Premium
Measurement of the rheological properties of polymer melts with slit rheometer. II. Blend systems
Author(s) -
Han Chang Dae
Publication year - 1971
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1971.070151023
Subject(s) - materials science , rheometer , polystyrene , polypropylene , rheology , polymer blend , polymer , composite material , viscosity , capillary action , polymer chemistry , copolymer
Abstract A slit rheometer described in part I of this series was used for characterizing two blend systems by their viscous and elastic properties in the molten state. The blend systems chosen for study were blends of two high‐density polyethylenes having widely different molecular weight distributions and blends of polystyrene and polypropylene which are incompatible in the molten state. The present study shows that blends of two high‐density polyethylenes and blends of polystyrene with polypropylene exhibit a minimum in melt viscosity and a maximum and minimum in melt elasticity (in terms of “exit pressure”) at certain blending ratios. These results confirm the author's earlier findings, which were obtained with a capillary rheometer.