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Chemiluminescence study of thermal and photostability of polyethylene

✍ Scribed by Jipa, Silviu; Zaharescu, Traian; Setnescu, Radu; Setnescu, Tanta; Brites, Maria J S; Silva, Ana M G; Marcelo‐Curto, Maria J; Gigante, Bárbara

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
145 KB
Volume
48
Category
Article
ISSN
0959-8103

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✦ Synopsis

The oxidation stability of low density polyethylene to UV light has been studied in the presence of various types of antioxidants (hindered phenols, HALS and synthetic N-alkylamines). A chemiluminescence procedure has been applied. Kinetic parameters of oxidation are obtained from isothermal measurements at 180 °C. The synergistic effect of antioxidant couples is examined and a stabilisation order is determined.

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✍ Ayako Torikai; Hajime Shirakawa; Shigeo Nagaya; Kenji Fueki 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 427 KB 👁 2 views

Four kinds of annealed polyethylene ( P E ) films with varying densities were photo-irradiated with a medium pressure mercury lamp. Photodegradation processes were followed by ultraviolet (UV) and Fourier transform infrared (FTIR) spectroscopic techniques and by gel and mechanical property measureme