Journal
POLYMERS
Volume 14, Issue 22, Pages -Publisher
MDPI
DOI: 10.3390/polym14224989
Keywords
fluororubber; aminated carbon nanotubes; acidified carbon nanotubes; mechanical properties; interfacial interactions
Categories
Funding
- National Natural Science Foundation of China [51872209, 52072273, 51972239]
- Zhejiang Provincial Natural Science Foundation of China [LZ21E020001]
- Zhejiang Provincial Special Support Program for High-level Talents [2019R52042]
- Key programs for Science and Technology Innovation of Wenzhou [2018ZG005]
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Introducing aminated carbon nanotubes and acidified carbon nanotubes to modulate the interfacial interactions in fluororubber composites significantly improved their mechanical, electrical, thermal, and wear properties.
To improve the properties of fluororubber (FKM), aminated carbon nanotubes (CNTs-NH2) and acidified carbon nanotubes (CNTs-COOH) were introduced to modulate the interfacial interactions in FKM composites. The effects of chemical binding and F-H polar interactions between CNTs-NH2, CNTs-COOH, and FKM on the mechanical, electrical, thermal, and wear properties of the FKM composites were systematically investigated. Compared to the pristine FKM, the tensile strength, modulus at 100% strain, hardness, thermal conductivity, carbon residue rate, and electrical conductivity of CNTs-NH2/CNTs-COOH/FKM were increased by 112.2%, 587.5%, 44.2%, 37.0%, 293.5%, and nine orders of magnitude, respectively. In addition, the wear volume of CNTs-NH2/CNTs-COOH/FKM was reduced by 29.9%. This method provides a new and effective way to develop and design high-performance fluororubber composites.
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