The use of the surfactant PA-1 largely improved the storage stability of CR-1211 compound compared with that of conventional vulcanization system . This effect ofPA- 1 in CR-3221 was a little bit inferion .

• 使用表面活性剂PA-1的CR-1211混炼胶的贮存稳定性明显优于传统硫化体系,而在CR-3221中使用效果稍差。