CAJ | 학술논문

采用核孔膜过滤、填充砂管、流变、动态光散射(DLS)及显微镜研究了盐质量浓度对交联聚丙烯酰胺微球的形态、大小及封堵特性的影响。结果表明，不同盐质量浓度下微球对核孔膜均能形成有效封堵；填充砂管实验结果表明，盐质量浓度对聚合物微球的封堵强度影响相对较小，而且对微球在填充砂管中的深入性能基本未造成影响。随剪切速率增加，微球分散体系的黏度有所增大，呈现出轻微的胀流性质，且盐质量浓度对交联聚合物微球流变性的影响不大。随着盐质量浓度增加，显微镜下观察到的微球的立体感更强，微球的粒径变小，但变化幅度较小。
채용핵공막과려、전충사관、류변、동태광산사(DLS)급현미경연구료염질량농도대교련취병희선알미구적형태、대소급봉도특성적영향。결과표명，불동염질량농도하미구대핵공막균능형성유효봉도；전충사관실험결과표명，염질량농도대취합물미구적봉도강도영향상대교소，이차대미구재전충사관중적심입성능기본미조성영향。수전절속솔증가，미구분산체계적점도유소증대，정현출경미적창류성질，차염질량농도대교련취합물미구류변성적영향불대。수착염질량농도증가，현미경하관찰도적미구적입체감경강，미구적립경변소，단변화폭도교소。
The influence of salinity on the shape,size and plugging property of cross-linked polyacrylamide microspheres were studied by nuclear-pore film filtration experiment and sand-packed model,rheology and dynamic light scattering.The results show that the microspheres with different salinity all plug effectively.The experiments of sand-packed model showed that the salinity has little effect on the plugging properties,and not affects the plugging depth in the model at all.The viscosity of microspheres dispersed system increased with the increasing of shear rate,which displayed the minimal dilatants liquid property,and the salt concentration had little influence on the rheology of cross-linked microspheres.When the salinity increased,the microspheres had more stereo sense and smaller size,but these are only small changes.