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-

1

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.