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Some observations on the long‐term behavior of stabilized polyethylene
Author(s) -
Howard J. B.,
Gilroy H. M.
Publication year - 1975
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.760150406
Subject(s) - materials science , stabilizer (aeronautics) , polyethylene , texture (cosmology) , term (time) , composite material , forensic engineering , computer science , mechanical engineering , artificial intelligence , image (mathematics) , physics , quantum mechanics , engineering
Much has been written on the theoretical mechanisms by which the oxidation of polyolefins is believed to proceed and on the role of stabilizers in impeding this process. Relatively little information is available on the effects of some of the interesting, practical considerations—stress, stabilizer stability and the consequences of crystalline content and texture to name a few—which exert a controlling influence on the behavior of these materials in real‐life situations. Data are presented on the aging behavior of low‐ and high‐density polyethylenes at temperatues in the range 50‐110°C in the presence of copper and on the utility and limitations of oxygen absorption and differential thermal analysis as tools for accelerated prediction of this behavior.