Abstract:A series of silicone rubber foam (SF)/hollow glass beads (HGB) composites were prepared by room temperature vulcanization. The effects of HGB content on the crosslinking density, cell structure, mechanical properties, dynamic thermomechanical properties of SF/HGB composites were studied. The results indicated that SF/HGB composite which prepared with 6.0 wt% HGB content had the optimal comprehensive performance. The cushioning properties of SF/HGB composites were investigated by the static compression test. The cushioning coefficient of SF/HGB composite was very close to polyethylene foam (EPE). Moreover, the fatigue properties of SF/HGB composites were investigated by the dynamic compressive fatigue test. SF/HGB composite exhibited long fatigue life (6.0 million times) and high height retention rate (98.4 %), which was far greater than those of EPE (0.29 million times, 54.5 %), and its cushioning coefficient was almost no changed before and after fatigue test, which was obviously superior to traditional cushioning materials EPE and could be used as a cushioning material in the packaging field.