Abstract
Two types of pristine single-wall carbon nanotubes (SWCNTs) were used: one with >70% carbon element (P70) and another with >90% carbon element (P90). After fitting of scanning electron microscopy (SEM) images, it was found that impurity in P70 have around 26%, P70 sonicated have around 17%, and P90 have around 9%. The rubber nanocomposites were prepared by mixing room-temperature-vulcanized (RTV) silicone rubber with pristine and sonicated SWCNTs. SEM shows that the filler particles were distributed uniformly throughout the rubber matrix. At 3 per hundred parts of rubber (phr), low resistance was obtained: ∼94 kilo ohms (kΩ) (P70 SWCNTs), ∼89 kΩ (sonicated P70 SWCNTs), and ∼35 kΩ (P90 SWCNTs). The results show that the new model and modified Guth-Gold Smallwood model fit well with the experimental data. These improvements could be useful for next-generation devices such as actuators and energy harvesting.
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