有机硅改性聚丙烯酰胺的缔合行为与流变性能研究  

Study on the associating behavior and rheological properties of organosilicone modified polyacrylamide

作　　者：王成俊 高瑞民 洪玲 乔红军 王晨[2] 米小慧[2] 杨晓武[2] 

机构地区：[1]陕西延长石油(集团)有限责任公司研究院,西安710075 [2]教育部轻助剂化学与技术重点实验室,陕西科技大学,西安710021

出　　处：《化工新型材料》2013年第9期105-107,共3页New Chemical Materials

基　　金：国土资源部矿产节约与综合利用示范工程“特低渗透油田高效开发驱油效率示范工程”(886043);陕西省科技统筹创新工程计划项目“提高延长油田主力油层开发效果系统工程关键技术研究”(2011KTZB-04)

摘　　要：通过自由基聚合,以三乙基乙烯基硅烷(TVS),与丙烯酰胺(AM)、丙烯酸(AA)共聚,由于油溶性单体和水溶性单体极性差别很大,两者的不相容性使聚合工艺非常复杂,采用超声辅助的反应方法,得到有机硅改性聚丙烯酰胺(SPAM)。通过表观黏度法、荧光光谱法和动态流变研究了TVS含量对SPAM溶液的缔合行为和流变性能的影响规律。结果表明,TVS含量越高,SPAM溶液中疏水微区越多、非牛顿流体特性增加、表观黏度显著提高。TVS含量高于0.8%时,溶液表现出较佳的综合性能,溶液黏度保持率大于81.74%(矿化度为31000mg/L)。The organosilicone modified polyacrylamide（SPAM）that based on triethylvinylsilane（TVS）acrylamide （AM）and acrylic acid（AA）was prepared by ultrasonic assisted radical polymerization due to the incompatibility of the hy- drophobic and hydrophilic monomers. Effects of the TVS content on the associating behavior and rheological properties of SPAM were characterized through apparent viscosity method, fluorescence spectrometry and dynamic rheology. The results showed that the numbers of hydrophobic-domains in the SPAM solution, the property of non-newtonian fluid and the appar ent viscosity were increased significantly when increasing the content of TVS. The solution showed better comprehensive performance. The solution viscosity retention index was more than 81.74% （salinity was 31000 mg/L） when the content of TVS was higher than 0.8%.

关 键 词：疏水缔合 聚丙烯酰胺 有机硅 疏水微区 流变性能 

分 类 号：O631.3[理学—高分子化学]