Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites
AbstractIn this study, a series of heat-induced shape memory composites was prepared by the hot-melt extrusion and three-dimensional (3D) printing of thermoplastic polyurethane (TPU) using wood flour (WF) with different contents of EPDM-g-MAH. The mechanical properties, microtopography, thermal property analysis, and heat-induced shape memory properties of the composites were examined. The results showed that, when the EPDM-g-MAH content was 4%, the tensile elongation and tensile strength of the composites reached the maximum value. The scanning electron microscopy and dynamic mechanical analysis results revealed a good interface bonding between TPU and WF when the EPDM-g-MAH content was 4%. The thermogravimetric analysis indicated that the thermal stability of TPU/WF composites was enhanced by the addition of 4% EPDM-g-MAH. Heat-induced shape memory test results showed that the shape memory performance of composites with 4% EPDM-g-MAH was better than that of unmodified-composites. The composites’ shape recovery performance at a temperature of 60 °C was higher than that of the composites at ambient temperature. It was also found that, when the filling angle of the specimen was 45°, the recovery angle of the composites was larger. View Full-Text
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Bi, H.; Xu, M.; Ye, G.; Guo, R.; Cai, L.; Ren, Z. Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites. Polymers 2018, 10, 1234.
Bi H, Xu M, Ye G, Guo R, Cai L, Ren Z. Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites. Polymers. 2018; 10(11):1234.Chicago/Turabian Style
Bi, Hongjie; Xu, Min; Ye, Gaoyuan; Guo, Rui; Cai, Liping; Ren, Zechun. 2018. "Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites." Polymers 10, no. 11: 1234.
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