Rheological Behavior of PES-C/DMAc Solution
The rheological behavior of Phenolphthalein polyethersulfone/dimethylacetamide (PES-C/DMAc) solutions were investigated with a cone-and-plate rheogoniometer. The solutions with various concentration show as shear-thinning fluids. Apparent viscosity η<,a> at same shear rate increases with PES-C concentration. In the studied range of PES-C concentration, non- Newtonian index n of five solutions with various concentrations is lower than 1.0 and continually decreases with PES-C concentration. In the studied range of temperature, Non- Newtonian indexn continually increases with solution temperature. The value of E<,η> increases with the PES-C concentration when the PES-C concentration is from 18％ to 28％ and changes slowly when the PES concentration is from 24％ to 28％.
Phenolphthalein polyethersulfone solution dimethylacetamide theological behavior non-Newtonian index viscous flow activation energy
ZHU Sijun ZHU Limin BRANFORD-WHITE Chris SUN Junfeng WANG Qingrui
Institute of Biological Sciences and Biotechnology, DongHua University, Shanghai 201620, P. R. China Institute for Health Research and Policy, London Metropolitan University, 166-220 Holloway Road, Lon The State Key Laboratory of Modification for Chemical Fibers and Polymer Materials, Donghua Universi
国际会议
上海
英文
87-89
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）