| 综合促进剂EG-3和VP-148在EPDM中的应用 |
| Application of accelerator systems EG-3 and VP-148 in EPDM compounds |
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| DOI： |
| 中文关键词: EPDM 促进剂 交联密度 压缩永久变形 喷霜 |
| 英文关键词: EPDM accelerator cross-linking density compression set blooming |
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| 中文摘要: |
| 试验研究综合促进剂EG-3和VP-148用量对EPDM胶料性能和喷霜程度的影响，并与常用促进剂M/TMTD，DM/TMTD/BZ和M/TRA/BZ并用体系进行对比。结果表明，EG-3和VP-148用量增大，EPDM胶料的t10和t90逐渐缩短，硫化胶的表观交联密度Vr、硬度和100%定伸应力提高，压缩永久变形减小，在室温停放30 d后未出现喷霜现象。EG-3和VP-148用量在2份以上时，EPDM硫化胶的Vr和压缩永久变形与常用促进剂并用体系硫化胶相当。 |
| 英文摘要: |
| The effects of the addition levels of accelerator systems EG-3 or VP-148 on the properties and blooming of EPDM compound were experimentally investigated and compared to the common accelerator blend systems，such as M/TMTD，DM/TMTD/BZ and M/TRA/BZ.The results showed that t10 and t90 of EPDM compounds reduced gradually with the increase of EG-3 or VP-148 addition levels，the appearance cross-linking density，hardness and modulus at 100% of their vulcanizates increased，the compression set decreased，and the blooming didn’t occur when the vulcanizates stored at room temperature for 30 d.The Vr and compression set of vulcanizates with more than 2 phr EG-3 or VP-148 were similar to those with common accelerator systems. |
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