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聚氨生物基粘合剂的合成和机械性能是由于林氏纤维素生物质的脱聚合而产生的
Edina Rusen1, Gabriela Toader2, Aurel Diacon1,2
1Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania.
ACS omega
|October 23, 2023
概括
这项研究将宽叶粉转化为用于木材粘合的有价值的聚氨粘合剂. 这些生物质衍生粘合剂在室内应用中显示出有前途的机械性能.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 可持续化学 可持续化学
背景情况:
- 生物质废弃物,如粉,提出了处置挑战,并代表了一个未充分利用的资源.
- 生物质废弃物的利用可以导致可持续的材料,并减少对环境的影响.
- 聚氨粘合剂广泛用于木材粘合应用.
研究的目的:
- 将宽叶粉提升为室内应用的高价值产品.
- 开发使用化学加工生物质的新型聚氨粘合剂配方.
- 评估这些生物质衍生粘合剂的性能和特性.
主要方法:
- 宽叶粉在酸催化下使用乙烯甘醇通过溶解进行化学处理.
- 由此产生的产品被纳入了六种不同的聚氨粘合剂配方.
- 使用富里埃变换红外光谱学 (FT-IR),热重力测量分析 (TGA) 和动态机械分析 (DMA) 进行了粘合膜的表征.
- 通过拉力和三点曲试验来评估机械性能,并提出了一种创新方法来确定工作时间.
- 使用扫描电子显微镜 (SEM) 分析了结合区域,并进行了二维 (2D) 模拟.
主要成果:
- 该研究成功地从宽叶粉中生产了聚氨粘合剂.
- 鉴定揭示了粘合膜的特性.
- 机械测试证明了粘合剂在木材粘合中的性能.
- 在SEM分析中,我们了解了绑定界面的洞察力.
- 2D模拟有助于将机械性能与粘合剂结构和配方相关联.
结论:
- 宽叶粉可以有效地利用为聚氨粘合剂,用于木材粘合.
- 开发的粘合剂具有适合室内应用的性能.
- 这项研究有助于可持续的材料开发和废物利用.
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