工程隔振用聚氨酯微孔弹性体的研制  

Research of Polyurethane Microcellular Elastomer for Engineering Vibration Isolation

作　　者：郭浩 孙方遒 丁德云 姜志国[2] 邱北斌 姚明[2] GUO Hao;SUN Fangqiu;DING Deyun;JIANG Zhiguo;QIU Zhaobin;YAO Ming(Beijing Jiuzhouyigui Environmental Technology Co.Ltd,State Environmental Protection Engineering Center for Urban Rail Transit Vibration and Noise Controle(under construction),Beijing 100071,China;College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京九州一轨环境科技股份有限公司国家环境保护城市轨道交通振动与噪声控制工程技术中心(筹),北京100071 [2]北京化工大学材料科学与工程学院,北京100029

出　　处：《聚氨酯工业》2023年第6期26-29,共4页Polyurethane Industry

基　　金：甘肃省科技计划项目(22CX8JA142);北京市基础设施投资有限公司科研项目(2022-10-06-01);天津市交通运输科技发展计划项目(2023-8)。

摘　　要：以改性MDI(MM103C)、HDI三聚体(HI100)、组合聚醚多元醇YZ-2101、聚合物多元醇POP-36/28、聚醚多元醇330N、3,3′-二氯-4,4′-二氨基二苯基甲烷(MOCA)、1,4-丁二醇(BDO)和发泡剂等为原料,采用半预聚体法制备了工程隔振用聚氨酯微孔弹性体材料,研究了材料密度和硬段含量对微孔弹性体性能的影响。结果表明,随着密度的增加,微孔弹性体拉伸强度、断裂伸长率逐渐增大;随着硬段含量的增加,微孔弹性体的拉伸强度和静刚度逐渐升高,断裂伸长率逐渐减小,压缩永久变形率和动静刚度比先降低后升高,硬段质量分数40%时达到最低值,分别为6.5%和1.22。Polyurethane microporous elastomer material for engineering vibration isolation was prepared by semi-prepolymerization method with modified methylene diphenyl diisocyanate MM103C,hexamethylene diisocyanate trimer HI100,combination polyether polyol YZ-2101,polymer polyether POP-36/28,polyether polyol 330N,3,3′-dichloro-4,4′-diaminodiphenylmethane(MOCA),1,4-butanediol,foaming agent(BDO)as raw materials.The effects of density and hard segment content on the properties of microporous elastomer were studied.The results showed that the tensile strength and elongation at break of microporous elastomer increased with the density increase.With the increase of hard segment content,the tensile strength and static stiffness of microporous elastomers gradually increased,while the elongation at break gradually decreased.The compression permanent deformation rate and dynamic static stiffness ratio first decreased and then increased.When the hard segment content was 40%,the minimum values were achieved,which were compression permanent deformation rate 6.5%and dynamic static stiffness ratio 1.22,respectively.

关 键 词：聚氨酯 微孔弹性体 隔振 压缩永久变形 动静刚度比 

分 类 号：TQ333.95[化学工程—橡胶工业]