张力为37.3mN·m-1,在煤块表面的接触角为32.30°,表明其具有较高的表面活性和润湿性能,此外聚α-烯烃磺酸钠还表现出良好的乳化性能和分散性能.In this paper ,polyalpha olefin sulfonate was prepared with alpha olefin sulfonate as monomer ,benzoyl peroxide as initiator ,and sodium phosphite as chain transfer agent .The polymer structure was characterized by FTIR .The surface activity ,wettability and dispersion property were studied by surface tensiometer ,contact angle meter and coal water slurry viscosity meter .The emulsifying property is studied by water separating method .The results show that alpha olefin sulfonates were polymerized completely ,CMC of the product under 25℃ is 5 .9 ×10^-2 mol mol·L^-1 ,the surface tension is 37 .3 mN ·L^-1 ,its contact angle on the coal surface is 32 .30° .They all Show that it has higher surface activity and wettability .In addition ,the polymer exhibits excellent emulsifying property and dispersion property .

关 键 词：α-烯烃磺酸钠 低聚物 表面活性 润湿性能 乳化性能 分散性能 

分 类 号：O69[理学—化学]