temperature and composition on the apparent viscosities of CPVC/CPE blends. The major results obtained are: 1. The variation of apparent viscosity with the shear rate for all blends can be described quite accurately by a modified power law model; 2. The activation energy (E) of CPVG or CPE at constant shear rate for flow is not constant
its value dependence of shear rate follows the simple exponential relationship; 3. The effect of temperature on the apparent viscosity of CPVC/CPE blend get smaller as CPE content increased; 4. Accoring to Utracki's work
the viscosity-composition relationship of CPVC/CPE blends isin agreement with "negative deviation".