碳纳米管、石墨烯电极修饰的IPMC致动器的制备及性能

摘要

To reduce the cost of IPMC,low-dimensional nanometer carbon materials were used to modified the platinum electrode of ionic polymer metal composites (IPMCs).The electrodes were made by the electrophoretic deposition (EPD) method from a methanol suspension of Poly (diallyldimethylammonium chloride) — modified CNT or GS.The results of SEM analysis on the specimens show that the CNT electrodes are relatively flat and uniform,and the bonding between CNT and Pt is firm.The results of the electromechanical property tests show that the CNT based IPMC actuator has a better electro-active bending deformation capability,and the maximum displacement is 13.90mm,and the maximum blocking force is 15.72mN,respectively,94％ and 77％ comparing with that of the Pt based IPMC,while the GS based IPMC only accounts for 51％ and 40％.%为降低IPMC的生产成本,采用低维纳米碳材料对IPMC铂电极进行修饰.用聚二烯二甲基氯化铵对碳纳米管和石墨烯进行带电修饰,并分散在甲醇中形成稳定的电解液,在已进行一次化学镀铂的Nafion膜上分别电泳沉积碳纳米管和石墨烯薄膜,制备新型IPMC.扫描电镜图片显示:碳纳米管和石墨烯均能成功沉积到膜的表面,且碳纳米管电极层更均匀致密,与铂层结合更紧密.驱动性能测试结果表明:碳纳米管修饰的IPMC致动性能优异,3.0V电压下最大输出位移为13.90mm,最大输出力为15.72mN,分别是同等条件下铂型IPMC的94％和77％,而石墨烯型IPMC最大输出位移和输出力分别是铂型IPMC的51％和40％.