使用具有应力放松特性的可移动交叉连接材料的粘合系统的凝聚性性能的改进
Yunpeng Qian1, Ryohei Ikura1,2, Yusaku Kawai1
1Department of Macromolecular Science, Graduate School of Science, Osaka University. 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
ACS applied materials & interfaces
|December 20, 2023
概括
开发了一种使用单移动交叉网络 (SC) 材料的新型拓粘附系统. 这种先进的粘合剂表现出优越的粘合强度,性和自我修复性,性能优于传统的粘合剂.
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
- 粘附科学 粘附科学 粘附科学
背景情况:
- 开发适用于不同环境的强大的粘附系统至关重要.
- 传统的粘合剂难以平衡关键性质,如强度,性和自我修复性.
- 为了达到持久的粘附,需要优化能量消耗,自我恢复和爬行阻力.
研究的目的:
- 设计和合成一种具有增强机械性能的新型拓粘合系统.
- 为了研究可移动的交叉连接和重的堵塞在提高粘合性能中的作用.
- 为了评估粘附系统在不同的聚合物链流动性下的特性.
主要方法:
- 通过使用3 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 烯酸,N,N-二甲基烯酸胺 (DMAAm) 和γ-环氧化 (γ-CD) 单位合成单移性跨网络 (SC) 材料 [SC(DMAAm) Adh].
- 在聚合物网络中将g-CD单元作为可移动的交叉连接和重的堵塞器进行整合.
- 系统地改变含水量,以调节聚合物链的移动性和评估机械性能.
- 对SC (DMAAm) Adh与同聚合物 (P (DMAAm) Adh) 和共价交联聚合物 (CP (DMAAm) Adh) 的比较分析.
主要成果:
- 由于可移动的交叉连接,SC(DMAAm) Adh系统表现出更好的能耗和性.
- 高粘合强度和自我恢复特性通过重的γ-CD塞器实现.
- 可移动的交叉连接和重的堵塞的协同效应赋予了出色的爬行阻力.
- 在优化的含水状态下,SC ((DMAAm) Adh与P ((DMAAm) Adh和CP ((DMAAm) Adh相比表现出优越的机械性能.
结论:
- 开发的拓粘合系统有效地平衡了关键性能特性.
- 可移动的交叉连接和重的堵塞是先进的粘合材料的关键设计元素.
- 这种新的粘合系统为苛刻的应用提供了传统粘合剂的有希望的替代品.
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