| 用TMPTA改善过氧化物硫化EPDM性能的研究 |
| Improvement of Peroxide-crosslinked EPDM Properties with TMPTA |
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| DOI： |
| 中文关键词: EPDM 白炭黑 过氧化二异丙苯 三羟甲基丙烷三丙烯酸酯 |
| 英文关键词: EPDM silica DCP TMPTA |
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| 中文摘要: |
| 在EPDM/白炭黑胶料的过氧化物硫化体系中，加入三羟甲基丙烷三丙烯酸酯(TMPTA)能够迅速提高硫化胶的交联效率，增大网络密度，缩短硫化时间；当TMPTA用量为0.5份时，EPDM硫化胶的拉伸强度保持率和扯断伸长率保持率达到最大值；在2.0份过氧化二异丙苯(DCP)中加入0.5份TMPTA，胶料的硫化时间比单独使用3.0份DCP缩短40%，且硫化胶的定伸应力、拉伸强度和撕裂强度均明显提高。 |
| 英文摘要: |
| The improvement of peroxide-crosslinked EPDM properties with trimethylolpropane triacrylate(TMPTA) was studied.It was found that the crosslinking rate and crosslinking density increased and the curing cycle time reduced with the addition of TMPTA in the peroxide crosslinking system for EPDM/silica compound；the maximum tensile strength retension and elongation ultimate retension of EPDM vulcanizate after aging were obtained by adding 0.5 phr of TMPTA；the curing cycle time of EPDM compound with the addition of TMPTA(0.5 phr)in DCP(2.0 phr)reduced by 40% when compared to that with no TMPTA in DCP(3.0 phr)，and the modulus，tensile strength and tear strength of the former vulcanizate improved remarkably. |
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