双动态交联环氧玻璃材料用于强,可拆卸和可回收的粘合剂
Xiaoyu Huang1, Chen Ding1, Yichun Wang1
1School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China.
ACS applied materials & interfaces
|July 10, 2024
概括
这项研究介绍了一种新型可再加工的热固化粘合剂 (RTA),具有快速粘合,高强度和自我愈合. 新的玻璃粘合剂DAx-DTSAy为可持续材料应用提供了出色的可回收性和拆卸性.
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
- 粘合剂技术 技术 粘合剂技术
背景情况:
- 可回收热固化粘合剂 (RTA) 正因其可持续性益处而受到越来越多的关注.
- 开发具有快速粘附,高强度和自我愈合的RTA仍然是一个挑战.
研究的目的:
- 开发一种具有增强再处理性,快速粘附性和自我愈合性质的新型玻璃粘剂 (DAx-DTSAy).
- 评估新RTA的机械性能,自我修复能力和可回收性.
主要方法:
- 通过调整刚性和灵活的细分,合成了一种新型玻璃化物DAx-DTSAy.
- 研究了双动态共价键 (基和二硫化) 对应力放松的影响.
- 评估了机械性能 (拉力强度,膝盖剪切强度),自愈效率和再加工能力.
主要成果:
- DAx-DTSAy的最大拉伸强度达到了35.92 MPa.
- 由于双动态键,观察到快速的应力放松,完全放松的时间比对照人短13.6倍.
- 证明了高自愈 (91.8%的恢复) 和再处理能力 (120.2%的抗拉强度恢复3个循环后).
- 在15分钟内,不钢的拉皮切割强度达到18.18MPa,在5个反弹周期后恢复了91.9%.
结论:
- DAx-DTSAy具有出色的粘合强度,快速粘合,自我修复和再加工能力,使其成为高性能RTA.
- 双动态债券和量身定制的细分比率的协同效应有助于其卓越的特性.
- DAx-DTSAy为电子和运输领域的传统粘合剂提供了一个可持续的替代品.
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