Department of Chemical & Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States.
ACS Appl Mater Interfaces. 2013 Feb;5(3):815-21. doi: 10.1021/am302383v. Epub 2013 Jan 25.
The Diels-Alder reaction was used to yield thermal reversibility of the bonding between a partially furan-functionalized epoxy thermosetting matrix and a maleimide-treated glass fiber. Under ambient temperature conditions, the covalent bond forming product reaction dominates, but this reaction reverses at elevated temperatures to allow for interfacial healing. Single-fiber microdroplet pull-out testing was used to characterize the coupled effects of healing temperature and the glass transition temperature (T(g)) of the epoxy on interfacial strength recovery. In particular, the roles of mobility and reaction kinetics were independently varied to understand the individual effects of both.
狄尔斯-阿尔德反应用于生成部分呋喃功能化环氧树脂热固性基质与马来酰亚胺处理的玻璃纤维之间键合的热可逆性。在环境温度条件下，形成共价键的产物反应占主导地位，但该反应在高温下会逆转，以允许界面愈合。单纤维微滴拔出试验用于表征愈合温度和环氧树脂玻璃化转变温度（T(g)）对界面强度恢复的耦合效应。特别是，分别改变了移动性和反应动力学，以了解两者各自的影响。
