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DSC study of transitions involved in thermal treatment of foamable mixtures of PE and EVA copolymer with azodicarbonamide
Author(s) -
ReyesLabarta J. A.,
Olaya M. M.,
Marcilla A.
Publication year - 2006
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.23969
Subject(s) - differential scanning calorimetry , materials science , copolymer , polymer chemistry , vinyl acetate , ethylene vinyl acetate , thermal analysis , polyethylene , chemical engineering , polymer , thermal , composite material , thermodynamics , physics , engineering
Abstract The transitions and reactions involved in the thermal processing of binary mixtures of polyethylene and poly(ethylene‐ co ‐vinyl acetate) copolymers with different concentrations of a foaming agent (azodicarbonamide) were studied using differential scanning calorimetry (DSC). The effect of ZnO as a kicker also was discussed. The temperature at the maximum rate and the heat evolved were measured for all the processes—melting, transitions, and reactions—all the mixtures prepared were measured and compared. Azodicarbonamide decomposed differently depending on the polymeric matrix. These data can be very useful for the plastic processing industry. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 2015–2025, 2006