Department of Mechanical Engineering, Union College.
Department of Chemistry, Union College.
J Vis Exp. 2021 Mar 12(169). doi: 10.3791/61986.
A procedure for aesthetically enhancing silica aerogel monoliths by laser etching and incorporation of dyes is described in this manuscript. Using a rapid supercritical extraction method, large silica aerogel monolith (10 cm x 11 cm x 1.5 cm) can be fabricated in about 10 h. Dyes incorporated into the precursor mixture result in yellow-, pink- and orange-tinged aerogels. Text, patterns, and images can be etched onto the surface (or surfaces) of the aerogel monolith without damaging the bulk structure. The laser engraver can be used to cut shapes from the aerogel and form colorful mosaics.
本文介绍了一种通过激光刻蚀和染料掺入来美化二氧化硅气凝胶整体的方法。使用快速超临界提取方法，可以在大约 10 小时内制备出大型二氧化硅气凝胶整体（10 cm x 11 cm x 1.5 cm）。掺入前体混合物中的染料会导致气凝胶呈黄色、粉红色和橙色。可以在不损坏整体结构的情况下将文字、图案和图像刻蚀到气凝胶的表面（或表面）上。激光雕刻机能从气凝胶上切割形状并形成彩色马赛克。
