3D打印手性液晶智能材料研究进展

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关键词：手性液晶；3D打印；结构色；圆偏振发光；刺激响应

中图分类号： O753+.2 文献标识码：A  doi：10.37188/CJLCD.2024-0243 CSTR：32172.14.CJLCD.2024-0243

Recent advancesin 3D printed smart chiral liquid crystals

Abstract：Chiral liquid crystals is a unique photonic material，which can be generally divided into 1D cholesteric liquid crystals and 3D blue phase liquid crystals. Benefiting from the intrinsic periodically arranged nanostructures，chiral liquid crystals not only has the optical properties that ordinary liquid crystals does not have，such as selective reflection，optical activity and circular dichroism，but also can quickly and sensitively respond to external environmental conditions，which are widely used in the fields of advanced display，dynamic anti-counterfeiting，information encryption，intelligent fabrics and so on. In recent years，with the vigorous development of 3D printing technology，researchers have developed a variety of printable chiral liquid crystal inks，prepared chiral liquid crystal materials with complex geometric structure，multi-function，and multi-stimulus-response，and further studied the potential application value of 3D printing chiral liquid crystal. In this paper，the self-assembly mechanisms of chiral liquid crystals based on 3D printing technology are systematically reviewed，such as shear-induced orientation self-assembly，anisotropic desweling self-assembly，critical collid concentrationselfassembly，and various stimulus-responsive chiral liquid crystal materials and chiral liquid crystal functional materials with fluorescent luminescence based on 3D printing technology are mainly introduced.Finally， we summarized the prospects and potential challenges of 3D printing chiral liquid crystal materials.

Key words： chiral liquid crystals；3D printing；structural colors； circularly polarized luminescence; stimulus responses

1引言

液晶是一种将液体的流动性与晶体的有序性结合在一起的功能材料[1]。（剩余36038字）