环氧树脂
三乙烯四胺
材料科学
傅里叶变换红外光谱
固化(化学)
复合材料
扫描电子显微镜
聚合
自愈
化学工程
聚合物
化学
有机化学
工程类
病理
医学
替代医学
作者
Zhuo Ni,Zhenghong Guo,Yu Hao Lin
出处
期刊:Key Engineering Materials
日期:2020-05-01
卷期号:842: 3-9
标识
DOI:10.4028/www.scientific.net/kem.842.3
摘要
Self-healing epoxy resin microcapsules are prepared by interfacial polymerization, in which the core materials are epoxy resin, the wall materials are constructed with triethylenetetramine and the epoxy resin. The orthogonal experimental L 9 (3 4 ) are designed to investigate the influence of emulsifier dosage, hardener dosage, curing temperature and hardener adding rate on the core content and storage life of epoxy resin microcapsule. Scanning electron microscope is used to characterize surface topography and distribution. Fourier transform infrared spectroscopy is used to study reaction mechanism of the microcapsule wall materials, respectively. The results indicate that when the dosage of emulsifier is 1.2%, the dosage of hardener is 1.2%, the hardener droplets adding rate is 1.2 g/h and the curing temperature is 50°C, the prepared microcapsules with a high level of core content are spherical in shape with good surface compactness and dispersibility. Future research may focus on improving microcapsule storage stability and the obstacles encountered in practical applications.
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