汽车用聚氨酯减振材料的结构与性能

张欢欢; 王杰; 黄刚; 占宏君; 石彤非; 许东华; 姚卫国

doi:10.11777/j.issn1000-3304.2016.16040

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汽车用聚氨酯减振材料的结构与性能

研究论文 | 更新时间：2021-03-19

- 汽车用聚氨酯减振材料的结构与性能
- Structure and Properties of the Polyurethane Damping Materials Used in Automobiles
- 高分子学报 2016年第10期页码：1447-1454
- 作者机构：
  
  1.中国科学院长春应用化学研究所高分子物理与化学国家重点实验室长春 130022
  2.中国科学院大学北京 100049
  3.广州中谱检测技术服务有限公司广州 510663
  4.吉林大学材料科学与工程学院教育部汽车材料重点实验室长春 130025
- 作者简介：
  
  许东华,E-mail:dhxu@ciac.ac.cn Dong-hua Xu, E-mail:dhxu@ciac.ac.cn
  姚卫国,E-mail:wgyao@jlu.edu.cn Wei-guo Yao, E-mail:wgyao@jlu.edu.cn
- 基金信息：
  
  国家自然科学基金(基金号21274152，51473168，21234007);吉林省科技厅科技发展计划项目(项目号20150301002GX)
- DOI：10.11777/j.issn1000-3304.2016.16040
  中图分类号：
- 纸质出版日期：2016-10，
  
  收稿日期：2016-2-3，
  
  修回日期：2016-2-3，
扫描看全文
张欢欢, 王杰, 黄刚, 占宏君, 石彤非, 许东华, 姚卫国. 汽车用聚氨酯减振材料的结构与性能[J]. 高分子学报, 2016,(10):1447-1454.

Zhang Huan-huan, Wang Jie, Huang Gang, Zhan Hong-jun, Shi Tong-fei, Xu Dong-hua, Yao Wei-guo. Structure and Properties of the Polyurethane Damping Materials Used in Automobiles[J]. Acta Polymerica Sinica, 2016,(10):1447-1454.
张欢欢, 王杰, 黄刚, 占宏君, 石彤非, 许东华, 姚卫国. 汽车用聚氨酯减振材料的结构与性能[J]. 高分子学报, 2016,(10):1447-1454. DOI： 10.11777/j.issn1000-3304.2016.16040.

Zhang Huan-huan, Wang Jie, Huang Gang, Zhan Hong-jun, Shi Tong-fei, Xu Dong-hua, Yao Wei-guo. Structure and Properties of the Polyurethane Damping Materials Used in Automobiles[J]. Acta Polymerica Sinica, 2016,(10):1447-1454. DOI： 10.11777/j.issn1000-3304.2016.16040.

摘要

利用扫描电镜（SEM）对减振材料的微孔结构进行了表征；用万能材料试验机（UMTM）、动态热机械分析仪（DMA）、旋转流变仪表征了减振材料在不同条件下的力学及减振性能.研究发现：不同聚氨酯减振材料进入非线性形变区域的压缩形变大小与微孔的面积占有率相关.我们认为聚氨酯泡沫减振材料在小压缩应变下应力的缓慢增加主要是由微孔的变形引起的，随着压缩应变进一步增加，微孔的变形接近极限，此时应力的快速增加主要由聚氨酯本体的力学性能决定.聚氨酯减振材料的损耗能随着压缩应变的增加而增加，减振性能好的材料具有较大的损耗能.聚氨酯减振材料的损耗角随着压缩频率的增加而略有增加，其影响减振材料在不同使用频率下的减振和产热性能.聚氨酯减振材料的损耗角随着温度的变化而发生变化，耐寒性和耐热性好的材料，损耗角随温度平缓变化的温度范围更宽.当减振材料受到一定的负载后，材料的损耗角降低.

Abstract

Scanning electron microscope (SEM) was used to study the microcellular structure of the damping material.Universal material testing machine (UMTM)

dynamic mechanical thermal analysis (DMA) and rotational rheometer were used to measure the mechanical properties and damping properties under different conditions.For the three different damping materials

it was observed that the value of the critical compression strain where the damping material changed to non-linear deformation regime was connected with the ratio of microcellular area versus the bulk area of cutting surface.It was inferred that the slow growth of stress for damping materials under small compression strain was contributed from the deformation of microcellular.As the compression strain was further increased

the deformation of microcellular reached its limitation

and accordingly

the rapid growth of the stress was mainly caused by the deformation of the bulk polyurethane.It was observed that the hysteresis energy of damping materials increased with the maximum compression strain was increased

and the damping material with better damping properties had bigger hysteresis energy.It was found that the loss angle of damping materials increased slightly with compression frequency

which affects the damping properties and the generated heart of the damping materials with different compression frequency.It was also observed that the loss angle of damping materials changed with temperature

and the loss angle would change slightly under wider range of temperature for the damping material with better low temperature resistance and high temperature resistance.It was also found that the damping properties of samples decreased when a bigger load was applied.

关键词

聚氨酯减振材料高分子汽车

Keywords

PolyurethaneDamping materialPolymerAutomobile

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