Effects of size and interparticle interaction of silica nanoparticles on dispersion and electrical conductivity of silver/epoxy nanocomposites

摘要: The agglomeration of nanoparticles (NPs) occurs due to attractive interaction between NPs and worsens the physical properties materials such as electrical conductivity. When is sufficiently strong, agglomerates may be arrested dynamically in non-equilibrium state with a large relaxation time. We show that when conductive silver form epoxy matrices, one can tune effective matrices by introducing auxiliary non-conductive silica prevent easily. More interestingly, size decreases, disperse better, thus increasing conductivity orders magnitude. also perform Monte Carlo simulations influence morphology not entropically but energetically.