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Structure–property relationships of composite films
Author(s) -
Kalfoglou Nikos K.
Publication year - 1978
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.1978.070220409
Subject(s) - low density polyethylene , kapton , materials science , polyethylene , composite material , high density polyethylene , ethylene vinyl acetate , ultimate tensile strength , composite number , ionomer , natural rubber , copolymer , ethylene , polymer chemistry , polyimide , polymer , organic chemistry , chemistry , catalysis , layer (electronics)
Coextruded multifilms of varying chemical composition and structure were studied by the dynamic mechanical technique. The films studied were two‐ and three‐ply combinations of a polyimide (Kapton) and fluorinated ethylene–propylene copolymer (FEP) and four other two‐ply polyethylene and modified polyethylene composites: low‐density polyethylene (LDPE)–ionomer, rubber‐modified high‐density polyethylene (HDPE)–ionomer; ethylene–vinyl acetate (EVA) copolymer–LDPE, and EVA‐modified HDPE–LDPE. The mechanical spectra of individual film components were also obtained at 110 Hz between −120° and 120°C (220°C for the Kapton–FEP system). Mechanical relaxations were examined to determine the degree of interaction between adjacent films and correlate them with tensile and ultimate properties of the composite.