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Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites

In 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 ana...

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Autores principales: Bi, Hongjie, Xu, Min, Ye, Gaoyuan, Guo, Rui, Cai, Liping, Ren, Zechun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6401767/
https://www.ncbi.nlm.nih.gov/pubmed/30961159
http://dx.doi.org/10.3390/polym10111234
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author Bi, Hongjie
Xu, Min
Ye, Gaoyuan
Guo, Rui
Cai, Liping
Ren, Zechun
author_facet Bi, Hongjie
Xu, Min
Ye, Gaoyuan
Guo, Rui
Cai, Liping
Ren, Zechun
author_sort Bi, Hongjie
collection PubMed
description In 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.
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spelling pubmed-64017672019-04-02 Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites Bi, Hongjie Xu, Min Ye, Gaoyuan Guo, Rui Cai, Liping Ren, Zechun Polymers (Basel) Article In 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. MDPI 2018-11-07 /pmc/articles/PMC6401767/ /pubmed/30961159 http://dx.doi.org/10.3390/polym10111234 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bi, Hongjie
Xu, Min
Ye, Gaoyuan
Guo, Rui
Cai, Liping
Ren, Zechun
Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites
title Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites
title_full Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites
title_fullStr Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites
title_full_unstemmed Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites
title_short Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites
title_sort mechanical, thermal, and shape memory properties of three-dimensional printing biomass composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6401767/
https://www.ncbi.nlm.nih.gov/pubmed/30961159
http://dx.doi.org/10.3390/polym10111234
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