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Innovative Synthesis of Durable Polylactic Acid-Thermoplastic Polyurethane Elastomer Composites for Three-Dimensional Printing Applications
- Issue Date
- Nov-2023
- Publisher
- 한국고분자학회
- Keywords
- 3D printing; cardanol; dynamic reaction; fused deposition modeling; polylactic acid
- Citation
- 폴리머, v.47, no.6, pp 711 - 719
- Pages
- 9
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- 폴리머
- Volume
- 47
- Number
- 6
- Start Page
- 711
- End Page
- 719
- ISSN
- 0379-153X
2234-8077
- Abstract
- The functionalization of polylactic acid (PLA) is examined by grafting cardanol onto its main backbone chain through a dynamic reaction to improve compatibility between PLA and thermoplastic polyurethane (TPU). Cardanol-grafted PLA (PLAC)/TPU blend-based filaments for fused deposition modeling are tested using melt extrusion. Effects of PLAC grafting ratio on the rheological properties and thermal transformation of the PLAC/TPU blends and the mechanical properties of three-dimensional-printed parts are investigated. A decrease in the glass transition temperature and crystallinity from differential scanning calorimetry are observed with increasing cardanol concentration, implying improved miscibility between PLAC and TPU and as a result, PLAC/TPU blends exhibit improved toughness. © 2023 The Polymer Society of Korea. All rights reserved.
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