橡塑型泡沫吸声材料的研究

Study on Acoustic Properties of Rubber-Plastic Foam Materials

摘要: 采用化学发泡方法制得了以乙丙橡胶、聚氯乙类和岩棉为主要原料的泡沫吸声材料，其平均吸声系数达０．５以上，且此材料的低频吸声性能比一般多孔型吸声材料的要好得多。通过正交实验得出了最佳配方，还对乙丙橡胶用量、增塑剂用量、发泡剂用量和岩棉用量对材料吸声性能的影响做了研究。

Abstract: A new type of sound absorbent material mainly made from PVC, EPR and rock-wool was produced by the thermal decomposition of chemical blowing agent. Its average sound absorbing coefficient is higher than 0.5. The material has better acoustical performance