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研究了防焦剂N-三氯甲基硫代-N-苯基-苯磺酰胺(简称:防焦剂E)用量对三元乙丙橡胶(EPDM)硫化胶的硫化特性、焦烧性能、填料网络及力学性能的影响。结果表明,随着防焦剂E用量的增大,EPDM硫化胶交联密度和定伸应力均增大,拉断伸长率和压缩永久变形均减小;焦烧时间延长,填料网络化程度增大,拉伸强度和撕裂强度略有下降,无喷霜现象发生。当防焦剂E用量为0.5份时,EPDM硫化胶综合性能较好。
The effects of the amount of anti-coke agent N-trichloromethylthio-N-phenyl-benzenesulfonamide (anti-coke agent E) on the vulcanization, scorch, Filler network and mechanical properties. The results show that with the increase of the amount of anti-scorch agent E, the crosslink density and the ultimate tensile stress of EPDM vulcanizate increase, the elongation at break and the compression set decrease; the scorch time prolongs, the degree of filler network Increased, tensile strength and tear strength decreased slightly, no blooming phenomenon. When the amount of anti-scorch agent E 0.5 parts, EPDM vulcanizate better overall performance.