Department of Applied Science and Technology , Politecnico di Torino , Corso Duca degli Abruzzi 24 , Torino 10129 , Italy.
Center for Sustainable Future Technologies @Polito , Istituto Italiano di Tecnologia , Corso Trento 21 , Torino 10129 , Italy.
ACS Appl Mater Interfaces. 2018 Nov 14;10(45):39319-39326. doi: 10.1021/acsami.8b16036. Epub 2018 Oct 31.
In this work, we propose an innovative strategy for obtaining functional objects employing a light-activated three-dimensional (3D) printing process without affecting the materials' printability. In particular, a dye is a necessary ingredient in a formulation for a digital light processing 3D printing method to obtain precise and complex structures. Here, we use a photoluminescent dye specifically synthesized for this purpose that enables the production of 3D printed waveguides and splitters able to guide the luminescence. Moreover, copolymerizing the dye with the polymeric network during the printing process, we are able to maintain the solvatochromic properties of the dye toward different solvents in the printed structures, enabling the development of solvents' polarity sensors.
在这项工作中，我们提出了一种创新的策略，通过使用光激活的三维（3D）打印工艺来获得功能物体，而不会影响材料的可打印性。特别是，染料是数字光处理 3D 打印方法配方中的必要成分，用于获得精确和复杂的结构。在这里，我们使用专门为此目的合成的光致发光染料，能够生产能够引导发光的 3D 打印波导和分束器。此外，通过在打印过程中将染料与聚合物网络共聚，我们能够保持染料在打印结构中对不同溶剂的溶剂变色性质，从而能够开发出溶剂极性传感器。
