Highly Expandable Foam for Lithographic 3D Printing
| Autor: | Jonathan K. Pokorski, Derek C. Church, Justin D. Hochberg, Sofia Gandarilla, David M. Wirth, Anna Jaquez |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Fabrication
Materials science business.industry Mechanical engineering 3D printing 02 engineering and technology Welding 021001 nanoscience & nanotechnology law.invention 020401 chemical engineering Machining law General Materials Science 0204 chemical engineering 0210 nano-technology Aerospace business Porosity Lithography Volume (compression) |
| Zdroj: | ACS Applied Materials & Interfaces. 12:19033-19043 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.0c02683 |
| Popis: | In modern manufacturing, it is a widely accepted limitation that the parts patterned by an additive or subtractive manufacturing process (i.e., a lathe, mill, or 3D printer) must be smaller than the machine itself that produced them. Once such parts are manufactured, they can be postprocessed, fastened together, welded, or adhesively bonded to form larger structures. We have developed a foaming prepolymer resin for lithographic additive manufacturing, which can be expanded after printing to produce parts up to 40× larger than their original volume. This allows for the fabrication of structures significantly larger than the build volume of the 3D printer that produced them. Complex geometries comprised of porous foams have implications in technologically demanding fields such as architecture, aerospace, energy, and biomedicine. This manuscript presents a comprehensive screening process for resin formulations, detailed analysis of printing parameters, and observed mechanical properties of the 3D-printed foams. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|