The results showed that PDM was an effective scorch retarder for MgO/PER/TRA vulcanizing systems, and the vulcanizates with excellent compression permanent set and heat resistance could be obtained by PDM/antioxidant AW vulcanizing systems.

• 结果表明,在 MgO/PER/TRA硫化体系中,PDM是有效的防焦剂,采用PDM/防老剂 AW硫化体系可以制得压缩永久变形和耐热性能优良的硫化胶。