【摘要】 本工作采用化学发泡法制备了苯基硅橡胶泡沫材料,探究了苯基硅橡胶硫化发泡过程的动力学,研究了苯基硅橡胶体系在引入泡沫结构后的阻尼性能。结果表明,通过调整硫化加工温度和发泡剂用量,可以制备不同密度、泡孔尺寸的苯基硅橡胶泡沫材料,泡沫材料的阻尼性能明显优于实心胶,其中,孔径约为100μm密度ρ为0.74 g/cm~3的苯基硅橡胶泡沫的有效阻尼温域比实心胶提高了47℃,阻尼峰值提高了14%。更多还原

【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/cm~3 is 47 ℃ higher than that of the solid rubber, and the damping peak is increased by 14%.更多还原