作为聚氨粘合剂的潜在硬化剂的新型furfural衍生聚胺
Tankut Türel1, Berend Eling2, Anna M Cristadoro3
1Polymer Performance Materials Group, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.
ACS applied materials & interfaces
|January 29, 2024
概括
从生物基基甲基酸衍生出的新型胺为聚氨系统中的水泡和气味问题提供了解决方案. 这些隐性硬化剂使无泡和无气味的件具有可调节的机械性能,可用于先进的粘合剂应用.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
背景情况:
- 固化湿度的单组合聚氨系统可能会因为固化过程中被困的二氧化碳而形成水泡.
- 这一问题往往是使用隐性硬化剂,如阻塞聚氨酸,但这些可以在激活时释放不愉快的气味解决.
- 开发有效的隐性硬化剂,避免这些缺点,对于改善聚氨应用至关重要.
研究的目的:
- 用生物基基甲基作为潜伏硬化剂合成新型二和三功能阿尔迪明.
- 评估这些阿尔迪明在加湿聚氨系统中的性能,重点是消除水泡和气味.
- 为了将产生的聚合物的机械性能与网络密度和阿尔迪米因水解率相关联.
主要方法:
- 通过化与化的甲基化合成阿尔迪明,然后与商业聚胺进行凝结.
- 将合成的阿尔迪明纳入模拟的造用聚氨加湿固化系统中.
- 在固化过程中评估泡和气味的形成,并评估最终件的机械性能 (例如粘附性).
主要成果:
- 合成的阿尔迪明成功地防止了聚氨件中的水泡和气味形成.
- 发现机械性能,包括粘合性质,取决于聚合物网络密度,而聚合物网络密度受阿尔迪米因水解速率的影响.
- 来自聚乙胺和1,5-氨基-2-甲基坦的阿尔迪胺表现出特别强的粘合性.
结论:
- 新型基于生物的阿尔迪明作为有效的隐性硬化剂,使得无泡和无味的聚氨材料的生产成为可能.
- 开发的阿尔迪明为调整聚合物网络密度和在粘合剂和涂层应用中的机械性能提供了一个多功能平台.
- 这项研究提出了一项有前途的战略,以提高防潮聚氨系统的质量和应用范围.
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