低聚物多元醇对聚氨酯阻尼材料性能影响研究  

Study on Effect of Polymeric Glycol on the Properties of Polyurethane Damping Materials

作　　者：孙晋良[1] 高鹏 Sun Jinliang;Gao Peng(Marine Chemical Research Institute Co.,Ltd.,Qingdao 266071,China)

机构地区：[1]海洋化工研究院有限公司,山东青岛266071

出　　处：《山东化工》2023年第21期30-31,36,共3页Shandong Chemical Industry

摘　　要：聚氨酯材料是一种良好的阻尼材料,通过合理的分子结构设计来提高其性能,研究软段对聚氨酯阻尼材料性能的影响。以MDI-100,BDO为硬段,不同种类相对分子质量为2000的低聚物多元醇为软段,采用预聚体法制成了聚氨酯阻尼材料,并对其力学性能和损耗因子进行测试。结果表明,扩链系数为1时,PCG型聚氨酯比其他类型聚氨酯表现出更高的力学强度,并且在28.7℃达到损耗因子最大值0.57。PCG多元醇是制备聚氨酯阻尼材料一种新的原料选择,其制备的阻尼涂料在舰船减振降噪领域具有广阔的应用空间。Polyurethane material can be an appropriate damping material.Reasonable molecular structure design will improve its performance.Using MDI-100 and BDO as hard segment and different oligomer polyols(M_(n)=2000)as soft segment,polyurethane damping materials were synthesized by prepolymerization method,and mechanical properties and loss factors were tested.The results showed that PCG base polyurethane showed higher mechanical property than other types of polyurethane and reached tanδ_(max)=0.57 at 28.7℃.PCG polyol is a new raw material choice for preparing polyurethane damping materials,which will be widely applied.

关 键 词：聚氨酯 低聚物二醇 阻尼材料 力学性能 阻尼性能 

分 类 号：TQ637.2[化学工程—精细化工]