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Blends of linear and branched polyethylenes
Author(s) -
Lee Heon Sang,
Denn Morton M.
Publication year - 2000
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.11241
Subject(s) - materials science , linear low density polyethylene , miscibility , high density polyethylene , rheology , phase (matter) , reptation , polyethylene , polymer blend , ternary operation , composite material , thermodynamics , low density polyethylene , ternary numeral system , polymer , copolymer , organic chemistry , chemistry , physics , computer science , programming language
We employ rheological measurements of polyethylene blends in the melt and solid state, together with thermal analysis, to infer phase behavior. Partial‐miscibility in the melt is characterized by use of the double‐reptation model to define the complex modulus of the continuous phase for input into the emulsion model for the blend; this approach introduces a new fitting parameter, the fraction of the minor component contained in the continuous phase. The results on binary systems suggest the use of HDPE as a compatibilizer for LLDPE/LDPE blends, apparently creating a fully miscible ternary system.