Premium
The structure and properties of drawn blends of polyethylene and polypropylene
Author(s) -
Gallagher G. A.,
Jakeways R.,
Ward I. M.
Publication year - 1991
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.1991.070430801
Subject(s) - polypropylene , polyethylene , materials science , composite material , morphology (biology) , stress (linguistics) , diffraction , stress–strain curve , crystal structure , crystallography , optics , deformation (meteorology) , chemistry , linguistics , philosophy , genetics , physics , biology
A series of highly oriented tapes has been prepared from a blend consisting of equal proportions of polyethylene and polypropylene. The mechanical properties and the structure and morphology of the samples have been investigated using DSC, optical microscopy, and wide angle and small angle diffraction, including measurements of crystal strain on samples under stress. It has been confirmed that the blend is incompatible, and a structural model has been proposed which is consistent with the observation that the polyethylene and polypropylene components act essentially independently in their response to external macroscopic stress.