| 摘要: |
| 目的 保护液晶特有的光学色彩不被外界侵蚀，为使液晶能够二次应用于工业产品中，实现多壳液晶微胶囊的包覆。方法 采取不同种类的有机化合物囊壳物质（壁材），再通过不同种类（如乳液、接枝、溶液）聚合方法的交互作用制造多壳液晶微胶囊，即第1壳层以带有不同电荷的2种亲水胶体作为壁材，第2壳层以通过透明有机化合物单体形成的聚合物作为壁材。同时，在第1壳层与第2壳层之间构筑一层互穿网络的“高分子合金”过渡层。结果 成功研制了颗粒尺寸在12 μm以内的多壳液晶微胶囊，可有效呈现色彩变化，且结构强度满足印刷工艺需求。结论 研制的微胶囊壳为3层结构，胶囊整体结实、耐酸碱、不易受环境影响，可有效保护液晶独有的光学异彩，能二次应用于工业产品中，达到了预期的研究目标。 |
| 关键词: 液晶 包覆 微胶囊 印刷 |
| DOI：10.19554/j.cnki.1001-3563.2019.09.011 |
| 分类号:O753.2 |
| 基金项目: |
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| Coating and Printing Application of Multi-shell Liquid Crystal Microcapsule |
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WU Jun1,2, XIAO Wu2, SHEN Rong-bo2, YANG Wei-dong2, SHEN Hai-sheng2, WANG Long-sheng2, CHEN Jun-zhong2, ZHANG Chao-zhong2
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1.Beijing Institute of Graphic Communication, Beijing 102600, China;2.Yongfa Printing (Dongguan) Co., Ltd., Dongguan 523821, China
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| Abstract: |
| The paper aims to protect the optical color of liquid crystal from external erosion, so that liquid crystal can be used in industry twice to achieve multi-shell microcapsule coating. Different types of organic compound capsule materials (wall materials) were used, and multi-shell liquid crystal microcapsules were produced by the interaction of different kinds of polymerization methods such as emulsion, grafting and solution. The first shell was made of two hydrophilic colloids with different charges, the second shell was made of polymers formed by transparent organic compounds monomers as wall materials, and an alloy transition layer of interpenetrating polymer network was constructed between the first shell and the second shell. The encapsulation of multi-shell liquid crystal microcapsules with particle size of 12 μm was successfully completed. The color change can be effectively presented and the structural strength met the printing requirements. The microcapsules developed have 3 layers of structure. They are strong, acid and alkali resistant, not susceptible to environmental impact, and can effectively protect the unique optical brilliance of liquid crystal. They can be used in industrial products for a second time and achieve the desired research objectives. |
| Key words: liquid crystal coating microcapsule printing |
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