Sheng Mingfei, Zhang Liping, West John Lawton, Fu Shaohai
Key Laboratory of Science & Technology of Eco-Textile, Jiangnan University, Ministry of Education, Wuxi, Jiangsu 214122, P.R. China.
Liquid Crystal Institute, Kent State University, Kent, Ohio 44242, United States.
ACS Appl Mater Interfaces. 2020 Jul 1;12(26):29728-29736. doi: 10.1021/acsami.0c09354. Epub 2020 Jun 22.
A new system of yolk-shell microcapsules containing two types of dye-doped liquid crystals was prepared via seed emulsion polymerization in which the synthetic process was mimicking plant respiration. The resulting system demonstrated reversible low voltage-driven switching between multispectral colored and transparent states. Moreover, wearable multicolor electrochromic fibers based on calcium alginate were produced via wet spinning to expand the application of yolk-shell dye-doped liquid crystal microcapsules. In addition to its long-term optical stability, the proposed cells and fibers also have satisfactory driving voltage values of color change (4.8 and 9.0 V), which are far lower than the human body safety voltage (12 V). We believe that the prepared microcapsules and fibers are potentially widely applicable in smart windows, electronic paper, and military camouflage clothing.
通过种子乳液聚合制备了一种包含两种染料掺杂液晶的新型蛋黄壳微胶囊系统，其合成过程模拟了植物呼吸。所得系统展示了在多光谱彩色和透明状态之间的可逆低电压驱动切换。此外，通过湿法纺丝制备了基于海藻酸钙的可穿戴多色电致变色纤维，以扩展蛋黄壳染料掺杂液晶微胶囊的应用。除了具有长期的光学稳定性外，所提出的电池和纤维还具有令人满意的颜色变化驱动电压值（4.8伏和9.0伏），远低于人体安全电压（12伏）。我们相信，所制备的微胶囊和纤维在智能窗户、电子纸和军事伪装服装中具有潜在的广泛应用。
