Journal
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
Volume 17, Issue 5, Pages 2335-2345Publisher
WILEY
DOI: 10.1111/ijac.13543
Keywords
carbon nanotube; cellular; geopolymer foam; mechanical properties
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Funding
- Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science [2019JH3/30100016]
- National Natural Science Foundation of China [51702184]
- Natural Science Foundation of Liaoning Province [2019-BS086]
- Fundamental Research Funds for the Central Universities [N2025031]
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A lightweight hybrid geopolymer foams reinforced with carbon nanotubes (CNTs) was exploited by adding the CNTs into geopolymeric matrix through hydrogen peroxide method. The synergistic effects of nanotubes and foaming agent on the phase evolution, microstructure, and mechanical properties were investigated. After introduction of nanotubes, the geopolymer foams reinforced with CNTs (CNTs/KGP) still showed amorphous structure. Porosity of the foams increased with the H2O2 content and decreased with the increase in CNTs content. The addition of CNTs (1-9 wt%) in foams refined the distribution of pore size from 523 to 352 mu m. Compression strength of the CNTs/KGP samples elevated with the increasing content of CNTs, which was contributed to the crack propagation and bridging of CNTs in foams. The CNTs/KGP foams with considerable porosity show potential applications in adsorption, filtration, membrane supports, other industries, etc
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