Kinetic analysis of color changes in cellulose during heat treatment
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Abstract
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.
Journal
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- Journal of Wood Science
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Journal of Wood Science 58 (2), 113-119, 2012-04
Springer-Verlag
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Keywords
Details 詳細情報について
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- CRID
- 1050845760662174464
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- NII Article ID
- 10031137074
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- NII Book ID
- AA11200007
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- ISSN
- 14350211
- 16114663
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- HANDLE
- 2433/156046
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- NDL BIB ID
- 023587686
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN