提高聚氨粘合剂的机械和粘合性能,使用氧化物修饰的乙二胺 (PPO-EDA)
Nam Gyu Jang1,2, Tran Quang Linh1,2, Mai Toan1
1Green Chemistry & Materials Group, Korea Institute of Industrial Technology (KITECH), Cheonan 31056, Republic of Korea.
Polymers
|January 25, 2025
概括
用氧化物修饰的乙烯基胺 (PPO-EDA) 通过提高机械强度和附着性来增强聚氨 (PU) 粘合剂. 这种新型交叉连接器与传统代理相比,提供了更高的性能,非常适合苛刻的应用.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 粘合技术的技术 粘合技术
背景情况:
- 聚氨 (PU) 粘合剂广泛使用,但可以从增强的机械和粘合性质中受益.
- 开发新的交叉连接器和链延长器对于优化PU粘合剂性能至关重要.
研究的目的:
- 研究氧化物修饰乙二胺 (PPO-EDA) 作为PU粘合剂中的新型交叉连接剂和链延长剂.
- 为了比较PPO-EDA与N,N'-二甲基乙二胺 (DMEDA) 的性能.
- 评估PPO-EDA对机械性能和粘附性能的影响.
主要方法:
- 合成的PPO-EDA. 的合成.
- 在PU粘合剂配方中,PPO-EDA与DMEDA的比较.
- 评估NCO转换,拉力强度,弹性模量和膝盖剪切强度.
- 在amin-silane处理的钢基板上测试粘附性.
主要成果:
- 在PU粘合剂中,PPO-EDA显著改善了NCO转换和交叉连接密度.
- 与DMEDA相比,PPO-EDA观察到增强的拉伸强度和弹性模量.
- 经过PPO-EDA修改的PU粘合剂表现出优越的膝盖剪切强度,特别是在经过处理的钢上.
- 作为链延长器和交叉连接器的PPO-EDA的双重作用改善了结构完整性.
结论:
- PPO-EDA是一种有效的修饰剂,可以增强基于PU的粘合剂的机械和粘合性能.
- PPO-EDA为优化高性能粘合剂提供了一个有前途的解决方案.
- 这些发现表明,在汽车和工业领域的潜在应用需要强大的粘合剂解决方案.
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