Study of the Synergistic Effect of Hydrogen Bonding and Nano-Si3N4 in XNBR Matrix

Abstract

In this work, the Si3N4 nano-particles were dispersed in organic hybrid damping materials to enhance the mechanical properties, and the effect of surface silylation on Si3N4 was also studied. The hydrogen bond networks were formed via the interactions of AO-80 small organic molecules (phenolic hydroxyl groups). In the composites, the Young’s modulus and hydrogen bond interaction were verified by molecular dynamics simulation, which was in high consistent with the experimental results. For the surface-treated fillers, there were hydrogen bond networks in both XNBR/sin system and XNBR/AO-80 system, and the hydrogen bond network in the composites could contribute to better dispersion of Si3N4 and improvement of mechanical properties.