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Quiñonez PA, Ugarte-Sanchez L, Bermudez D, Chinolla P, Dueck R, Cavender-Word TJ, Roberson DA. Design of Shape Memory Thermoplastic Material Systems for FDM-Type Additive Manufacturing. Materials (Basel) 2021; 14:ma14154254. [PMID: 34361448 PMCID: PMC8347899 DOI: 10.3390/ma14154254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 11/16/2022]
Abstract
The work presented here describes a paradigm for the design of materials for additive manufacturing platforms based on taking advantage of unique physical properties imparted upon the material by the fabrication process. We sought to further investigate past work with binary shape memory polymer blends, which indicated that phase texturization caused by the fused filament fabrication (FFF) process enhanced shape memory properties. In this work, two multi-constituent shape memory polymer systems were developed where the miscibility parameter was the guide in material selection. A comparison with injection molded specimens was also carried out to further investigate the ability of the FFF process to enable enhanced shape memory characteristics as compared to other manufacturing methods. It was found that blend combinations with more closely matching miscibility parameters were more apt at yielding reliable shape memory polymer systems. However, when miscibility parameters differed, a pathway towards the creation of shape memory polymer systems capable of maintaining more than one temporary shape at a time was potentially realized. Additional aspects related to impact modifying of rigid thermoplastics as well as thermomechanical processing on induced crystallinity are also explored. Overall, this work serves as another example in the advancement of additive manufacturing via materials development.
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Affiliation(s)
- Paulina A. Quiñonez
- Polymer Extrusion Lab, The University of Texas at El Paso, El Paso, TX 79968, USA; (P.A.Q.); (L.U.-S.); (D.B.); (P.C.); (R.D.); (T.J.C.-W.)
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA
| | - Leticia Ugarte-Sanchez
- Polymer Extrusion Lab, The University of Texas at El Paso, El Paso, TX 79968, USA; (P.A.Q.); (L.U.-S.); (D.B.); (P.C.); (R.D.); (T.J.C.-W.)
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA
| | - Diego Bermudez
- Polymer Extrusion Lab, The University of Texas at El Paso, El Paso, TX 79968, USA; (P.A.Q.); (L.U.-S.); (D.B.); (P.C.); (R.D.); (T.J.C.-W.)
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA
| | - Paulina Chinolla
- Polymer Extrusion Lab, The University of Texas at El Paso, El Paso, TX 79968, USA; (P.A.Q.); (L.U.-S.); (D.B.); (P.C.); (R.D.); (T.J.C.-W.)
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA
| | - Rhyan Dueck
- Polymer Extrusion Lab, The University of Texas at El Paso, El Paso, TX 79968, USA; (P.A.Q.); (L.U.-S.); (D.B.); (P.C.); (R.D.); (T.J.C.-W.)
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA
| | - Truman J. Cavender-Word
- Polymer Extrusion Lab, The University of Texas at El Paso, El Paso, TX 79968, USA; (P.A.Q.); (L.U.-S.); (D.B.); (P.C.); (R.D.); (T.J.C.-W.)
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA
| | - David A. Roberson
- Polymer Extrusion Lab, The University of Texas at El Paso, El Paso, TX 79968, USA; (P.A.Q.); (L.U.-S.); (D.B.); (P.C.); (R.D.); (T.J.C.-W.)
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA
- Correspondence: ; Tel.: +1-915-747-5924
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