Control of the Damping Properties of Magnetorheological Elastomers by Using Polycaprolactone as a Temperature-Controlling Component
Control of the Damping Properties of Magnetorheological Elastomers by Using Polycaprolactone as a Temperature-Controlling Component
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以聚己内酯作为温控组分控制磁流变弹性体的阻尼性能
DOI：
10.1021/ie300317b
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发表时间：
2012-05-09
影响因子：
4.2
通讯作者：
Peng, Chao
中科院分区：
文献类型：
--
作者：
Gong, Xinglong;Fan, Yanceng;Peng, Chao
研制了一种阻尼性能可控的新型磁流变弹性体。选择聚己内酯（PCL）作为顺丁橡胶（BR）基MRE的温度可控组分。制备了几种不同BR/PCL质量比的样品。用流变仪测定了样品的动态性能，包括损耗因子、剪切储能模量和损耗模量。差示扫描量热法（DSC）分析表明，PCL是一种相变材料，它可以从一个半结晶固体转化为液化软材料，通过增加周围的温度高于PCL的熔点。实验结果表明，磁流变阻尼材料的阻尼性能可以通过改变PCL的重量比，温度和磁场来控制。提出了控制机理，分析了影响因素。最后，还观察到了磁感应模量和磁电阻效应的变化。
A novel kind of magnetorheological elastomers (MREs) with controllable damping properties was developed in this study. Polycaprolactone (PCL) was selected as the temperature-controllable component in the cis-polybutadiene rubber (BR) based MREs. Several samples with different BR/PCL mass ratio matrixes were prepared. The dynamic performances of the samples, including loss factor, shear storage modulus, and loss modulus, were measured with a rheometer. Differential scanning calorimetry (DSC) analysis indicated that PCL is a phase change material and it can transform from a semicrystalline solid to a liquated soft material by increasing the surrounding temperature above the PCL melting point. Experimental results showed that the damping properties of the MREs can be controlled by varying the PCL weight ratio, the temperature, and the magnetic field. The controlling mechanism was proposed and the influence factors were analyzed. Last, it was also observed that the magneto-induced modulus and the MR effect of...