A Prediction of the Damping Properties of Hindered Phenol A0-60/polyacrylate Rubber (AO-60/ACM) Composites through Molecular Dynamics Simulation

摘要

Molecule dynamics (MD) simulation, a molecular-level method, was applied to predict the damping properties of A0-60/polyacrylate rubber (AO-60/ACM) composites before experimental measures were performed. MD simulation results revealed that two types of hydrogen bond, namely, type A (AO-60) -OH???O=C- (ACM), type B (AO-60) -OH???O=C- (AO-60) were formed. Then, the AO-6O/ACM composites were fabricated and tested to verify the accuracy of the MD simulation through dynamic mechanical thermal analysis (DMTA). DMTA results showed that the introduction of AO-60 could remarkably improve the damping properties of the composites, including the increase of glass transition temperature (T_g) alongside with the loss factor (tan δ), also indicating the A0-60/ACM(98/100) had the best damping performance amongst the composites which verified by the experimental.