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投稿时间：2009-04-24
投稿时间：2009-04-24
中文摘要: 为了提高脲醛树脂微胶囊的稳定性，选择化学结构不同的聚乙烯醇、苯酚、三聚氰胺对脲醛树脂进行了改性。通过优化反应条件，得到了具有良好耐热、耐水性的脲醛树脂微胶囊。采用光学显微镜观测了微胶囊的形貌；用FT-IR表征了微胶囊的化学结构；用TGA分析了微胶囊的热性能。研究结果表明：3种改性后的微胶囊的热稳定性均有所提高，其中苯酚改性的微胶囊热稳定性最好；聚乙烯醇改性微胶囊的疏水性下降，苯酚和三聚氰胺改性的微胶囊的疏水性都有所增强。
Abstract:In order to improve the property of water-resistantce and aging stability of urea-formaldehyde microcapsule, melamine, polyvinyl alcohol and phenol were added for the modification, respectively. Microcapsules with good heat-resistance and water-resistance can be obtained by optimizing the reaction conditions. The surface feature of the microcapsule was recorded with optical microscopy (OM). Microstructure of the microcapsule was confirmed with Fourier transform-infrared spectroscopy (FT-IR). Thermal properties of the microcapsules were analyzed with thermogravimetric analysis (TGA). The results show that thermal stability of the three modified microcapsules are all improved, while phenol-microcapsules have the best thermal stability; hydrophobicity of both melamine microcapsule and phenol-microcapsule are enhanced, while weakened for PVA microcapsule.
keywords: urea-formaldehyde resin microcapsule modification heat resistance water resistance boiled water resistance
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| Author Name | Affiliation | |
| zhangmin@sust.edu.cn | ||
引用本文：
张敏,张婷,童晓梅,陈峰,张国宏,邱建辉.脲醛树脂微胶囊的改性[J].功能高分子学报,2009,(3):270-275.
.Modification of Urea-Formaldehyde Microcapsule[J].Journal of Functional Polymers,2009,(3):270-275.
张敏,张婷,童晓梅,陈峰,张国宏,邱建辉.脲醛树脂微胶囊的改性[J].功能高分子学报,2009,(3):270-275.
.Modification of Urea-Formaldehyde Microcapsule[J].Journal of Functional Polymers,2009,(3):270-275.
