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Ultimate properties of blown films of linear low density polyethylene resins as affected by alpha‐olefin comonomers
Author(s) -
Kalyon Dilhan M.,
Moy Francis H.
Publication year - 1988
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.760282305
Subject(s) - materials science , comonomer , linear low density polyethylene , microstructure , composite material , crystallinity , ultimate tensile strength , polyethylene , gloss (optics) , low density polyethylene , polymer , copolymer , coating
Blown film samples of linear low density polyethylene resins copolymerized with butene, hexene, and octene were characterized in terms of various mechanical and optical properties which included tensile, impact, tear, puncture, haze, and gloss. The microstructure development aspects were also investigated employing crystallinity and density, infrared dichroic ratio, and birefringence, and focusing on various positions along the circumference of the bubble. The ultimate properties, and the microstructure of the blown film samples, were found to depend strongly on the extent of short chain branching and on the comonomer employed.