シリコーンゴムの粘弾性特性に及ぼす充填ナノ粒子の影響

抄録

The viscoelastic properties of the silicone rubber composites filled with nano silica particles were considered in terms of distinctive interphase layers on the nano a diameter of 300 nm or the micro-silica particles with a diameter of particles. The nano-1.5 μm were filled into the silica particles withsilicone rubber with several volume fractions of the particles to manufacture the rubber composites. Temperature variations of the viscoelastic properties of the composites were measured with a dynamic viscoelastometer. The viscoelastic properties in the particle size although the properties in the glassy state were independent of the size. The interphaserubbery state were clarified to be dependent on the layers enfolding the nano particles were observed on fracture surface and the micro particles were exposed on the fracture surface. The thickness of the interphase layer was determined as approximate 20 nm from the back operation of Guth and Gold's mixture law of dynamic storage modulus with the measured results.