Ion-exchange Polymer-Metal Composites(IPMCs)gain huge attentions due to large deformation,rapid electromechanical response,and high energy conversion efficiency.Deflection of IPMC arises from the volumetric swelling e...Ion-exchange Polymer-Metal Composites(IPMCs)gain huge attentions due to large deformation,rapid electromechanical response,and high energy conversion efficiency.Deflection of IPMC arises from the volumetric swelling effect induced by the concentration gradient of hydrated cations between the two electrodes,thus the volume of hydrated cation deter-mines the motion magnitude and direction of IPMC.H ion is one of the most commonly used driving cations for IPMC.However,due to its unique characteristics,particularly the inability to accurately quantify its hydration volume,existing literatures primarily focus on the physical driving models for metallic cations,i.e.,Na+,no driving model for the H ion is reported until now.This paper proposes a novel model of H ion escape from the water's body-centered cubic lattice to count the hydration volume.Number(n)of water molecules carried by the H ion is solved by combining the Lennard-Jones potential energy function with Maxwell's velocity distribution.The specific n value is equivalent to 4.04 for the H ion inside Nafion electrolyte under a 3.0 V DC electric field.Substituting it into the classic Friction Model(proposed by Tadokoro et al.at 2000),actuation behaviors of H ion driven IPMC were therefore achieved through Matlab calculations and Abaqus simulations.The calculated results of dynamic displacement and force highly match to the experimental data form the Nafion IPMC actuator driven by same electric field,showing a highly reliability of the established escape model.展开更多
In this paper,three different roughening route planning methods(free coarsening,vertical coarsening,circling coarsening)were designed to pre-treat the basement membrane.The platinum IPMC was prepared by electroless pl...In this paper,three different roughening route planning methods(free coarsening,vertical coarsening,circling coarsening)were designed to pre-treat the basement membrane.The platinum IPMC was prepared by electroless plating to observe their surface morphology and test their performances such as output displacement and blocking force.The results show that the platinum electrode of the vertical coarsening route planning of IPMC is distributed in the shape of fish scales and is the most compact and regular on the surface electrode.The thickness of the platinum electrode layer is about 13μm,the maximum output displacement is 54.89 mm,the blocking force of 15.46 mN,and the maximum strain energy density of the IPMC of 2.44 KJ/m^(3).Vertical coarsening route planning can significantly improve the electrodynamic properties of IPMC,and it is recommended that the surface roughening of IPMC be utilized in the research and application of IPMC.It lays a certain experimental foundation for the performance improvement and innovation research and development of IPMC in the subsequent stage.展开更多
IPMC(ion-exchange polymer metal com-posite)离子交换聚合物-金属复合材料)是一种人工肌肉材料,其较低的驱动电压能产生较大的位移变形,研究了IPMC这种智能材料的输出力特性。实验选取了不同电压幅值,不同频率的方波、三角波、正弦波...IPMC(ion-exchange polymer metal com-posite)离子交换聚合物-金属复合材料)是一种人工肌肉材料,其较低的驱动电压能产生较大的位移变形,研究了IPMC这种智能材料的输出力特性。实验选取了不同电压幅值,不同频率的方波、三角波、正弦波3种波形作为电激励信号,通过力传感器实测了IPMC试样末端的输出力。结果表明,随着电压幅值的增大,其输出力也增大;随着电刺激信号频率的降低,其输出力也增大;而波形对其输出力影响不显著。展开更多
理论分析了离子聚合物金属复合材料(ionic polymer metal composites,简称IPMC)的传感机理和数学模型;主要针对其传感性能进行了实验研究,给出了在不同工作频率下的传感器标定曲线与灵敏度测试结果,并分析了其灵敏变化原因;最后对传感...理论分析了离子聚合物金属复合材料(ionic polymer metal composites,简称IPMC)的传感机理和数学模型;主要针对其传感性能进行了实验研究,给出了在不同工作频率下的传感器标定曲线与灵敏度测试结果,并分析了其灵敏变化原因;最后对传感器进行的重复性能的测试。实验结果表明,IPMC传感器线性度好、重复性能好、在低频范围内灵敏度较高、检测结果稳定可靠。展开更多
离子聚合物金属复合物(ionic polymer metal composite,IPMC)是一种新型离子型电致动聚合物,具有在低电压驱动下产生大变形的特点而有广阔的应用前景。通过在IPMC表面制作图案化电极,使其在电压驱动下实现扭转运动。针对图案化电极的结...离子聚合物金属复合物(ionic polymer metal composite,IPMC)是一种新型离子型电致动聚合物,具有在低电压驱动下产生大变形的特点而有广阔的应用前景。通过在IPMC表面制作图案化电极,使其在电压驱动下实现扭转运动。针对图案化电极的结构尺寸对其扭转特性的影响进行研究,得到图案化电极IPMC的扭转特性规律。同时针对贴合方式IPMC的结构尺寸变化对其扭转特性的影响进行研究,并比较两种IPMC的扭转运动效果,得出制备可实现扭转运动IPMC的影响因素。展开更多
基金National Natural Science Foundations of China(52275295)Central Plains Science and Technology Innovation Leading Talents(234200510026).
