聚氯乙烯基隔声材料中填充炼钢炉渣粉

将炼钢炉渣粉填充到玻璃纤维织物/聚氯乙烯复合材料中制备了一种隔声材料 , 并利用双声道分析仪 ,分析研究了面密度与复合材料隔声性能的关系 , 比较了填充炼钢炉渣粉前后复合材料隔声量的变化 ; 利用动态热力学分析仪、SEM、 万能材料试验机等对材料的动态力学性能、 结构形态、 力学性能等进行了测试。结果表明 :复合材料的隔声性能在中低频段 (500～1000 Hz) 随着面密度的增加而增加 , 在高频段 ( > 1000 Hz) 变化不明显; 炼钢炉渣粉填充到复合材料中提高了材料在中低频段 (500～1000 Hz) 的隔声性能 ; 炼钢炉渣粉的填充对聚氯乙烯隔声材料的阻尼性能和力学性能也有一定的影响。

PVC sound insulation material filled with steel-smelting scoria

A sound insulation material was prepared using glass fabric/ PVC composite filled with steel-smeltingscoria powder . The relationship between the sound insulation performance and the surface density was analyzed bythe two-channel acoustic analyzer . Then the change of the sound reduction index was compared when the compositewas filled with the steel-smelting scoria or not . The dynamic mechanical property , the st ructural morphology andthe static mechanical property of composites were measured by DMA , SEM , universal material testing machine ,etc. The result s showed : in low-middle frequencies (500～1000 Hz) , the sound insulation performance of thecomposites was increased with increasing surface density , but variation of the sound insulation performance was notobvious in high frequencies ( > 1000 Hz) . The sound insulation performance of the composites was enhanced in low-middle frequencies (500～1000 Hz) , when filled with steel-smelting scoria powder . The steel-smelting scoria fillerhad a certain influence on the damping behavior and mechanical property of the PVC sound insulation materials.