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| Main Authors: | , , , , , , |
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| Format: | Artículo Open Access |
| Published: |
Wiley
2025
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| Subjects: | |
| Online Access: | https://onlinelibrary.wiley.com/doi/10.1002/app.57560 |
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Table of Contents:
- Effect of Polyethylene Terephthalate Glycol‐Rich Olefins Blends: Mechanical, Thermal, Shape Memory Effect, and Morphological Properties via Direct Material Extrusion Additive Manufacturing Yanliang Jie Shujun Yan Lei Hao Xueli Zhang Jizhe Duan Hao Ju Zhe Wu Journal of Applied Polymer Science ABSTRACTThis study explores the potential of polyethylene terephthalate glycol‐rich polyolefin blends (PP + 70 wt% PETG, HDPE + 70 wt% PETG, LDPE + 70 wt% PETG) for advanced additive manufacturing, leveraging direct granule extrusion to create functionally responsive 3D‐printed composites. Mechanical, shape memory, thermomechanical, and thermal properties were assessed, revealing distinct blend capabilities: HDPE + 70 wt% PETG achieved superior tensile (23.04 MPa) and flexural strength (70.2 MPa) due to high crystallinity (60%–80%), LDPE + 70 wt% PETG excelled in shape memory (90.08% recovery, 96% fixity) and flexibility (flexural strength: 34.8 MPa), while PP + 70 wt% PETG balanced stiffness and ductility (flexural strength: 51.52 MPa, elongation: 84.71%). DMTA highlighted matrix‐dependent viscoelasticity (HDPE + 70 wt% PETG tan δ peak: 1.13 at 88.5°C), and TGA confirmed thermal stability (onset: 273°C–298°C). SEM revealed LDPE + 70 wt% PETG's uniform deposition, contrasting with interfacial voids in HDPE + 70 wt% PETG and PP + 70 wt% PETG. These findings position PETG‐rich polyolefin blends as promising candidates for innovative 3D‐printed applications, with print quality and morphology driving performance. 10.1002/app.57560 http://onlinelibrary.wiley.com/termsAndConditions#vor