聚氨酯泡沫吸声材料的制备及性能研究  

Research on Preperation of the Sound Absorption Material with the Polyurethane Foam

作　　者：王启强[1] 

机构地区：[1]绵阳职业技术学院,四川绵阳621000

出　　处：《新技术新工艺》2016年第11期54-56,共3页New Technology & New Process

基　　金：四川省教育厅资助项目(15ZB0410);绵阳职业技术学院自然科学科研项目(ZRYJ1504)

摘　　要：利用一步法制备聚氨酯泡沫吸声材料,探究了配方和发泡工艺对泡沫材料性能的影响,对材料的吸声系数、力学强度和微观结构进行了测试与表征。结果表明,当发泡剂为8g、匀泡剂为1.5g、反应温度为30℃时,聚氨酯泡沫的吸声系数为0.42;经130℃处理10h后,聚氨酯吸声材料具有较好的综合性能,其吸声系数和力学强度分别为0.47和0.68 MPa。SEM观测显示,吸声材料形成了分布均匀有利于吸声的开孔-闭孔共存体系。Identify the one-step molding preparation process parameters of rigid PU foam and its effect on foam property. Use standing wave tube absorption coefficient tester, and open closed pore rate locator, universal testing machine, electron scanner and other machines to test PU＇s acoustic absorptivity, intensity and microstructure. The results show that when the weight of foaming agent is 8 g, evenly defoamer is 1.5 g, the reaction temperature is 30 ℃, and the PU＇s acoustic absorptivity is 0.42, then the property of sound absorption material would be better after heating at 130 ℃ about 10 hours which acoustic absorptivity, intensity is 0.47and 0.68 MPa. SEM shows that it has a uniform distribution to open the pore and obdurate coexist microstructure.

关 键 词：聚氨酯 发泡剂 匀泡剂 吸声系数 

分 类 号：TU55[建筑科学—建筑技术科学]