白炭黑补强天然橡胶/高反式-1，4-丁二烯-异戊二烯共聚橡胶并用胶性能的研究

以天然橡胶（NR）/高反式-1，4-丁二烯-异戊二烯共聚橡胶（TBIR）并用胶为对比，研究白炭黑补强NR/TBIR并用胶的性能。结果表明：NR/TBIR混炼胶和白炭黑补强NR/TBIR混炼胶的强度分别较NR混炼胶和白炭黑补强NR混炼胶提高；随着TBIR用量增大，NR/TBIR硫化胶和白炭黑补强NR/TBIR硫化胶的压缩永久变形和DIN磨耗量分别较NR硫化胶和白炭黑补强NR硫化胶减小，耐屈挠疲劳性能和耐伸张疲劳性能大幅提高，静摩擦因数和动摩擦因数增大；白炭黑补强NR/TBIR硫化胶较白炭黑补强NR硫化胶的白炭黑聚集体平均粒径减小，白炭黑在橡胶基体中的分散性改善。;The properties of silica reinforced natural rubber（NR）/high trans-1，4-butadiene isoprene rubber（TBIR） blend were investigated. The results showed that，the strength of NR compound was improved by blending with TBIR. With the increase of TBIR amount，the compression set and DIN wear of the NR/TBIR vulcanizate and silica reinforced NR/TBIR vulcanizate were reduced，the flexural fatigue resistance and tensile fatigue resistance were greatly improved，and the static friction coefficient and dynamic friction coefficient increased. The average particle size of silica aggregates in the silica reinforced NR/TBIR vulcanizate was smaller than that in the silica reinforced NR vulcanizate，and the dispersion of silica in rubber matrix was improved