文摘Ion-exchange Polymer-Metal Composites(IPMCs)gain huge attentions due to large deformation,rapid electromechanical response,and high energy conversion efficiency.Deflection of IPMC arises from the volumetric swelling effect induced by the concentration gradient of hydrated cations between the two electrodes,thus the volume of hydrated cation deter-mines the motion magnitude and direction of IPMC.H ion is one of the most commonly used driving cations for IPMC.However,due to its unique characteristics,particularly the inability to accurately quantify its hydration volume,existing literatures primarily focus on the physical driving models for metallic cations,i.e.,Na+,no driving model for the H ion is reported until now.This paper proposes a novel model of H ion escape from the water's body-centered cubic lattice to count the hydration volume.Number(n)of water molecules carried by the H ion is solved by combining the Lennard-Jones potential energy function with Maxwell's velocity distribution.The specific n value is equivalent to 4.04 for the H ion inside Nafion electrolyte under a 3.0 V DC electric field.Substituting it into the classic Friction Model(proposed by Tadokoro et al.at 2000),actuation behaviors of H ion driven IPMC were therefore achieved through Matlab calculations and Abaqus simulations.The calculated results of dynamic displacement and force highly match to the experimental data form the Nafion IPMC actuator driven by same electric field,showing a highly reliability of the established escape model.
基金financially supported by the Key Science and Technology Program of Shaanxi Province,China[2016KTZDGY-02-03].
文摘In this paper,three different roughening route planning methods(free coarsening,vertical coarsening,circling coarsening)were designed to pre-treat the basement membrane.The platinum IPMC was prepared by electroless plating to observe their surface morphology and test their performances such as output displacement and blocking force.The results show that the platinum electrode of the vertical coarsening route planning of IPMC is distributed in the shape of fish scales and is the most compact and regular on the surface electrode.The thickness of the platinum electrode layer is about 13μm,the maximum output displacement is 54.89 mm,the blocking force of 15.46 mN,and the maximum strain energy density of the IPMC of 2.44 KJ/m^(3).Vertical coarsening route planning can significantly improve the electrodynamic properties of IPMC,and it is recommended that the surface roughening of IPMC be utilized in the research and application of IPMC.It lays a certain experimental foundation for the performance improvement and innovation research and development of IPMC in the subsequent stage.
文摘IPMC(ion-exchange polymer metal com-posite)离子交换聚合物-金属复合材料)是一种人工肌肉材料,其较低的驱动电压能产生较大的位移变形,研究了IPMC这种智能材料的输出力特性。实验选取了不同电压幅值,不同频率的方波、三角波、正弦波3种波形作为电激励信号,通过力传感器实测了IPMC试样末端的输出力。结果表明,随着电压幅值的增大,其输出力也增大;随着电刺激信号频率的降低,其输出力也增大;而波形对其输出力影响不显著。
文摘理论分析了离子聚合物金属复合材料(ionic polymer metal composites,简称IPMC)的传感机理和数学模型;主要针对其传感性能进行了实验研究,给出了在不同工作频率下的传感器标定曲线与灵敏度测试结果,并分析了其灵敏变化原因;最后对传感器进行的重复性能的测试。实验结果表明,IPMC传感器线性度好、重复性能好、在低频范围内灵敏度较高、检测结果稳定可靠。
文摘离子聚合物金属复合物(ionic polymer metal composite,IPMC)是一种新型离子型电致动聚合物,具有在低电压驱动下产生大变形的特点而有广阔的应用前景。通过在IPMC表面制作图案化电极,使其在电压驱动下实现扭转运动。针对图案化电极的结构尺寸对其扭转特性的影响进行研究,得到图案化电极IPMC的扭转特性规律。同时针对贴合方式IPMC的结构尺寸变化对其扭转特性的影响进行研究,并比较两种IPMC的扭转运动效果,得出制备可实现扭转运动IPMC的影响因素。
