シンポジウムセッション
- 第1日 5月15日（月） 14:40～15:00 B会場（会議室1202）
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1B-S-1440 PDF
温水用ポリエチレンの酸化劣化予兆評価法の検討
Non-cross-linked polyethylene pipe (PE-RT) was conducted to accelerated degradation test in hot water at 100°C under air pressurization and Cu2+ ion addition. The oxidation state was clarified by C=O FT-IR mapping on cross section of test piece. In this study test solution and gas phase of testing vessel were examined for finding the products generated by oxidation degradation of polyethylene. Ion chromatography (IC) and GC/MS method were used to analyze organic acid and hydrocarbons. It was discussed whether these products are possible to predict the oxidation in near future before oxidation degradation of polyethylene or not.