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以介观模拟耗散颗粒动力学(DPD)方法为主,结合部分实验,研究了环境条件包括p H、盐度以及外加表面活性剂十二烷基磺酸钠(SLS)对疏水改性水解聚丙烯酰胺(HMHPAM)的分子行为和体相及界面性质的影响.将均方根末端距量化表征的聚合物伸展程度与其体相黏度结合起来,通过调整相互作用参数分别讨论了无机盐的水化作用和静电作用对聚电解质HMHPAM分子行为的影响,确定HMHPAM的最佳应用环境.进一步研究了表面活性剂SLS对HMHPAM界面性质和体相性质的影响,提出了作用机制.
Based on the mesoscopic simulation of dissipative particle dynamics (DPD), some experimental studies were carried out to investigate the effects of environmental conditions including p H, salinity and surfactant sodium dodecyl sulfate (SLS) on the hydrophobic modification The molecular behavior and the phase and interfacial properties of polyacrylamide (HMHPAM) were studied by combining the degree of stretching of the polymer with the bulk phase viscosity, and by adjusting the interaction parameters, And the effect of electrostatic interaction on the molecular behavior of polyelectrolyte HMHPAM, and determine the optimal application environment of HMHPAM.The effect of surfactant SLS on the interfacial properties and phase properties of HMHPAM was further studied and the mechanism of action was proposed.