合成,表征和高反应性和可持续性热聚氨粘合剂的性能评估,这些粘合剂来自基于氨酸的多聚合物
Shazia Naheed1, Sadia Afsheen2, Muhammad Zuber3
1Department of Applied Chemistry, Government College University, Faisalabad 38000, Pakistan.
ACS omega
|October 27, 2025
概括
这项研究开发了可持续的聚氨热粘合剂,这些粘合剂来自废弃的木质素和SiO2纳米粒子. 生物基粘合剂在各种应用中表现出优异的热稳定性和强大的粘合性能.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续化学 可持续化学
背景情况:
- 纸业的废弃副产品 - - 宁是可再生芳香聚合物的丰富来源.
- 从可持续资源开发高性能粘合剂对于减少对石油基材料的依赖至关重要.
研究的目的:
- 为了合成和表征使用废物宁的新型聚氨热粘合剂.
- 通过氧甲基化来增强素的反应性,以改善聚合.
- 结合SiO2纳米颗粒来增强机械性能,并研究粘合性能.
主要方法:
- 从废物中分离红素,然后进行氧甲基化.
- 改性木质素的聚合与4,4'-甲基二二酸 (MDI),聚乙烯糖醇 (PEG) 和1,4-butanediol (BDO).
- 使用FT-IR,SEM,XRD,TGA/DSC进行表征,并评估粘合性质 (粘度,软化温度,T皮强度).
主要成果:
- 通过FT-IR证实了基于素的聚氨热粘合剂 (HMPUA) 的成功合成.
- 通过TGA/DSC和SEM/XRD观察到增强的热稳定性和明显的结晶性.
- 显示出强大的粘合性能,HMPUA-4显示出最佳的性能和可持续性.
结论:
- 废物素可以有效地利用来制造高性能,可持续的聚氨热粘合剂.
- 加入SiO2纳米颗粒和优化素含量产生了优越的粘合特性.
- 开发的生物基粘合剂在各种工业应用中显示出有前途的潜力,包括那些受益于素固有的抗菌活性.
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