Application Research of Single-Wall Carbon Nanotubes in Tetrafluoroethylene-Propylene Rubber
摘要
This study systematically investigates the effects of single-wall carbon nanotubes (SWCNTs) on the mechanical and thermal properties of tetrafluoroethylene-propylene rubber. The results demonstrate that the incorporation of SWCNTs leads to an initial increase followed by a decrease in the MH-ML crosslink density of the tetrafluoroethylene-propylene rubber. Additionally, the scorch time and optimal vulcanization time are reduced. The tensile strength and tear strength of the vulcanized rubber exhibit an initial enhancement before sharply declining, while the modulus of the vulcanized rubber consistently increases. Furthermore, the retention rates of various properties under high-temperature conditions are significantly improved. The findings suggest that the optimal dosage of SWCNTs is 5 phr (parts per hundred rubber), which enables the tetrafluoroethylene-propylene rubber to achieve superior performance across all evaluated parameters.