Rheology of chlorosulphonated polyethylene solutions

✍ Scribed by S.G. Joshi; R.A. Mashelkar

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 317 KB
• Volume: 18
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(82)90189-6

✦ Synopsis

The viscosity behaviour of chlorosulphonated polyethylene was studied as a function of shear rate, concentration and temperature in three aromatic solvents viz. benzene, toluene and xylene. The Carreau model was used to correlate the data. The time constant tl arising from the Carreau model was compared with the Bueche time constant ),H; there appears to be good agreement between them especially at lower temperatures and higher concentrations. A unified curve based on plots of q/q0 vs ~'2B correlated the data successfully. The temperaure dependence of the zero shear viscosity was studied. The apparent activation energy for viscous flow was linearly related to the polymer concentration.