High-speed fabrication of clear transparent cellulose nanopaper by applying humidity-controlled multi-stage drying method

Li, Chenyang; Kasuga, Takaaki; Uetani, Kojiro; Koga, Hirotaka; Nogi, Masaya

doi:https://doi.org/10.3390/nano10112194

High-speed fabrication of clear transparent cellulose nanopaper by applying humidity-controlled multi-stage drying method

Li, Chenyang; Kasuga, Takaaki; Uetani, Kojiro et al.

Nanomaterials, 2020, 10(11), 2194

アクセス数:840件（2025-08-16 03:22 集計）

固定URL: https://hdl.handle.net/11094/78433

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タイトル	High-speed fabrication of clear transparent cellulose nanopaper by applying humidity-controlled multi-stage drying method
著者	著者名 Li, Chenyang
	NRID 1000040915584 1000040915584 researchmap permalink tkasuga tkasuga 著者名 Kasuga, Takaaki
	NRID 1000020733306 1000020733306 著者名 Uetani, Kojiro
	NRID 1000030634539 1000030634539 ORCID 0000-0001-6295-1731 0000-0001-6295-1731 researchmap permalink hkoga hkoga Scopus Author ID 7201439917 7201439917 著者名 Koga, Hirotaka
	NRID 1000080379031 1000080379031 researchmap permalink read0151141 read0151141 Scopus Author ID 9846851200 9846851200 著者名 Nogi, Masaya
キーワード等	Cellulose nanofibers
	Fast-drying fabrication
	Multi-stage drying
	Relative humidity control
	Transparent nanopaper
内容	Li, C.; Kasuga, T.; Uetani, K.; Koga, H.; Nogi, M. High-Speed Fabrication of Clear Transparent Cellulose Nanopaper by Applying Humidity-Controlled Multi-Stage Drying Method. Nanomaterials 2020, 10, 2194. https://doi.org/10.3390/nano10112194.
抄録	As a renewable nanomaterial, transparent nanopaper is one of the promising materials for electronic devices. Although conventional evaporation drying method endows nanopaper with superior optical properties, the long fabrication time limits its widely use. In this work, we propose a multi-stage drying method to achieve high-speed fabrication of clear transparent nanopaper. Drying experiments reveal that nanopaper’s drying process can be separated into two periods. For the conventional single-stage evaporation drying, the drying condition is kept the same. In our newly proposed multi-stage drying, the relative humidity (RH), which is the key parameter for both drying time and haze, is set differently during these two periods. Applying this method in a humidity-controllable environmental chamber, the drying time can be shortened by 35% (from 11.7 h to 7.6 h) while maintaining the same haze level as that from single-stage drying. For a conventional humidity-uncontrollable oven, a special air flow system is added. The air flow system enables decrease of RH by removing water vapor at the water/air interface during the earlier period, thus fabricating clear transparent nanopaper in a relatively short time. Therefore, this humidity-controlled multi-stage drying method will help reduce the manufacturing time and encourage the widespread use of future nanopaper-based flexible electronics.
出版者	MDPI
収録物名	Nanomaterials
巻(号)	10(11)
ページ	2194
刊行年月	2020-11-04
言語	英語
ハンドルURL	https://hdl.handle.net/11094/78433
eISSN	20794991
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.3390/nano10112194
アクセス権	open access
権利情報	© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Nanomaterials. 2020, 10(11), p. 2194
DC.title	High-speed fabrication of clear transparent cellulose nanopaper by applying humidity-controlled multi-stage drying method
DC.creator	Li, Chenyang
	Kasuga, Takaaki
	Uetani, Kojiro
	Koga, Hirotaka
	Nogi, Masaya
DC.publisher	MDPI
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2020-11-04
DC.identifier	https://doi.org/10.3390/nano10112194
DC.subject	Cellulose nanofibers
	Fast-drying fabrication
	Multi-stage drying
	Relative humidity control
	Transparent nanopaper
DC.description	Li, C.; Kasuga, T.; Uetani, K.; Koga, H.; Nogi, M. High-Speed Fabrication of Clear Transparent Cellulose Nanopaper by Applying Humidity-Controlled Multi-Stage Drying Method. Nanomaterials 2020, 10, 2194. https://doi.org/10.3390/nano10112194.
DCTERMS.abstract	As a renewable nanomaterial, transparent nanopaper is one of the promising materials for electronic devices. Although conventional evaporation drying method endows nanopaper with superior optical properties, the long fabrication time limits its widely use. In this work, we propose a multi-stage drying method to achieve high-speed fabrication of clear transparent nanopaper. Drying experiments reveal that nanopaper’s drying process can be separated into two periods. For the conventional single-stage evaporation drying, the drying condition is kept the same. In our newly proposed multi-stage drying, the relative humidity (RH), which is the key parameter for both drying time and haze, is set differently during these two periods. Applying this method in a humidity-controllable environmental chamber, the drying time can be shortened by 35% (from 11.7 h to 7.6 h) while maintaining the same haze level as that from single-stage drying. For a conventional humidity-uncontrollable oven, a special air flow system is added. The air flow system enables decrease of RH by removing water vapor at the water/air interface during the earlier period, thus fabricating clear transparent nanopaper in a relatively short time. Therefore, this humidity-controlled multi-stage drying method will help reduce the manufacturing time and encourage the widespread use of future nanopaper-based flexible electronics.
DC.rights	© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	78433
citation_title	High-speed fabrication of clear transparent cellulose nanopaper by applying humidity-controlled multi-stage drying method
citation_author	Li, Chenyang
	Kasuga, Takaaki
	Uetani, Kojiro
	Koga, Hirotaka
	Nogi, Masaya
citation_publisher	MDPI
citation_language	英語
citation_date	2020-11-04
citation_journal_title	Nanomaterials
citation_volume	10
citation_issue	11
citation_firstpage	2194
citation_doi	https://doi.org/10.3390/nano10112194
citation_public_url	https://hdl.handle.net/11094/78433

High-speed fabrication of clear transparent cellulose nanopaper by applying humidity-controlled multi-stage drying method

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