Hyperbranched polyester improves the dispersion of SiO2 for enhancing the mechanical properties of DLP 3D printing polyurethane acrylate

• Published in: Polymer engineering and science Vol. 65; no. 5; pp. 2268 - 2281
• Main Authors: Zhao, Xiaoliang, Jiao, Hua, Yao, Yijun, Du, Bin, Zhao, Kang
• Format: Journal Article
• Language: English
• Published: Hoboken, USA John Wiley & Sons, Inc 01.05.2025; Blackwell Publishing Ltd
• Subjects: 3-D printers; 3D printing; Bend strength; Chromatography; Composite materials; Fourier transforms; Gel chromatography; hyperbranched unsaturated polyester; Mechanical properties; Nanoparticles; NMR; Nuclear magnetic resonance; Photocuring; Polyesters; polyurethane acrylate composites; Polyurethane resins; Silicon dioxide; SiO2; Tensile strength; Thermal stability; Three dimensional printing

Herein, we prepared the high‐strength polyurethane acrylate (PUA) composites by introducing the γ‐methacryloxypropyltrimethoxysilane (γ‐MPS)‐modified SiO2 (γ‐MPS‐SiO2) and hyperbranched unsaturated polyester (U102) into PUA utilizing digital light processing 3D printing technology. Fourier transform...