Silanised Multi-Walled Carbon Nanotubes for Shoulder Peak Optimisation and Sensitivity Enhancement in Butyl Rubber-Based Conductive Elastomer Composites

The results indicate that silane modification of MWCNTs-OH significantly improves their dispersion stability in IIR and effectively regulates interfacial interactions within the composite material. The MHKIIR achieved complete elimination of the response shoulder within a 20% strain range and substantially improved response sensitivity across the entire sensing range; its sensitivity within the 20% sensing range was 513.41% higher than that of the unmodified system, while maintaining good signal stability and repeatability during 15,000 cycles of tensile-unloading testing.

These results indicate that MHKIIR holds great promise for application in the field of long-term, high-precision structural health monitoring of seismic isolation bearings.