Abstract
Spring-back and compression properties of two kinds of mixtures including rubber powder were examined by uni-axial compression. One was a mixture with fine powder (calcium carbonate) and another was a mixture with fibrous material (aramid fiber pulp) and fine powder (calcium carbonate).
Spring-back behaviors of rubber powder mixtures are characterized by the ratio of maximum spring-back and the pressure at which the spring-back of mixture began. Effects of volume fraction of rubber powder on deformation behavior of rubber particles are evaluated by using Cooper's equation, which expresses powder consolidation process in terms of two mechanisms, i.e., rearrangement of particles in powder bed and deformation of rubber particles.
