Thermal and Microwave Properties of Thermostable Cyanate Ester Resin / Multi-Walled Carbon Nanotubes Nanocomposites

This work presents the investigation of thermostable thin composite films based on Cyanate Ester Resin (CER) network as the base material and the Multi-Walled Carbon Nanotubes (MWCNTs) as a filler. During the study of the thermal stability of the CER/MWCNTs nanocomposites synthesized, it was found that the presence of carbon nanotubes dispersed in the polymer matrix in an amount of 0.01 and 0.10 wt.% slightly increased the resistance of these nanocomposites to thermal oxidative degradation (in air) compared to the pure CER network. This is due to a certain contribution of MWCNTs, which have very high thermal stability. The radio-absorbing properties of the resulting films of the CER/MWCNTs nanocomposites in the X-band were investigated. It has been shown that when adding nanotubes, the attenuation of the electromagnetic signal increases and there is a slight dispersion of the increase in the attenuation of the signal in the direction of increasing the frequency of the electromagnetic signal.