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Physical and chemical properties of γ-irradiated EVOH film

被引：25
作者：
Byun, Young Jae
Hong, S. I.
Kim, K. B.
Jeon, D. H.
Kim, J. M.
Whiteside, W. S.
Park, Hyun Jin
机构：
[1] Korea Univ, Grad Sch Biotechnol, Seoul 136701, South Korea
[2] Eesang Co Ltd, Chungnam 330810, South Korea
[3] Korea Food & Drug Adm, Food Packaging Div, Seoul 122704, South Korea
[4] Ottogi Co Ltd, Anyang, South Korea
[5] Clemson Univ, Dept Packaging Sci, Clemson, SC 29634 USA
来源：
RADIATION PHYSICS AND CHEMISTRY | 2007年 / 76卷 / 06期
关键词：
gamma-irradiation; EVOH; oxygen permeability; free volume; physicochemical property changes;
D O I：
10.1016/j.radphyschem.2006.09.005
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 [物理化学]; 081704 [应用化学];
摘要：
The effects of gamma-irradiation on ethylene vinyl alcohol copolymer (EVOH) were investigated. Oxygen permeability decreased as irradiation dose increased in non-oriented (EF-CR), biaxially oriented (EF-XL) EVOH, and nylon/ EVOH/PP. Irradiation increased tensile strength (TS) and elongation at break (%E) of EF-CR; whereas, TS of EF-XL was not significantly changed and %E of EF-XL decreased. Irradiation had no effect on TS and %E of nylon/EVOH/ PP. Four volatile compounds, epsilon-caprolactam, 2-propyldecanol, 2-butyloctanol, and 2,3-diethyl-2,3-dimethyl-1,4-butanediol, were detected after irradiation. Optical properties were not changed. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：974 / 981
页数：8
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