主要研究非平面界面的新型多层高分子复合材料在不同温度和压力下的吸声性能.制备了非平面界面的新型多层高分子复合材料和平面界面的传统多层高分子复合材料,并在声管中测试其吸声系数.结果表明,在所研究的频率范围内,新型多层高分子复合材料吸声系数大于传统的多层高分子复合材料吸声系数;这种新型多层高分子复合材料吸声系数峰值随温度的升高向低频方向移动,而随压力变化不大.因此,合理设计多层高分子复合材料的界面形状可以提高复合材料的吸声性能.
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