Modification of Oligomeric Cyanate Ester Polymer Properties with Multi-Walled Carbon Nanotube-Containing Particles

摘要

The properties of an oligomeric cyanate ester polymer were modified by the addition of 0.01-3 wt.- multi-walled carbon nanotube (MWNT) containing particles. The dynamic mechanical behavior and thermal properties of the cyanate ester/MWNT nanocomposites were evaluated. The storage modulus, G', of the nanocomposite with 1 wt.- MWNT particles was nearly 60 and 600 higher than the neat polymer at 100 and 200 degrees C, respectively. The glass transition temperature of the nanocomposite was also raised by 30 degrees C and its thermal stability in air and nitrogen was increased by 58 and 25 degrees C, respectively. The property improvements are attributed to reinforcement of the cyanate ester as a result of good nanotube dispersion and effective polymer-MWNT interaction.