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Dynamic mechanical properties of binary blends of different polyethylenes. II. Isothermal treatment
Author(s) -
Orozco Jose A. Gonzalez,
Rego Jose M.,
Katime Issa
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.1991.070420718
Subject(s) - linear low density polyethylene , high density polyethylene , materials science , low density polyethylene , polyethylene , crystallization , isothermal process , composite material , relaxation (psychology) , polymer chemistry , thermodynamics , psychology , social psychology , physics
The relaxation processes and thermal properties of a series of blends of a highly linear high‐density polyethylene (HDPE) with several branched high‐density, linear low‐density (LLDPE), and low‐density polyethylenes (LDPE) have been measured as a function of crystallization temperature, T c , and content of branched polyethylene (BPE). The influence of composition on the dynamic mechanical spectrum of the HDPE has been rationalized taking into account the dilution with increasing content of BPE of those crystals formed during the isothermal crystallization. The influence of the type of second constituent (HDPE, LLDPE or LDPE) on the relaxation process of the HDPE has been explained in terms of segregation material data.