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Synergistic hybrid reinforcement effects of carbon black, silica, and multiwalled carbon nanotubes in self-healing natural rubber composites
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DOI:10.1177/09673911261448786.png)
Abstract
En 中文
This study investigated the influence of hybrid fillers such as carbon black (CB), silica, and multiwalled carbon nanotubes (MWCNTs) on mechanical properties and self-healing capability of the natural rubber (NR) composites based on metal thiolate ionic network. The Taguchi method was employed to optimize the hybrid filler composition using a reduced number of experiments, enabling efficient parameter evaluation, improved reliability of statistical analysis, and reduction in experimental cost and time. It was also used to optimize filler loadings and analyse their effects on key mechanical parameters including tensile strength, elongation at break, tear strength, hardness, compression set and crosslink density. Results suggest that MWCNTs contribute to enhanced mechanical performance through their high aspect ratio and interaction with the rubber matrix, followed by silica and carbon black. ANOVA analysis identified a filler combination of 15 phr CB, 20 phr silica, and 8 phr MWCNTs that represents a trade-off, where improved mechanical performance is achieved at the expense of reduced healing efficiency compared to unfilled NR.
Keywords:
self-healing natural rubber
carbon black
silica
multiwalled carbon nanotubes
hybrid fillers
Journal
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IF:
3
Papers:
17
Citations:
0
