Cargando…
Effect of Graphene/Spherical Graphite Ratio on the Properties of PLA/TPU Composites
Wave-absorbing materials are developing in the direction of “light weight, wide frequency band, thin layer and high strength”, and it is difficult to achieve the synergy between wave-absorbing performance and mechanical properties when graphene absorbent is compounded with a single resin matrix. In...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9268992/ https://www.ncbi.nlm.nih.gov/pubmed/35808583 http://dx.doi.org/10.3390/polym14132538 |
_version_ | 1784744123398356992 |
---|---|
author | Yang, Zenghui Wu, Haihua Zhang, Renjing Deng, Kaixin Li, Yan Liu, Zhi Zhong, Qiang Kang, Yi |
author_facet | Yang, Zenghui Wu, Haihua Zhang, Renjing Deng, Kaixin Li, Yan Liu, Zhi Zhong, Qiang Kang, Yi |
author_sort | Yang, Zenghui |
collection | PubMed |
description | Wave-absorbing materials are developing in the direction of “light weight, wide frequency band, thin layer and high strength”, and it is difficult to achieve the synergy between wave-absorbing performance and mechanical properties when graphene absorbent is compounded with a single resin matrix. In this paper, based on the preparation of a new composite absorbing wire with a graphene (GR)/spherical graphite (SG) double absorbent and polylactic acid (PLA)/thermoplastic polyurethane (TPU) double matrix, we proposed a new method to prepare samples for testing the electromagnetic parameters and tensile strength by fused deposition modeling (FDM). Furthermore, the effect of SG/GR ratio on the microwave absorbing properties and mechanical properties of PLA/TPU composites was specifically studied. It was found that when the ratio of SG/GR was small (0:5, 1:4), the dielectric loss (interfacial polarization loss, dipole polarization loss, conductivity loss) and attenuation ability of the composites were stronger, and the impedance matching was better. When the SG/GR ratio was large (5:0, 4:1), the composites had high strength and toughness. When the ratio of SG/GR was moderate (2:3, 3:2), it could retain the absorbing and mechanical properties of the absorbing materials. On the one hand, the SG and PLA/TPU matrix formed an “island structure”, which improves the dispersion of GR; on the other hand, the GR and PLA/TPU matrix formed a “core-shell structure”, which promotes polarization and multiple scattering. |
format | Online Article Text |
id | pubmed-9268992 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-92689922022-07-09 Effect of Graphene/Spherical Graphite Ratio on the Properties of PLA/TPU Composites Yang, Zenghui Wu, Haihua Zhang, Renjing Deng, Kaixin Li, Yan Liu, Zhi Zhong, Qiang Kang, Yi Polymers (Basel) Article Wave-absorbing materials are developing in the direction of “light weight, wide frequency band, thin layer and high strength”, and it is difficult to achieve the synergy between wave-absorbing performance and mechanical properties when graphene absorbent is compounded with a single resin matrix. In this paper, based on the preparation of a new composite absorbing wire with a graphene (GR)/spherical graphite (SG) double absorbent and polylactic acid (PLA)/thermoplastic polyurethane (TPU) double matrix, we proposed a new method to prepare samples for testing the electromagnetic parameters and tensile strength by fused deposition modeling (FDM). Furthermore, the effect of SG/GR ratio on the microwave absorbing properties and mechanical properties of PLA/TPU composites was specifically studied. It was found that when the ratio of SG/GR was small (0:5, 1:4), the dielectric loss (interfacial polarization loss, dipole polarization loss, conductivity loss) and attenuation ability of the composites were stronger, and the impedance matching was better. When the SG/GR ratio was large (5:0, 4:1), the composites had high strength and toughness. When the ratio of SG/GR was moderate (2:3, 3:2), it could retain the absorbing and mechanical properties of the absorbing materials. On the one hand, the SG and PLA/TPU matrix formed an “island structure”, which improves the dispersion of GR; on the other hand, the GR and PLA/TPU matrix formed a “core-shell structure”, which promotes polarization and multiple scattering. MDPI 2022-06-22 /pmc/articles/PMC9268992/ /pubmed/35808583 http://dx.doi.org/10.3390/polym14132538 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yang, Zenghui Wu, Haihua Zhang, Renjing Deng, Kaixin Li, Yan Liu, Zhi Zhong, Qiang Kang, Yi Effect of Graphene/Spherical Graphite Ratio on the Properties of PLA/TPU Composites |
title | Effect of Graphene/Spherical Graphite Ratio on the Properties of PLA/TPU Composites |
title_full | Effect of Graphene/Spherical Graphite Ratio on the Properties of PLA/TPU Composites |
title_fullStr | Effect of Graphene/Spherical Graphite Ratio on the Properties of PLA/TPU Composites |
title_full_unstemmed | Effect of Graphene/Spherical Graphite Ratio on the Properties of PLA/TPU Composites |
title_short | Effect of Graphene/Spherical Graphite Ratio on the Properties of PLA/TPU Composites |
title_sort | effect of graphene/spherical graphite ratio on the properties of pla/tpu composites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9268992/ https://www.ncbi.nlm.nih.gov/pubmed/35808583 http://dx.doi.org/10.3390/polym14132538 |
work_keys_str_mv | AT yangzenghui effectofgraphenesphericalgraphiteratioonthepropertiesofplatpucomposites AT wuhaihua effectofgraphenesphericalgraphiteratioonthepropertiesofplatpucomposites AT zhangrenjing effectofgraphenesphericalgraphiteratioonthepropertiesofplatpucomposites AT dengkaixin effectofgraphenesphericalgraphiteratioonthepropertiesofplatpucomposites AT liyan effectofgraphenesphericalgraphiteratioonthepropertiesofplatpucomposites AT liuzhi effectofgraphenesphericalgraphiteratioonthepropertiesofplatpucomposites AT zhongqiang effectofgraphenesphericalgraphiteratioonthepropertiesofplatpucomposites AT kangyi effectofgraphenesphericalgraphiteratioonthepropertiesofplatpucomposites |