Direct 4D printing via active composite materials
Singapore University of Technology and Design · Georgia Institute of Technology · +2 more institutions
Abstract
We describe an approach to print composite polymers in high-resolution three-dimensional (3D) architectures that can be rapidly transformed to a new permanent configuration directly by heating. The permanent shape of a component results from the programmed time evolution of the printed shape upon heating via the design of the architecture and process parameters of a composite consisting of a glassy shape memory polymer and an elastomer that is programmed with a built-in compressive strain during photopolymerization. Upon heating, the shape memory polymer softens, releases the constraint on the strained elastomer, and allows the object to transform into a new permanent shape, which can then be reprogrammed into…
Citation impact
- FWCI
- 47.81
- Percentile
- 100%
- References
- 36
Authors
6Topics & keywords
- Composite number
- Computer science
- Materials science
- Nanotechnology
- Composite material