粘着剤として凝縮されていないリグニンを用いた粘着用木材
Guangxu Yang1, Zhenggang Gong1, Xiaolin Luo1
1College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou, China.
Nature
|August 8, 2023
まとめ
研究者らはバイオマスから リンニンベースの新しい木材接着剤を開発しました この持続可能な代替品は,様々な用途で伝統的なホルムアルデヒドベースの樹脂を代替する可能性を秘めています.
科学分野:
- 材料科学
- バイオテクノロジー
- 持続可能な化学
背景:
- 合板と木材製品は,通常,ホルムアルデヒドベースの樹脂 (尿素ホルムアルデヒド,フェノールホルムアルデヒド) を貼り付けに使用します.
- バイオマス由来リグニンは,樹脂合成における石油由来フェノルの潜在的持続可能な代替物です.
- 現在のリンニン・フェノル・フォーマルアルデヒド樹脂は,外観とコストに問題があり,産業での採用を制限しています.
研究 の 目的:
- リンゴセルロースのバイオマスから高性能なリンニンベースの木材接着剤を製造するためのシンプルで実用的な戦略を開発する.
- これらのリグニン接着剤を,従来の木材接着剤の代替品として,プレイス製造における有効性を評価する.
- 新型リンニン基粘着剤の粘着メカニズムを解明する.
主な方法:
- リグノセルロースバイオマスから非濃縮またはわずかに濃縮されたリグニンを分離する.
- 木材のファニールの接着剤として,リグニンと水のサスペンションを直接適用する.
- 様々な温度でリグニン接着剤で接着した木材のホットプレッシング.
- 粘着過程を理解するためのメカニズム研究
主要な成果:
- リグノセルロースバイオマスからリグニンベースの木材接着剤を成功裏に製造
- リグニン接着剤で接着したプレイスライド製品は優れた性能を示した.
- 熱圧圧温度の広い範囲で有効な粘着が達成されました.
- 粘着メカニズムは,水によるリグニンの軟化,血管の充填,細胞壁のクロスリンクを伴う.
結論:
- 開発された戦略は,効率的なリグニンベースの木材接着剤を生産するためのシンプルで実用的な方法を提供します.
- これらのリグニン接着剤は,伝統的な木材接着剤の持続可能な代替品として,さまざまな市場セグメントに期待されています.
- この発見は建築や家具産業における バイオベースの材料の進歩に寄与する.
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