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Hydrothermal Gelation of Pure Cellulose Nanofiber Dispersions
http://hdl.handle.net/10091/0002000734
http://hdl.handle.net/10091/0002000734f68ab89f-b3f2-4771-a70c-8d4d87671f21
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
17H04893_2.pdf
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2022-03-10 | |||||||||
| タイトル | ||||||||||
| タイトル | Hydrothermal Gelation of Pure Cellulose Nanofiber Dispersions | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| DOI | ||||||||||
| 関連タイプ | isVersionOf | |||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | https://doi.org/10.1021/acsapm.9b00076 | |||||||||
| 関連名称 | 10.1021/acsapm.9b00076 | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | cellulose nanofiber | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | wet pulverization | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | hydrothermal treatment | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | gelation mechanism | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | mechanical strength | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | chemical-free synthesis method | |||||||||
| 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 | journal article | |||||||||
| 著者 |
Suenaga, Shin
× Suenaga, Shin
× Osada, Mitsumasa
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| 信州大学研究者総覧へのリンク | ||||||||||
| 表示名 | 長田, 光正 | |||||||||
| URL | https://soar-rd.shinshu-u.ac.jp/profile/ja.WmLUZFTp.html | |||||||||
| 出版者 | ||||||||||
| 出版者 | ACS | |||||||||
| 引用 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | ACS Applied Polymer Materials. 1: 1045-1053. (2019) | |||||||||
| 書誌情報 |
ACS Applied Polymer Materials 巻 1, 号 5, p. 1045-1053, 発行日 2019-03-27 |
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| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | The gelation of cellulose nanofibers (CNFs) through conventional cross-linking or reprecipitation requires the use of additives. Here, for the first time the gelation of pure CNF dispersions has been achieved solely by mechanical disintegration and a hydrothermal process without chemical modification. Different concentrations of cellulose powder were dispersed in water, following which these CNF dispersions were subjected to hydrothermal treatment at 160 degrees C for different lengths of time in a sealed reactor. Self-sustaining hydrogels with no discoloration were obtained. The chemical properties and crystal structures of the CNFs were essentially unchanged following hydrothermal treatment. Although the molecular mass of the cellulose was slightly reduced, the polymer density of cellulose at the same hydrodynamic radius was unchanged by hydrothermal treatment. Hence, chemically cross-linked structures did not form during the hydrothermal process. Instead, physical network structures developed within the CNF hydrogels, which increased the mechanical strength. Moreover, this network structure and therefore the strength of the hydrogel could be improved by increasing the mechanical disintegration time or the cellulose concentration of the CNF dispersion. To ensure sufficient hydrothermal gelation, it was important that the CNF dispersion had a storage modulus greater than 20 Pa. | |||||||||
| 言語 | en | |||||||||
| 資源タイプ（コンテンツの種類） | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | Article | |||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | EISSN | |||||||||
| 収録物識別子 | 2637-6105 | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | AM | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||
