Cargando…
Study on the Effect of Freeze–Thaw Action on the Electrical Conductivity and Sensing Properties of Graphene-Based Cement Composites
Graphene can effectively improve the mechanical and electrical properties of cement-based materials due to its excellent tensile strength, thermal conductivity and electrical conductivity. In this paper, the effects of freeze–thaw on the conductivity and sensing properties of graphene-based cement m...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865885/ https://www.ncbi.nlm.nih.gov/pubmed/36676593 http://dx.doi.org/10.3390/ma16020855 |
_version_ | 1784875950681358336 |
---|---|
author | Chen, Huihui Xu, Ning Jiang, Peng Jiang, Linhua |
author_facet | Chen, Huihui Xu, Ning Jiang, Peng Jiang, Linhua |
author_sort | Chen, Huihui |
collection | PubMed |
description | Graphene can effectively improve the mechanical and electrical properties of cement-based materials due to its excellent tensile strength, thermal conductivity and electrical conductivity. In this paper, the effects of freeze–thaw on the conductivity and sensing properties of graphene-based cement materials were investigated. After the preparation of graphene-based cement materials, they were subjected to different times of freeze–thaw action. The experiments were designed to analyze the influence of freeze–thaw on the electrical conductivity, humidity sensitivity, thermosensitivity and pressure sensitivity of graphene-based cement composites. The results show that the influence of freeze–thaw on the electrical conductivity of graphene is mainly manifested in the influence on the resistivity and the extension of the polarization time, and the influence on the percolation transition zone is small. After freeze–thaw, the polarization time of the specimen decreases with the increase of the relative water content. The temperature has a great influence on the polarization effect of graphene-based cement composites and the composites with graphene content of the zone B still show satisfactory pressure-sensitive property after freeze–thaw. |
format | Online Article Text |
id | pubmed-9865885 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98658852023-01-22 Study on the Effect of Freeze–Thaw Action on the Electrical Conductivity and Sensing Properties of Graphene-Based Cement Composites Chen, Huihui Xu, Ning Jiang, Peng Jiang, Linhua Materials (Basel) Article Graphene can effectively improve the mechanical and electrical properties of cement-based materials due to its excellent tensile strength, thermal conductivity and electrical conductivity. In this paper, the effects of freeze–thaw on the conductivity and sensing properties of graphene-based cement materials were investigated. After the preparation of graphene-based cement materials, they were subjected to different times of freeze–thaw action. The experiments were designed to analyze the influence of freeze–thaw on the electrical conductivity, humidity sensitivity, thermosensitivity and pressure sensitivity of graphene-based cement composites. The results show that the influence of freeze–thaw on the electrical conductivity of graphene is mainly manifested in the influence on the resistivity and the extension of the polarization time, and the influence on the percolation transition zone is small. After freeze–thaw, the polarization time of the specimen decreases with the increase of the relative water content. The temperature has a great influence on the polarization effect of graphene-based cement composites and the composites with graphene content of the zone B still show satisfactory pressure-sensitive property after freeze–thaw. MDPI 2023-01-16 /pmc/articles/PMC9865885/ /pubmed/36676593 http://dx.doi.org/10.3390/ma16020855 Text en © 2023 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 Chen, Huihui Xu, Ning Jiang, Peng Jiang, Linhua Study on the Effect of Freeze–Thaw Action on the Electrical Conductivity and Sensing Properties of Graphene-Based Cement Composites |
title | Study on the Effect of Freeze–Thaw Action on the Electrical Conductivity and Sensing Properties of Graphene-Based Cement Composites |
title_full | Study on the Effect of Freeze–Thaw Action on the Electrical Conductivity and Sensing Properties of Graphene-Based Cement Composites |
title_fullStr | Study on the Effect of Freeze–Thaw Action on the Electrical Conductivity and Sensing Properties of Graphene-Based Cement Composites |
title_full_unstemmed | Study on the Effect of Freeze–Thaw Action on the Electrical Conductivity and Sensing Properties of Graphene-Based Cement Composites |
title_short | Study on the Effect of Freeze–Thaw Action on the Electrical Conductivity and Sensing Properties of Graphene-Based Cement Composites |
title_sort | study on the effect of freeze–thaw action on the electrical conductivity and sensing properties of graphene-based cement composites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865885/ https://www.ncbi.nlm.nih.gov/pubmed/36676593 http://dx.doi.org/10.3390/ma16020855 |
work_keys_str_mv | AT chenhuihui studyontheeffectoffreezethawactionontheelectricalconductivityandsensingpropertiesofgraphenebasedcementcomposites AT xuning studyontheeffectoffreezethawactionontheelectricalconductivityandsensingpropertiesofgraphenebasedcementcomposites AT jiangpeng studyontheeffectoffreezethawactionontheelectricalconductivityandsensingpropertiesofgraphenebasedcementcomposites AT jianglinhua studyontheeffectoffreezethawactionontheelectricalconductivityandsensingpropertiesofgraphenebasedcementcomposites |