| 张洪月,王倩,王冬,田思思,赵彤.化学通报,2020,83(12):1122-1126. |
| 胆甾相液晶微胶囊制备与表征 |
| Preparation and Characterization of Cholesteric Liquid Crystal Microcapsules |
| 投稿时间：2020-06-10 修订日期：2020-07-22 |
| DOI： |
| 中文关键词: 液晶 微胶囊化 薄膜 显色 粒径分布 |
| 英文关键词:Liquid crystal Microencapsulation Dispersion Color development Particle size distribution |
| 基金项目:中国科学院化学研究所创新培育项目（CXPY-17）和中央高校基本科研业务费（FRF-GF-19-003B）资助 |
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| 中文摘要: |
| 为了实现液晶的分散和保护，开展了胆甾相液晶的包覆研究。通过扫描电镜和激光粒度仪等分析手段探究了液晶微胶囊的形貌及粒径分布范围，利用傅里叶变换红外光谱确认了液晶微胶囊的组成，通过偏光显微镜研究液晶微胶囊在加热前后的光学特性。当原料投入比为5∶4、剪切速率为7000r/min、剪切时间为10min、乳化剂HSMA用量为5mL时，所制备胆甾相液晶微胶囊具有单分散性好、显色性优、耐高温能力强等优点，可以制成热致变色液晶膜。 |
| 英文摘要: |
| In order to achieve the dispersion and protection of liquid crystals, the encapsulation of cholesteric liquid crystal (CLC) was carried out. Liquid crystal microcapsules were prepared by a free radical polymerization and their morphology and size distribution were explored by using SEM and laser particle size analyzer and other analysis methods. The composition of liquid crystal microcapsules was proved by FT-IR spectrometer, and the optical characteristics of them heated before and after was investegated by polarizing optical microscope (POM). When the raw material input ratio is 5:4, the shear rate is 7000 r/min, the shear time is 10min, and the dosage of emulsifier (HSMA) is 5mL, the prepared CLC microcapsules have the advantages of good monodispersity, excellent color rendering, high temperature resistance, and can be made into thermochromic liquid crystal film. |
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