Stabilization effects of naringenin and caffeic acid on γ-irradiated EPDM

被引：13

作者：

Zaharescu, T. ^{[1
]}

Jipa, S. ^{[2
]}

Mantsch, A. ^{[1
]}

Henderson, D. ^{[3
]}

机构：

[1] ICPE CA, Inst Elect Engn INCDIE, Bucharest 030138, Romania

[2] Valachia Univ, Fac Sci, Targoviste 130082, Romania

[3] Trinity Coll, Hartford, CT 06106 USA

来源：

RADIATION PHYSICS AND CHEMISTRY | 2013年 / 84卷

关键词：

Stabilization; EPDM; Naringenin; Caffeic acid; Selenium; ANTIOXIDANT ACTIVITY; KINETIC APPROACH; RADIATION; ROSEMARY; CHEMILUMINESCENCE; RADIOPROTECTION; ELASTOMERS; OXIDATION; GINKGO; LDPE;

D O I：

10.1016/j.radphyschem.2012.06.050

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The stabilization of ethylene-propylene diene rubber (EPDM) with naringenin and caffeic acid is studied. The selected concentrations were 0.25, 0.50 and 1 phr. The degradation was performed by gamma-irradiation. The protective effect of these antioxidants was investigated by isothermal chemiluminescence at 170 degrees C and FTIR spectroscopy. The synergetic action of these compounds and metallic selenium was also revealed. The exceptional contribution provided by these phenolic stabilizers is characterized by three kinetic parameters: initial CL intensity, oxidation induction time and maximum period of degradation. The radiation stability of stabilized EPDM is efficiently depicted by induction periods which are the minimum 6 times longer for unirradiated samples and 2-50 times longer for 50 kGy-irradiated specimens than pristine EPDM. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：35 / 38

页数：4

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