新型促进剂STU对天然橡胶性能的影响

研究新型促进剂STU对天然橡胶（NR）硫化特性和物理性能的影响。结果表明：在较低的硫化温度下，添加促进剂STU可以缩短NR胶料的t₉₀；当促进剂STU/促进剂CZ摩尔比为1∶1时，可达到最佳的硫化促进效果；添加促进剂STU可以提高NR硫化胶的拉伸性能。;The effect of new type accelerator STU on the curing behavior and physical properties of NR compound was investigated.The results showed that，at low curing temperature，the t₉₀ of NR compound was shortened by adding accelerator STU.When the molar ratio of accelerator STU/accelerator CZ was 1∶1，the vulcanization accelerating effect was the best.The tensile properties of NR vulcanizate were improved by adding accelerator STU