Volumetric rheology of polymers |
| |
Authors: | R Forstner G W M Peters C Rendina J W Housmans H E H Meijer |
| |
Institution: | (1) Materials Technology, Eindhoven University of Technology, PO Box 513, 5600 Eindhoven, The Netherlands;(2) Chemical and Food Engineering, University of Salerno, 84084 Fisciano, SA, Italy; |
| |
Abstract: | A novel dilatometer has been used to measure the evolution of specific volume at different cooling rates and at elevated pressures
under quiescent conditions and under shear for a series of commercial iPP homopolymers and polypropylene–ethylene random copolymers.
Significant influences of cooling rates, pressures, and shear flow on the transition temperature T
tr related to molecular weight and polydispersity and of course the temperature at which shearing was applied could be found
for the iPP homopolymers. In the copolymers, the composition defined by the ethylene content determined the position of the
transition temperature T
tr. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|