Structure and Properties of Damping Rubber with Extended Fatigue Life

Jian-ping ZHANG; Xin-ping ZHANG; Lei CAI; Xin ZONG; Ai-hua HE

doi:10.14028/j.cnki.1003-3726.2019.02.006

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Structure and Properties of Damping Rubber with Extended Fatigue Life

The 30th Anniversary Issue II | 更新时间：2022-09-02

- Structure and Properties of Damping Rubber with Extended Fatigue Life
- Polymer Bulletin Vol. 32, Issue 2, Pages: 44-51(2019)
- 作者机构：
  
  山东省烯烃催化与聚合重点实验室　橡塑材料与工程教育部重点实验室　高分子科学与工程学院　青岛科技大学，青岛 266042
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2019.02.006
  CLC：
- Published：20 February 2019，
  
  Received：30 September 2018，
  
  Revised：02 November 2018，
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Jian-ping ZHANG, Xin-ping ZHANG, Lei CAI, Xin ZONG, Ai-hua HE. Structure and Properties of Damping Rubber with Extended Fatigue Life. [J]. Polymer Bulletin 32(2):44-51(2019)
DOI：

Jian-ping ZHANG, Xin-ping ZHANG, Lei CAI, Xin ZONG, Ai-hua HE. Structure and Properties of Damping Rubber with Extended Fatigue Life. [J]. Polymer Bulletin 32(2):44-51(2019) DOI： 10.14028/j.cnki.1003-3726.2019.02.006.

摘要

天然橡胶NR是减震制品的主要橡胶基体材料之一，但是NR硫化胶的耐疲劳性能较差，严重影响了制品的服役寿命。本工作首次将新型合成橡胶—高反式-1

4-丁二烯-异戊二烯共聚橡胶TBIR引入减振橡胶配方中，研究了不同共混比例的NR/TBIR橡胶的结构与性能。研究发现，TBIR与NR具有很好的相容性；同时，二者的硫化速率较为接近，硫化速率匹配性较高；未填充NR/TBIR硫化胶具有更低的压缩生热，更高的硬度及回弹性，以及突出的耐屈挠疲劳性能；填充NR/TBIR硫化胶表现出更好的动静刚度比及更突出的耐屈挠疲劳性能。可见，TBIR在减震制品中应用时可显著提高制品的服役寿命。

Abstract

As one of the main rubber matrix materials of damping products

the fatigue resistance of NR vulcanizate is unsatisfied

which seriously affects the service life of products. Herein

we introduce high

trans-

4-butadiene-isoprene copolymer rubber TBIR into traditional NR damping rubber formulation for the first time. The structure and properties of NR/TBIR rubber with different blending ratios were studied. The results showed that TBIR and NR had good compatibility; at the same time

the vulcanization rates of TBIR and NR were close to each other

resulting in well-matched vulcanization rate. In addition

NR/TBIR vulcanizates had lower compression heat

higher hardness and resilience

and more outstanding flexural fatigue resistance. Furthermore

NR/TBIR vulcanizates displayed satisfied damping properties

for instance

good dynamic and static stiffness ratio and low compression permanent deformation. Consequently

the application of TBIR in damping products can significantly improve the service life of products with satisfied comprehensive performances.

关键词

减震天然橡胶反式橡胶耐疲劳

Keywords

DampingNatural rubberTrans-1 4-(butadiene-co-isoprene) copolymer rubberFatigue resistance

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