Visco-elastic study on filled polymer composites

摘要

Dynamic mechanical behavior of materials, which is the response under cyclic stress(cyclic strain/force) in vibration condition, is different from its static behavior. The latter is the behavior of material in a monotonic increasing stress(strain/force). Dynamic mechanics analysis (DMA) is a method to measure the dynamic stiffness and damping in a lower stress level(linear elastic and lower than its yield strength). In the paper, dynamic mechanical experiments of filled polymer materials, polysulfone(PSU) and polyurethane(PUR), were performed on EPLEXOR 500N which manufacturing by GABO of Germany, the relationship of storage modulus E', loss modulus E" and loss tangent to pre-static load and frequency were systemically analyzed.