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从幼树木的纸行业残留物中利用聚烯:粘合剂应用的潜力
Lucía Xavier1, Rodrigo Coniglio1, Fabián Bermúdez1
1Institute of Chemical Engineering, Faculty of Engineering, Universidad de la República, Julio Herrera y Reissig 565, Montevideo, Uruguay.
Bioresources and bioprocessing
|July 11, 2025
概括
树木废弃物可用于提取多,用于甲 (PF) 粘合剂的潜在用途. 10%的替代品显示了可接受的强度,表明可持续粘合剂配方的前景.
科学领域:
- 木材化学 木材化学
- 聚合物科学 聚合物科学
- 可持续材料 可持续材料
背景情况:
- 为了生产纸而加工木材会产生大量的残留物,主要是年轻的树木,这给价值化带来了挑战.
- 目前的工业实践往往涉及燃烧木材残留物以获取能源,这代表了错失了更高价值应用的机会.
- 来自木材的多因其在粘合剂配方中的潜力和作为天然抗氧化剂而得到认可.
研究的目的:
- 探索从树木残留物中提取多的方法.
- 评估这些提取物作为粘合剂中甲 (PF) 树脂的部分替代品的适用性.
- 评估提取物替代对粘合剂性能的影响,并探索替代应用.
主要方法:
- 使用氧化和硫化的固体液体提取方法被采用.
- 使用实验设计优化了提取条件 (试剂充电,温度).
- 提取物以含量,凝结素,抗氧化活性和Stiasny数进行了表征.
- -甲粘合剂的配方分别为10%,20%和30%的提取物替代.
主要成果:
- 优化的提取产生了具有显著抗氧化活性的多化合物.
- 使用10%提取物替代的粘合剂表现出可接受的拉力剪切强度.
- 较高的替代水平 (20%和30%) 导致粘合剂性能下降.
- 斯蒂亚斯尼号码表明了PF粘合剂配方中交叉链接的潜力.
结论:
- 树木残留物可以成为用于部分替代PF树脂的多的可行来源.
- 在保持可接受性能的同时,在PF粘合剂中适度替代 (10%) 是可行的.
- 提取物的高抗氧化能力表明,除了粘合剂之外,还有可能有高价值的应用.
- 进一步的配方优化可能会在更高的替代水平上提高性能,促进循环经济原则.
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