| 环保型三元乙丙橡胶硫化体系的研究 |
| Study on Environment-Friendly Curing Systems of EPDM |
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| DOI： |
| 中文关键词: 三元乙丙橡胶 环保型硫化体系 喷霜 耐热老化性能 |
| 英文关键词: EPDM environment-friendly curing system blooming heat aging resistance |
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| 中文摘要: |
| 试验研究采用不同硫化体系的三元乙丙橡胶（EPDM）胶料的硫化特性、喷霜现象、亚硝胺含量、物理性能和耐热老化性能。结果表明：采用新型环保硫化体系的EPDM硫化胶不喷霜，也不产生亚硝胺；当采用纳米活性氧化锌/促进剂ZDBP/促进剂M/预分散硫黄S-80并用比为5/8/0.5/1.5的硫化体系时，EPDM胶料的焦烧时间适中，硫化速度最快，硫化胶的拉伸强度和拉断伸长率最大，耐热老化性能较好。 |
| 英文摘要: |
| The curing behavior，blooming，nitrite content，physical properties and heat aging property of EPDM compound with different curing systems were investigated experimentally.The results showed that，EPDM vulcanizates with new environment-friendly curing system showed no blooming and didn’t produce nitrite compounds.By using the curing system of active nano zinc oxide/accelerator ZDBP/accelerator M/pre-dispersed sulfur S-80 blend（the blending ratio was 5/8/0.5/1.5），the scorch time of EPDM compound was appropriate，and the curing rate was the fastest，the tensile strength and elongation at break of the vulcanizates were the highest，and the heat aging property was better. |
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