作者: Sheng Liu , Yang Liu , Hülya Cebeci , Roberto Guzmán de Villoria , Jun-Hong Lin
关键词: Composite material 、 Nanotechnology 、 Actuator 、 Nanocomposite 、 Materials science 、 Polymer 、 Electrode 、 Volume fraction 、 Carbon nanotube 、 Composite number 、 Nafion
摘要: Recent advances in fabricating controlled-morphology vertically aligned carbon nanotubes (VA-CNTs) with ultrahigh volume fraction create unique opportunities for markedly improving the electromechanical performance of ionic polymer conductor network composite (IPCNC) actuators. Continuous paths through inter-VA-CNT channels allow fast ion transport, and high electrical conduction CNTs electrodes lead to device actuation speed (>10% strain/second). One critical issue developing advanced actuator materials is how suppress strain that does not contribute (unwanted strain) thereby reducing efficiency. Here our experiments demonstrate VA-CNTs give an anisotropic elastic response electrodes, which suppresses unwanted enhances (>8% under 4 volts). The results reported here suggest pathways optimizing electrode morphology IPCNCs using ultra-high further enhanced performance.