On the 3D printability of one-part moisture-curable polyurethanes via direct ink writing (DIW)
- Univ. of Tennessee, Knoxville, TN (United States)
- Case Western Reserve Univ., Cleveland, OH (United States); Novagard Solutions, Cleveland, OH
- Case Western Reserve Univ., Cleveland, OH (United States)
- Univ. of Tennessee, Knoxville, TN (United States); Case Western Reserve Univ., Cleveland, OH (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Direct ink writing (DIW) is an ambient temperature additive manufacturing (AM) method that accommodates many possible ink materials. Here, in this work, we demonstrate using a moisture-curable commercially available polyurethane (PU) sealant as an alternative ink for DIW. We discussed the fundamentals of PU chemistry and determined the best 3D printing parameters. Studies on rheological, thermogravimetric, spectroscopic characterization, and initial finite element analyses (FEA) showed properties expected from a performance sealant with high elongation and low modulus of a 3D-printed object. This affirms the flexibility of the DIW technique as an accessible AM method amenable for future materials development from commercial model formulations.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1999015
- Journal Information:
- MRS communications, Journal Name: MRS communications Journal Issue: 4 Vol. 13; ISSN 2159-6867
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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