DOP与CPE的含量对BaSO_4填充聚氯乙烯基隔音复合材料性能的影响

Study on the Effect of DOP and CPE Content on BaSO_4 Filled PVC Composites Acoustic Insulation Performance

将邻苯二甲酸二辛酯(DOP)与氯化聚乙烯(CPE)按照不同的质量份数加入到BaSO4填充聚氯乙烯基(PVC)隔音复合材料中,探讨DOP与CPE的含量对BaSO4填充聚氯乙烯基隔音复合材料隔声性能的影响,利用BSWA VS302USB双通道声学分析仪,万能材料试验机,动态热机械分析仪测试了材料的隔声性能,力学性能,阻尼性能。结果显示:当PVC相对质量为100份,DOP为50份,CPE为20份时对低频具有较好的隔声性能,当DOP相对质量为80份,CPE为20份时对中频具有较好的隔声性能,对高频影响较小。

By adding dioctyl phthalate （DOP） and chlorinated polyethylene （CPE） with different parts of weight to the BaSO4 filled PVC （PVC） insulation composite materials, the paper studies on how the content of DOP and CPE impact acoustic insulation properties of BaSO4 filled PVC-based composites. U- sing BSWA VS302USB dual channel acoustic analyzer, universal testing machine and dynamic thermal ana- lyzer, the researchers test material＇s insulation properties, mechanical properties and damping. Experi- ments show that it has good sound insulation to the low frequency when the relative mass of 100 phr PVC, DOP is 50, CPE of 20. When the relative quality of 80 parts DOP, CPE of 20 phr of the IF it has a good sound insulation performance to middle frequency and less impact on the high frequency.