The application of Hainan NR in the tread compound of off-road radial tire was investigated, and compared with Malaysia SMR20. The results showed that, the impurity concentration and nitrogen content of Hainan NR were lower than that of SMR20. When Hainan NR was used to replace SMR20 in the tread compound, the tensile strength, tear resistance and anti-cutting performance of the vulcanizate were slightly better, the brittle temperature was the same, and the heat build-up was lower. The finished tire with Hainan NR in the tread compound passed the durability and high speed performance tests, and had better high speed performances.
off-road radial tire
high speed performance