| 城市轨道交通用聚氨酯微孔弹性减振垫板的研制 |
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| 引用本文： | 于磊,姜凌,杨桂玲,于晓东,宋宗焘,赵天. 城市轨道交通用聚氨酯微孔弹性减振垫板的研制[J]. 聚氨酯工业, 2021, 36(1): 31-33 |
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| 作者姓名： | 于磊 姜凌 杨桂玲 于晓东 宋宗焘 赵天 |
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| 作者单位： | 中车青岛四方车辆研究所有限公司 山东青岛 266031;中车青岛四方车辆研究所有限公司 山东青岛 266031;中车青岛四方车辆研究所有限公司 山东青岛 266031;中车青岛四方车辆研究所有限公司 山东青岛 266031;中车青岛四方车辆研究所有限公司 山东青岛 266031;中车青岛四方车辆研究所有限公司 山东青岛 266031 |
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| 摘 要： | 以聚四氢呋喃二醇(PTMG)、聚醚三醇EP-330N、二苯基甲烷二异氰酸酯(MDI)、液化MDI、三羟甲基丙烷(TMP)、乙二醇(EG)、催化剂A33和水等为原料,采用预聚法合成了聚氨酯微孔弹性体材料.考察了A组分聚醚PTMG/EP-330N配比、扩链剂/交联剂配比及B组分游离NCO含量对材料性能的影响,并对比了用聚氨...
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| 关 键 词： | 聚氨酯 微孔弹性体 聚醚多元醇 交联剂 减振垫板 |
Preparation of Polyurethane Microcellular Elastomer Damping Pads for Urban Rail |
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| YU Lei,JIANG ling,YANG Guiling,YU Xiaodong,SONG Zongtao,ZHAO Tian. Preparation of Polyurethane Microcellular Elastomer Damping Pads for Urban Rail[J]. Polyurethane Industry, 2021, 36(1): 31-33 |
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| Authors: | YU Lei JIANG ling YANG Guiling YU Xiaodong SONG Zongtao ZHAO Tian |
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| Affiliation: | (CRRC Qingdao Sifang Rolling Stock Research Institute Co.Ltd,Qingdao 266042,Shandong,China) |
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| Abstract: | Polyurethane microcellular elastomers were prepared with polytetramethylene ether glycol(PTMG),polyether triol EP-330N,4,4′-diphenylmenthane diisocyanante(MDI),liquefied MDI,trimethylolpropane(TMP),ethylene glycol(EG),catalyst A33 and water by prepolymerization method.The effects of polyether PTMG/EP-330N ratio,chain extender/crosslinking agent ratio in A-component and NCO content of B-component on the material properties were investigated.The properties of the vibration damping pads prepared with polyurethane micro-cellular elastic materials and existing foamed rubber material were compared.The results showed that the mechanical strength,compressive properties and oil resistance of the material could be improved when the content of EP-330N,TMP or the content of NCO group increased properly.The polyurethane vibration damping pad had better anti-fatigue performance. |
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| Keywords: | polyurethane microcellar elastomer polyether polyol crosslinking agent damping pad |
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