Premium
Supercritical CO 2 welding of laminated linear low density polyethylene films
Author(s) -
Caskey Terrence,
Lesser Alan J.,
McCarthy Thomas J.
Publication year - 2001
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.10921
Subject(s) - materials science , linear low density polyethylene , crystallinity , composite material , supercritical carbon dioxide , ultimate tensile strength , supercritical fluid , isotropy , welding , polyethylene , morphology (biology) , chemistry , physics , organic chemistry , quantum mechanics , biology , genetics
Supercritical carbon dioxide (SC CO 2 ) is used as a reversible plasticizing agent to promote solvent welding in highly oriented LLDPE films. These films are laid up in a quasi‐Isotropic fashion to enhance material properties in all directions. It is shown tht, after processing, the oriented morphology and crystallinity are effectively unchanged. These laminated films are investigated both physically and mechanically. The mechanical strength of laminate interfaces is tested using a T‐Peel test. Tensile properties of the laminated film are evaluated and compared to the single oriented plies. Tear resistance is measured using a single specimen J 1C .