Lee Chang-Uk, Chin Kyle C H, Boydston Andrew J
Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States.
Department of Chemical and Biological Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States.
ACS Appl Mater Interfaces. 2023 Mar 29;15(12):16072-16078. doi: 10.1021/acsami.3c00365. Epub 2023 Mar 20.
Direct additive manufacturing (AM) of commercial silicones is an unmet need with high demand. We report a new technology, heating at a patterned photothermal interface (HAPPI), which achieves AM of commercial thermoset resins without any chemical modifications. HAPPI integrates desirable aspects of stereolithography with the thermally driven chemical modalities of commercial silicone formulations. In this way, HAPPI combines the geometric advantages of vat photopolymerization with the materials properties of, for example, injection molded silicones. We describe the realization of the new technology, HAPPI printing using a commercial Sylgard 184 polydimethylsiloxane resin, comparative analyses of material properties, and demonstration of HAPPI in targeted applications.
商业化有机硅的直接增材制造（AM）是一项尚未满足的高需求领域。我们报道了一种新技术，即图案化光热界面加热（HAPPI），它无需任何化学改性即可实现商业化热固性树脂的增材制造。HAPPI将立体光刻的理想特性与商业化有机硅配方的热驱动化学模式相结合。通过这种方式，HAPPI将光固化成型的几何优势与例如注塑成型有机硅的材料特性结合起来。我们描述了这项新技术的实现，即使用商业化的西尔高184聚二甲基硅氧烷树脂进行HAPPI打印、材料性能的对比分析以及HAPPI在目标应用中的演示。
