Two-dimensional computational model for electrostrictive graft elastomer
Two-dimensional computational model for electrostrictive graft elastomer
复制标题
电致伸缩接枝弹性体的二维计算模型
DOI：
10.1117/12.484434
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Ji Su
中科院分区：
文献类型：
--
作者：
Youqi Wang;Xuekun Sun;Changjie Sun;Ji Su
电致伸缩接枝弹性体是一种新型的电活性聚合物。最近由美国宇航局开发，它由灵活的主链组成，每个主链都有侧链，称为接枝。相邻主干的接枝在物理上交联并形成晶体单元。柔性主链和晶体接枝单元由极化单体组成，其中包含带部分电荷的原子，产生偶极矩。极化畴是由晶体单元中的偶极矩产生的。当弹性体被置于电场中时，外部旋转力矩被施加到极化域。它刺激极化晶体接枝单元的旋转，从而进一步引起弹性体的变形。本文建立了二维计算模型来分析接枝弹性体的变形机理。
The electrostrictive graft elastomer is a new type of electromechanically active polymer. Recently developed by NASA, it consists of flexible backbone chains, each with side chains, called grafts. Grafts from neighboring backbones physically cross-link and form crystal units. The flexible backbone chains and the crystal graft units are composed of polarized monomers, which contain atoms with electric partial charges, generating dipole moments. Polarized domains are created by dipole moments in the crystal units. When the elastomer is placed into an electric field, external rotating moments are applied to polarized domains. It stimulates the rotation of the polarized crystal graft units, which further induces deformation of the elastomer. In this paper, two-dimensional computational models are established to analyze the deformation mechanism of the graft elastomer.