The vulcanization time of the natural rubber–based magnetorheological elastomers and natural rubber was tested by the rotor-less vulcanizer. Result shows that the magnetorheological properties were best after adding 190 copies of carbonyl iron powder. From the test of rotor-less vulcanizer and equilibrium swelling method, it could be found that, after adding 190 copies of carbonyl iron powder, the crosslink density was increased by 11% and the vulcanization time was shortened by 20%. The catalytic activity of accelerator mainly originated from its ability of forming active vulcanizing agent with sulfur atom, and the possible mechanisms had been given. The carbonyl iron powder in magnetorheological elastomers improved the magnetorheological properties and the efficiency of vulcanization.

中文翻译：

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磁流变弹性体的动态力学性能：羰基铁粉的催化作用

天然橡胶基磁流变弹性体和天然橡胶的硫化时间通过无转子硫化机进行测试。结果表明，加入190份羰基铁粉后磁流变性能最好。从无转子硫化机和平衡溶胀法试验可以发现，加入190份羰基铁粉后，交联密度提高了11%，硫化时间缩短了20%。促进剂的催化活性主要来源于它与硫原子形成活性硫化剂的能力，并给出了可能的机理。磁流变弹性体中的羰基铁粉改善了磁流变性能和硫化效率。