Vat photopolymerization 3D printed flexible polymer foams are applicable to thermal insulation, sound absorption, noise reduction, and biomedicine but the high cross-linking density of the generally used resin prevents their further processing into foam parts. Here, the authors show an additive manufacturing polyurethane foam preparation method to balance fabrication accuracy and expansion ratio.
- Haoyu Gao
- Xianmei Huang
- Lixin Wu
