Research And Application On The Preparation Process And Elecrto-mechanical Response Characteristics Of IPMCs

Ionic Polymer Metal Composites(IPMCs)are a new type of ionic electroactive polymer(EAP)materials,which have good flexibility,low driving voltage,large bending deformation,and fast response.It can work in water environment and has good biocompatibility.At the same time,IPMCs can not only produce a large bending response under the action of a few volts of external electric field,but also output electrical signals when deformation occurs,which can realize the mutual conversion of electrical energy and mechanical energy,that is,it has good driving characteristics and certain sensing capabilities.It has broad development prospects in medical,bionic and MEMS applications.Although IPMCs have broad application prospects,the shortcomings of silver-based ionic polymer metal composites(Ag-IPMCs)preparation process and narrow material application limits the further development of IPMCs to a certain extent.Therefore,this paper studied the preparation process,basic electrical characteristics and bionic application of IPMCs.In view of the imperfection of the sub-electroless plating process in the preparation process of Ag-IPMCs,this paper uses DuPont’s Nafion-117 proton exchange membrane as the base membrane and adopts the electroless plating process.According to the different times of sub-electroless plating,Detailed investigations were carried out,and traditional Pt-IPMCs were prepared by electroless plating and gradient heating.Test,analyze and compare the microscopic morphology,composition,water content,surface resistance,driving performance(output displacement,output force,working medium)and sensing performance of the obtained sample.The results show that the water content of traditional Pt-IPMCs varies from 30 to 35%,the surface resistance at saturation is 25.240 Ω,and the maximum output displacement and output force are 47mm and 3.8 mN,coparaed with the prepared The Ag3 sample in Ag-IPMCs showed an excellent moisture content in the range of 36～39%during the test.The lower surface resistance in saturation is 10.76 Ω,which has a larger output displacement and output force It is 67mm and 6.7 mN,which provides useful research experience for the research of IPMCs molding technology,and provides a basis for the selection of IPMCs electrodes and the electrical modeling of IPMCs.In view of the shortcomings of the narrow application surface of IPMCs,this paper observes and analyzes the basic morphological dimensions of mimosa in nature and the response time of mimosa closing and stretching during exercise.A feedback system integrating sensing and driving is constructed,which can make the bionic mimosa close quickly when subjected to external forces,providing a new idea for the artificial intelligence landscape.