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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Agriculture / Faculty of Agriculture >
Peer-reviewed Journal Articles, etc >
Improvement of Mechanical Properties of Softwood Lignin-Based Carbon Fibers
| Title: | Improvement of Mechanical Properties of Softwood Lignin-Based Carbon Fibers |
| Authors: | Lin, Jian Browse this author | | Koda, Keiichi Browse this author →KAKEN DB | | Kubo, Satoshi Browse this author | | Yamada, Tatsuhiko Browse this author | | Enoki, Makiko Browse this author | | Uraki, Yasumitsu Browse this author →KAKEN DB |
| Keywords: | Softwood lignin | | chemical curing | | hexamethylenetetramine | | carbon fibers | | mechanical properties |
| Issue Date: | 1-Jun-2014 |
| Publisher: | Taylor & francis inc |
| Journal Title: | Journal of wood chemistry and technology |
| Volume: | 34 |
| Issue: | 2 |
| Start Page: | 111 |
| End Page: | 121 |
| Publisher DOI: | 10.1080/02773813.2013.839707 |
| Abstract: | PEG-lignin fibers obtained by a solvolysis pulping of Japanese cedar with polyethylene glycol (PEG) 400 were successfully converted into defective-free, infusible fibers as a precursor for carbon fibers (CFs) by chemical curing followed by oxidative thermostabilization. The curing was performed by immersing PEG-lignin fibers in an aqueous mixed solution of hexamethylenetetramine (60g/L) and hydrochloric acid (3M) at 85 degrees C for 1h, resulting in the formation of crosslinkages between lignin molecules through methylene groups. These cured fibers were completely thermostabilized upon heating up to 250 degrees C at a heating rate of 2 degrees C/min under an air atmosphere. Finally, the thermostabilized fibers were carbonized to yield CFs, which showed about 1.5times the tensile strength of our CFs previously prepared. |
| Rights: | This is an Author's Accepted Manuscript of an article published in [include the complete citation information for the final version of the article as published in the [JOURNAL TITLE] [date of publication] [copyright Taylor & Francis], available online at: http://www.tandfonline.com/[Article DOI]. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/60040 |
| Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 幸田 圭一
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