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中文摘要: 采用重结晶的方法纯化并超细化酞菁蓝，得到粒径为200~500 nm的超细化酞菁蓝晶体。通过表面改性的方法提高了酞菁蓝在四氯乙烯中的悬浮性能，得到了稳定的酞菁蓝电泳液。以脲醛树脂为壁材，电泳液为囊芯，采用“一步法”原位聚合制备了蓝色电子墨水微胶囊。扫描电子显微镜（SEM）照片表明，制得的微胶囊粒径为30~50 μm，球形规整，表面光滑。研究了影响微胶囊制备的关键因素，最佳的微胶囊制备条件为：聚乙烯醇和尿素的质量比为0.20，反应时间为3~4 h，pH为3~4，搅拌速率为500~700 r/min。
Abstract:Pigment phthalocyanine blue(PB) was purified and refined by recrystallization in alcohol solution to get 200-500 nm rod like PB crystals. Octadecylamine was used to modify the surface and improve the dispersion in tetrachloroethylene of PB crystals. Microcapsules containing the PB E ink were successfully prepared by in situ polymerization of urea and formaldehyde. Scanning electron microscope (SEM) images showed that the microcapsules had a regular spherical shape with a particle size of 30-50 μm and a smooth surface. The optimum conditions of the preparation were confirmed as: the mass ratio of surfactant poly(vinyl alcohol) to urea, 0.2; reaction time, 3-4 h; pH, 3-4; stirring rate, 500-700 r/min.
keywords: microcapsule phthalocyanine blue ultrafining urea formaldehyde resin in situ polymerization
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| 作者 | 单位 | |
| 由常泉 | 上海交通大学化学化工学院， 上海 200240 | ychq@sjtu.edu.cn |
| 潘道成 | 上海交通大学化学化工学院， 上海 200241 | |
| 路庆华 | 上海交通大学化学化工学院， 上海 200242 | qhlu@sjtu.edu.cn |
引用本文：
由常泉,潘道成,路庆华.包覆酞菁蓝电泳液的脲醛树脂微胶囊的制备与表征[J].功能高分子学报,2013,26(1):.
YOU Chang quan,PAN Dao cheng,LU Qing hua.Preparation and Characterization of Poly(urea formaldehyde) Microcapsules Containing Phthalocyanine Blue E-ink[J].Journal of Functional Polymers,2013,26(1):.
由常泉,潘道成,路庆华.包覆酞菁蓝电泳液的脲醛树脂微胶囊的制备与表征[J].功能高分子学报,2013,26(1):.
YOU Chang quan,PAN Dao cheng,LU Qing hua.Preparation and Characterization of Poly(urea formaldehyde) Microcapsules Containing Phthalocyanine Blue E-ink[J].Journal of Functional Polymers,2013,26(1):.
