摘要
以丙烯酰胺(AM),2-丙烯酰胺-2-甲基丙磺酸(AMPS),二甲基二烯丙基氯化铵(DMDAAC)和烯丙醇聚氧乙烯醚(APEG)制备了一种耐温耐盐AM-APEG-AMPS-DMDAAC四元聚合物。对该聚合物进行了红外、ESEM表征。考察了反应温度、pH值、引发剂加量、单体浓度、配比等对聚合物表观粘度的影响,确定了最佳的合成条件。抗温、抗盐、抑制钠蒙脱土(Na-MMT)水化膨胀实验结果表明:在矿化度为13000mg/L或130℃条件下表观粘度保留率分别为88%和38%,同时该聚合物与KCl或NaCl复配能够显著降低Na-MMT的晶层间距,提高泥页岩在水浸泡后的压入硬度。
A novel copolymer was synthesized using acrylamide （AM） ,2-acrylamido-2-methyl propane sulfuric acid（ AMPS）, Diallyl dimethyl ammonium chloride （DMDAAC） and Acrylic polyethers （APEG）. Structural and morphologic charaeterization was studied by IR and ESEM respectively. The reaction conditions were optimized such as temperature,pH value, the loading of initiator and so on. The retention rate of apparent viscosity of this copolymer could afford up to 38% under high temperature（ 130℃ ）and 88% with 13000mg,/L NaC1 brine,respeetively. What＇s more,the test results of X-RD showed that the prepared copolymer solution, combining with KC1 or NaC1, could obviously inhibit the expansion of the lattice spacing of sodium montmorillonite（Na-MMT） and improve the indentation hardness of the shale in water.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2013年第10期1375-1380,共6页
Chemical Research and Application
基金
国家自然科学基金石化联合基金重点项目(U1262209)资助
国家自然科学基金项目(51274172)资助
关键词
两性离子聚合物
粘土稳定剂
耐温
耐盐
晶层间距
clay stabilizer
lattice spacing
salt-tolerant
temperature-resistance
zwitterionic copolymer
