Preparation and Damping Properties of Phenyl Silicone Rubber Foam
HU Yang1, ZHAO Qi2, LU Ai1,2, WANG Zhiyong1, SHEN Simin1
1 School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang 621010 2 Institute of Chemical Materials,China Academy of Engineering Physics,Mianyang 621900
Abstract: The phenyl silicone rubber foam was prepared by chemical foaming method. The kinetics of phenyl silicone rubber in the vulcanization foaming process was investigated. The damping properties of the phenyl silicone rubber system with foam structure were studied. The phenyl silicone rubber foam with different cell and density can be prepared by adjusting the vulcanization processing temperature and the amount of foaming agent. The damping property of the foam is obviously better than that of the solid rubber. The effective damping temperature range of the phenyl silicone rubber foam with cell diameter of about 100 μm and density of 0.74 g/cm3 is 47 ℃ higher than that of the solid rubber, and the damping peak is increased by 14%.
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