具有梯度结构的三维IPMC的制备及表征

发布时间：2018-01-30 21:54

  本文关键词： 三维IPMC 形变位移 输出力 非水工作时间 乙二醇　出处：《功能材料》2017年07期 　论文类型：期刊论文

【摘要】：离子聚合物金属复合材料(ionic polymer metal composite,IPMC)是一种离子型电活性聚合物,具有驱动电压低、位移变形量大、反应迅速和质量轻等优点,作为新型的电致动材料具有广阔的应用前景。但是现有的IPMC电致动材料存在输出力小和非水工作时间短的缺点。通过制备厚度上具有梯度变化的三维IPMC来提高IPMC的驱动性能;采用不易电解挥发、稳定性较好的乙二醇作为IPMC的工作介质,延长IPMC的非水工作时间。研究结果表明,在相同幅值的正弦交流电压下,具有一定梯度结构的IPMC能够显著提高其形变位移和输出力,幅值为3.5V时,形变位移和输出力较相同质量厚度的平面型IPMC分别提升了7.0%和47.9%;用乙二醇置换水作为工作介质的平面型IPMC,其非水工作时间得到大幅提升,从150s延长至300s。IPMC电机械输出性能的提升和非水工作时间的延长对于IPMC在驱动领域的进一步应用开发具有重要意义。
[Abstract]:Ionic Polymer Metal Composites (IPC) is an ionic electroactive polymer with low driving voltage. The advantages of large displacement and deformation, rapid reaction and light mass, etc. As a new type of electromotive material, it has a wide application prospect. However, the existing IPMC electromotive material has the disadvantages of low output force and short non-aqueous working time. MC to improve the driving performance of IPMC; Ethylene glycol, which is not easily volatilized by electrolysis and has good stability, is used as the working medium of IPMC to prolong the non-aqueous working time of IPMC. The results show that under the same amplitude of sinusoidal AC voltage. The deformation displacement and output force of IPMC with a certain gradient structure can be significantly increased when the amplitude is 3.5 V. The deformation displacement and output force increased by 7.0% and 47.9, respectively, compared with the plane IPMC with the same mass thickness. The non-aqueous working time of planar IPMCs with ethylene glycol substituted water as working medium has been greatly improved. The extension from 150s to 300s. The improvement of electromechanical output performance and the extension of non-water working time are of great significance for the further application and development of IPMC in the driving field.
【作者单位】： 南京航空航天大学航天学院仿生结构与材料防护研究所;南京航空航天大学材料科学与技术学院;
【基金】：国家自然科学基金面上资助项目(51175251);国家自然科学基金青年资助项目(51605220) 江苏省自然科学基金青年资助项目(BK20160793)
【分类号】：TB33
【正文快照】： 0引言电活性聚合物(electro active polymer)具有特殊的机电耦合特性,在电场刺激下能够产生一定的变形。离子聚合物金属复合材料(ionic polymer metal com-posite,IPMC)是一种新型的离子型电活性聚合物,其结构包括3层,中间层是用于离子交换的Nafion膜,上下层是夹在Nafion膜两，

本文编号：1477325