Popcorn Effect–inspired Self‐propagating Formation of High‐conductivity Cement Composite for Multifunctional Applications
Abstract The surge in modern civil technologies demands a transformation in cement composites to surpass traditional roles and integrate smart functionalities. In this regard, enhancing the electrical conductivity of cement composites is a critical challenge. This study introduces a novel strategy f...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202411290 |
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| author | Haiping Wu Jiaqi Huang Zhengyao Qu Xueling Zheng Sirui Tan Wei Du Guanming Cai Zhong Zhao Jing Wu Daiqi Li |
| author_facet | Haiping Wu Jiaqi Huang Zhengyao Qu Xueling Zheng Sirui Tan Wei Du Guanming Cai Zhong Zhao Jing Wu Daiqi Li |
| author_sort | Haiping Wu |
| collection | DOAJ |
| description | Abstract The surge in modern civil technologies demands a transformation in cement composites to surpass traditional roles and integrate smart functionalities. In this regard, enhancing the electrical conductivity of cement composites is a critical challenge. This study introduces a novel strategy for the self‐propagating formation of expandable graphite‐based high‐conductivity cement composites through a simple thermal treatment with 3 wt.% expandable graphite and 1 wt.%carbon fiber as conductive fillers. Inspired by the popcorn effect, this method leverages the rapid expansion of graphite at high temperatures, promoting contact between conductive fillers and forming new conductive networks. The obtained composites demonstrate a remarkable reduction of 60% in electrical resistance after heat treatment compared to the electrical resistance of standard cement composites, and the enhancing mechanisms is explored. The conductive properties endow the material with excellent electrothermal (>100 °C at 10 V), electrothermochromic (response time of 2 s), and electromagnetic interference shielding (42 dB at 12.4 GHz) performance. This innovative approach provides vast opportunities for developing smart infrastructure with enhanced electrical properties, regarded as a promising candidate for promoting next‐generation buildings and infrastructures. |
| format | Article |
| id | doaj-art-8e5912b4f8354bebbbc2df3ea7273e5f |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-8e5912b4f8354bebbbc2df3ea7273e5f2025-01-29T09:50:19ZengWileyAdvanced Science2198-38442025-01-01124n/an/a10.1002/advs.202411290Popcorn Effect–inspired Self‐propagating Formation of High‐conductivity Cement Composite for Multifunctional ApplicationsHaiping Wu0Jiaqi Huang1Zhengyao Qu2Xueling Zheng3Sirui Tan4Wei Du5Guanming Cai6Zhong Zhao7Jing Wu8Daiqi Li9State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 P. R. ChinaState Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 P. R. ChinaState Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Wuhan 430200 P. R. ChinaState Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 P. R. ChinaState Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 P. R. ChinaState Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 P. R. ChinaState Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 P. R. ChinaState Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 P. R. ChinaState Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 P. R. ChinaState Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 P. R. ChinaAbstract The surge in modern civil technologies demands a transformation in cement composites to surpass traditional roles and integrate smart functionalities. In this regard, enhancing the electrical conductivity of cement composites is a critical challenge. This study introduces a novel strategy for the self‐propagating formation of expandable graphite‐based high‐conductivity cement composites through a simple thermal treatment with 3 wt.% expandable graphite and 1 wt.%carbon fiber as conductive fillers. Inspired by the popcorn effect, this method leverages the rapid expansion of graphite at high temperatures, promoting contact between conductive fillers and forming new conductive networks. The obtained composites demonstrate a remarkable reduction of 60% in electrical resistance after heat treatment compared to the electrical resistance of standard cement composites, and the enhancing mechanisms is explored. The conductive properties endow the material with excellent electrothermal (>100 °C at 10 V), electrothermochromic (response time of 2 s), and electromagnetic interference shielding (42 dB at 12.4 GHz) performance. This innovative approach provides vast opportunities for developing smart infrastructure with enhanced electrical properties, regarded as a promising candidate for promoting next‐generation buildings and infrastructures.https://doi.org/10.1002/advs.202411290bioinspirationconductive networksexpandable graphiteportland cementthermal expansion |
| spellingShingle | Haiping Wu Jiaqi Huang Zhengyao Qu Xueling Zheng Sirui Tan Wei Du Guanming Cai Zhong Zhao Jing Wu Daiqi Li Popcorn Effect–inspired Self‐propagating Formation of High‐conductivity Cement Composite for Multifunctional Applications Advanced Science bioinspiration conductive networks expandable graphite portland cement thermal expansion |
| title | Popcorn Effect–inspired Self‐propagating Formation of High‐conductivity Cement Composite for Multifunctional Applications |
| title_full | Popcorn Effect–inspired Self‐propagating Formation of High‐conductivity Cement Composite for Multifunctional Applications |
| title_fullStr | Popcorn Effect–inspired Self‐propagating Formation of High‐conductivity Cement Composite for Multifunctional Applications |
| title_full_unstemmed | Popcorn Effect–inspired Self‐propagating Formation of High‐conductivity Cement Composite for Multifunctional Applications |
| title_short | Popcorn Effect–inspired Self‐propagating Formation of High‐conductivity Cement Composite for Multifunctional Applications |
| title_sort | popcorn effect inspired self propagating formation of high conductivity cement composite for multifunctional applications |
| topic | bioinspiration conductive networks expandable graphite portland cement thermal expansion |
| url | https://doi.org/10.1002/advs.202411290 |
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