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タイトル: | Kinetic analysis of color changes in cellulose during heat treatment |
著者: | Matsuo, Miyuki https://orcid.org/0000-0002-4149-302X (unconfirmed) Umemura, Kenji https://orcid.org/0000-0002-6454-1290 (unconfirmed) Kawai, Shuichi |
著者名の別形: | 松尾, 美幸 |
キーワード: | Cellulose Heat treatment Color Kinetic analysis |
発行日: | Apr-2012 |
出版者: | Springer-Verlag |
誌名: | Journal of Wood Science |
巻: | 58 |
号: | 2 |
開始ページ: | 113 |
終了ページ: | 119 |
抄録: | This paper deals with the kinetics on the color changes of cellulose during heat treatment. The color of cellulose heated at 90-180℃ was measured by a spectrophotometer and expressed by CIELAB color parameters. The values of L* decreased and those of a*, b* and ΔE*ab increased at all the treatment temperatures. Several kinetic models, namely, the zero-order, first-order, second-order and autocatalytic model, were applied to the changes in the color values. Furthermore, the results of kinetic analysis using the best-fit model were compared to the results obtained from conventional kinetic models. It was suggested that the kinetic analysis using the best-fit model was the better way to accurately predict color changes during heat treatment. The values of apparent activation energy calculated from the changes of L*, a*, b* and ΔE*ab were 125, 124, 118 and 120 kJ/mol, respectively. These values were similar to the reported values calculated from other chemical or mechanical properties. |
著作権等: | The final publication is available at www.springerlink.com この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/156046 |
DOI(出版社版): | 10.1007/s10086-011-1235-5 |
出現コレクション: | 学術雑誌掲載論文等 |
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