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未延伸並びに一軸延伸した超高分子量ポリエチレン--澱粉複合フィルムの力学的性質と生分解特性
https://kindai.repo.nii.ac.jp/records/13121
https://kindai.repo.nii.ac.jp/records/13121f84260de-555c-41fb-9f71-634ca26f315a
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
AA1247496X-20070320-0001.pdf (10.3 MB)
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| Item type | ☆紀要論文 / Departmental Bulletin Paper(1) | |||||||||
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| 公開日 | 2011-07-19 | |||||||||
| タイトル | ||||||||||
| タイトル | 未延伸並びに一軸延伸した超高分子量ポリエチレン--澱粉複合フィルムの力学的性質と生分解特性 | |||||||||
| その他（別言語等）のタイトル | ||||||||||
| その他のタイトル | Mechanical Properties and Biodegradation Characteristics of Unstretched and Uniaxially Stretched Ultra-High Molecular Weight Polyethylene-Starch Composite Films | |||||||||
| 著者 |
中島, 照夫
× 中島, 照夫
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| 言語 | ||||||||||
| 言語 | jpn | |||||||||
| キーワード | ||||||||||
| 主題 | mechanical properties, biodegradation characteristics, ultra-high molecular weight polyethylene-starch (UHMWPE-ST) composite film, outdoor test, indoor test | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | departmental bulletin paper | |||||||||
| 著者(英) | ||||||||||
| 言語 | en | |||||||||
| 値 | NAKASHIMA, Teruo | |||||||||
| 著者 所属 | ||||||||||
| 値 | 近畿大学資源再生研究所 | |||||||||
| 著者所属(翻訳) | ||||||||||
| 値 | Institute of Resource Recycling, Kinki University | |||||||||
| 版 | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 出版者 名前 | ||||||||||
| 出版者 | 近畿大学資源再生研究所 | |||||||||
| 書誌情報 |
近畿大学資源再生研究所報告 en : Annual report of the institute of resource recycling of Kinki University 号 5, p. 1-19, 発行日 2007-03-01 |
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| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | [Synopsis] Composite films of polyethylene with ultrahigh molecular weight (6×10^6) and corn starch were prepared by gelation-crystallization from dilute solutions. The polyethylene-starch compositions chosen were 3/1, 1/1, 1/3, and 1/5. The elongation was carried out in a hot oven at 135℃. The maximum drawability was affected by the composition. The maximum draw ratios of the 1/5 composite reached 80, and the corresponding Young's modulus was 10 GPa. The values of the films with the 3/1 and 1/1 composites were about 75 and 105 GPa, respectively, which are higher than the moduli of aluminum (70 GPa) and cast iron (90 GPa). In spite of the elongation up to such high draw ratios, most starch particles remained within the composite films. This interesting phenomenon is discussed in terms of the morphology of the composite films as studied by wide-angle x-ray diffraction, small-angle x-ray scattering, and scanning electron microscopy. Furthermore, the composite films with different compositions were put on a decarbonized agarose bench containing mineral nutrients, with had been prepared as isolate filamentous fungi medium in a Petri dish. The two kinds of filamentous fungi, Myrothecium verrucaria NBRC 6531 and Chaetomium globosum NBRC 6347, were incubated put on each film for 25days. Observation by scanning electron microscopy revealed that the number of starch particles in the fibrous tissue decreased, and the sizes of residual particles were much smaller than the original sizes, indicating the degradation of starch by the filamentous fungi. This tendency is significant for M. verrucaria. Disruption of the polyethylene fibrous textures could not be confirmed by scanning electron microscopy, in spite of the decrease in Young's modulus and tensile strength in comparison with those of the original specimens. Morphological changes for the composite films buried in red clay could be observed not only in the starch domain but also in the UHMWPE domain due to the degradation. Namely, many big holes and cracks with different sizes among fibrous textures existed indicating the chain scission of PE by remarkable biodegradation of PE chain. | |||||||||
| フォーマット | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | application/pdf | |||||||||
