Investigate the Effect of the Magnetic Field on the Mechanical Properties of Silicone Rubber-Based Anisotropic Magnetorheological Elastomer during Curing Process
Investigate the Effect of the Magnetic Field on the Mechanical Properties of Silicone Rubber-Based Anisotropic Magnetorheological Elastomer during Curing Process
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DOI：
10.32604/jrm.2020.012939
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发表时间：
2020-01-01
影响因子：
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通讯作者：
Guo, Xunzhong
中科院分区：
文献类型：
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作者：
Li, Tao;Abd El-Aty, Ali;Guo, Xunzhong
本研究制备了一种新型硅橡胶基磁流变弹性体材料，并将其作为成形介质，通过胀形工艺制造薄壁复杂形状的镍基管材。因此，研究磁场强度、磁场加载时间和磁场加载角度对磁流变弹性体材料固化过程中力学性能的影响具有重要意义。结果表明，在固化过程中增加磁场强度可以有效地改善弹性体基体中链结构的取向。而在相应的磁场强度为321 mT时，其力学性能最好。此外，通过延长固化过程中磁场的加载时间，优化了分子链结构的取向，同时也提高了材料的力学性能，最佳加载时间为20-25 min;通过改变固化过程中磁场的加载角度，提高了材料的力学性能。当磁场加载角度为90 °时，弹性体表现出最佳的压缩力学性能和优异的压缩可逆性。另外，对于各向异性磁流变弹性体材料，磁压缩后的磁流变弹性体性能始终优于未磁压缩的磁流变弹性体。
In this investigation, a new silicone rubber-based MRE material was prepared to be used as a forming medium in manufacturing thin-walled complex-shaped Ni-based tubes through the bulging process. Thus, it is significant to investigate the effect of magnetic field intensity, magnetic field loading time, and angle on the mechanical properties of the prepared MRE material during the curing process. The obtained results showed that increasing the magnetic field intensity during the curing process can improve the orientation of the chain structure in the elastomer matrix effectively. However, its mechanical properties are the best under the corresponding magnetic field intensity of 321 mT. Besides, by extending the magnetic field loading time in the curing process, the orientation of the chain structure was optimized, at the same time, the mechanical properties were also improved, and the best loading time is about 20-25 min. By changing the loading angle of the magnetic field during the curing process, the mechanical properties of the MRE were improved. When the loading angle of the magnetic field is 90 degrees, the elastomer showed the best compression mechanical properties and excellent compression reversibility. Besides, for the anisotropic MRE material, the performance with magnetic compression is always better than that without magnetic compression.