Thermal and radiation resistance of stabilized LDPE

Thermal and radiation resistance of stabilized LDPE

The effect of capsaicin on the radiation stability of low density polyethylene was accomplished by applying the chemiluminescence procedure. The neat and modified polymer with 0.25% and 0.50% (w/w) capsaicin were exposed to γ-irradiation in air receiving 10, 20 and 30 kGy. The synergistic effect due...

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Veröffentlicht in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2010-03, Vol.79 (3), p.375-378
Hauptverfasser: Zaharescu, T., Jipa, S., Henderson, D., Kappel, W., Mariş, D.A., Mariş, M.
Format: Artikel
Sprache:eng
Schlagworte:
Capsaicin
Chemiluminescence
Degradation
Density
Low density polyethylene
Oxidation resistance
Polyethylenes
Receiving
Selenium
Stability
Synergistic effect
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Zusammenfassung:The effect of capsaicin on the radiation stability of low density polyethylene was accomplished by applying the chemiluminescence procedure. The neat and modified polymer with 0.25% and 0.50% (w/w) capsaicin were exposed to γ-irradiation in air receiving 10, 20 and 30 kGy. The synergistic effect due to the presence of metallic selenium was demonstrated. The significant improvement in oxidation induction time was obtained demonstrating the efficient antioxidant activity of capsaicin in LDPE. The simultaneous protection action of metallic selenium in LDPE/capsaicin systems brought about a supplementary enhancement in the oxidation resistance of irradiated samples.
ISSN:0969-806X
1879-0895
DOI:10.1016/j.radphyschem.2009.08.024