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Polyethylenes/PET blend compatibilization with maleic anhydride modified polyethylenes obtained by a UV preirradiation process
Author(s) -
Martínez J. G.,
Benavides R.,
Guerrero C.
Publication year - 2007
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.25601
Subject(s) - compatibilization , maleic anhydride , materials science , low density polyethylene , reactive extrusion , high density polyethylene , polyethylene , polymer chemistry , polymer blend , benzoyl peroxide , composite material , linear low density polyethylene , crystallization , extrusion , copolymer , chemical engineering , polymerization , polymer , engineering
The compatibilization of HDPE/LDPE/LLDPE/PET blend during reactive extrusion, using compatibilizing agents, such as modified high, low, and lineal low density polyethylenes with maleic anhydride, was carried out. The agents were prepared in our laboratory by using a UV preirradiation process, containing different grafting and crosslinking degrees. The materials were compared with same maleic anhydride modified polyethylenes prepared by the traditional peroxide method in our laboratory and with a commercial maleic anhydride modified lineal low density polyethylene. The mechanical and thermal properties, as well as their morphology, were evaluated in the compatibilized blends and changes in crystallization phases recorded. The elongation at break and impact strengths increased with compatibilization level and morphology was markedly more homogenous. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 560–567, 2007