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Photodegradation of PEEK sheets under tensile stress

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タイトル: Photodegradation of PEEK sheets under tensile stress
著者: Nakamura, Hiroshi 著作を一覧する
Nakamura, Takashi 著作を一覧する
Noguchi, Toru 著作を一覧する
Imagawa, Kichiro 著作を一覧する
キーワード: Photodegradation
Space environment
Applying stress
Fourier transform infrared
X-ray photoelectron spectroscopy
Differential scanning calorimeter
Mechanical properties
発行日: 2006年 4月
出版者: Elsevier
誌名: Polymer Degradation and Stability
巻: 91
号: 4
開始ページ: 740
終了ページ: 746
出版社 DOI: 10.1016/j.polymdegradstab.2005.06.003
抄録: The photochemical reaction of poly(ether ether ketone) (PEEK) sheets under tensile loads has been investigated. Two types of UV irradiation tests were carried out in a vacuum environment: with and without a cooling apparatus. Chemical structures, thermal properties, and mechanical properties were measured to clarify photo-deterioration. Chemical analysis based on Fourier Transform Infrared Spectrometry (FT-IR) and X-ray Photoelectron Spectroscopy (XPS) showed photochemical scission caused by UV exposure. Thermal properties, measured by Differential Scanning Calorimetry (DSC), indicated that a crosslinking reaction occurred during the radiation tests. Tensile properties of PEEK sheets after UV radiation clearly showed a tendency to embrittlement affected not only by crosslinking but also by the orientation of molecular chains resulting from the temperature rise of the specimens. Furthermore, applied tensile stress during exposure accelerated molecular scission and disturbed the crosslinking effects of the tensile properties.
Relation (URI):
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 中村 孝


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