ダウンロード数: 844
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
s10086-011-1214-x.pdf | 962.62 kB | Adobe PDF | 見る/開く |
タイトル: | Characterization of wood-based molding bonded with citric acid |
著者: | Umemura, Kenji https://orcid.org/0000-0002-6454-1290 (unconfirmed) Ueda, Tomohide Kawai, Shuichi |
著者名の別形: | 梅村, 研二 |
キーワード: | Wood-based molding Citric acid Natural wood adhesive Physical properties |
発行日: | Feb-2012 |
出版者: | Springer |
誌名: | Journal of Wood Science |
巻: | 58 |
号: | 1 |
開始ページ: | 38 |
終了ページ: | 45 |
抄録: | The wood-based moldings were fabricated by using only citric acid as an adhesive. The mechanical properties, water resistances, thermal properties and chemical structure were investigated. Wood powder obtained from Acacia mangium was mixed with citric acid under certain weight ratios (0-40 wt%), and each powder mixture was molded using two types of metal molds at 200 °C and 4MPa for 10 min. The modulus of rupture (MOR) and the modulus of elasticity (MOE) values of the wood-based molding containing 20wt% citric acid were 35.8 MPa and 5.4 GPa, respectively. The maximum impact strength was 0.94 kJ/m2 with the same citric acid content. The water resistance increased with increasing citric acid content, and the good resistance to boiling water was also recognized. However, some elution of substances derived from citric acid was observed at high levels of citric acid, causing a decrease in the thermal properties. The ester linkages were detected by Fourier transform infrared spectroscopy (FT-IR), indicating that the citric acid reacted with the wood. Our results demonstrated that citric acid brings about good adhesiveness for fabricating the wood-based molding. |
著作権等: | The final publication is available at www.springerlink.com This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/154635 |
DOI(出版社版): | 10.1007/s10086-011-1214-x |
出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。