采用 L B 法考察了伊朗重质减渣馏分油 水界面膜的扩张粘弹性。结果表明, 伊朗重质油减渣馏分的扩张粘弹性随馏分的增重以及扩张频率的增大而递变。随着馏分的增重, 扩张模量、扩张弹性、扩张粘度增加,相角减小。随着扩张频率的增大, ...采用 L B 法考察了伊朗重质减渣馏分油 水界面膜的扩张粘弹性。结果表明, 伊朗重质油减渣馏分的扩张粘弹性随馏分的增重以及扩张频率的增大而递变。随着馏分的增重, 扩张模量、扩张弹性、扩张粘度增加,相角减小。随着扩张频率的增大, 扩张模量、扩张弹性增加, 扩张粘度、相角减小。轻馏分界面膜可压缩性好, 缓冲作用强, 扩张粘弹性参数随扩张频率及馏分的递变幅度小; 重馏分界面膜刚性强, 扩张粘弹性参数随扩张频率及馏分的递变幅度大。展开更多
Surface patterning was aroused much interest because of its great importance in the applications to microfluidic devices, etc. In this paper, we report a novel method to realize surface patterning on an electro-sensit...Surface patterning was aroused much interest because of its great importance in the applications to microfluidic devices, etc. In this paper, we report a novel method to realize surface patterning on an electro-sensitive polymerpoly(2-acrylamido-2-methylpropanesulfonic acid). Through imposing the external electrical field utilizing a copper mesh film used in SEM as electrode, the film exhibits different properties in the areas that contact or not contact with the metal part of the mesh, which resulting in a pattern being the same as the mesh. This effect can be well explained by the conformational change of the polymer chains in the electric field.展开更多
文摘Surface patterning was aroused much interest because of its great importance in the applications to microfluidic devices, etc. In this paper, we report a novel method to realize surface patterning on an electro-sensitive polymerpoly(2-acrylamido-2-methylpropanesulfonic acid). Through imposing the external electrical field utilizing a copper mesh film used in SEM as electrode, the film exhibits different properties in the areas that contact or not contact with the metal part of the mesh, which resulting in a pattern being the same as the mesh. This effect can be well explained by the conformational change of the polymer chains in the electric field.
基金We acknowledge the National Natural Science Foundation of China(52273110,21975191,52372271 and 22173070)the Youth Top Talent Project of Hubei Provence(GGB)+1 种基金the Knowledge Innovation Program of Wuhan-Shuguang Project(GGB)the Fundamental Research Funds for the Central Universities(WUT:2023III013GX)for financial supports.
