Preparation of Biodegradable Capsules Composed of Paper Fibers by Utilizing Liquid-Liquid Dispersion
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- Taguchi Yoshinari
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University
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- Yamada Yasuyuki
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University
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- Ishikura Yoko
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University
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- Tanaka Masato
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University
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Biodegradable and controlled-release capsules composed of waste paper fibers as matrix and limonene droplets as core materials were prepared by utilizing the liquid-liquid dispersion. Encapsulation was performed due to coalescence between a droplets containing binder and fibers and those dissolving a gelling agent. In this experiment, methylcellulose as a binder and tannic acid as a gelling agent were used respectively. Paper fibers were treated hydrophobic prior to the encapsulation operation in order to improve waterproofing of capsules. It was investigated whether capsules could be prepared by this encapsulation process or not. Furthermore, it was investigated how the fiber concentration affected the morphology and release characteristics of capsules.<BR>As a result, it was found that capsules were able to be prepared due to coalescence between two kinds of droplets and the capsule morphology was extremely changed with the fiber concentration. Moreover, it was found that the change in morphology considerably affected the release characteristics. Namely, in the case of the lower fiber concentration, monocore-type capsule containing limonene droplets were formed. However, as the fiber concentration increased, multicore-type capsules were formed.
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 36 (10), 1236-1241, 2003
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204567411840
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- NII論文ID
- 10013414907
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- NII書誌ID
- AA00709658
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- COI
- 1:CAS:528:DC%2BD3sXosleltrg%3D
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- ISSN
- 18811299
- 00219592
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- NDL書誌ID
- 6720201
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可