| Due to the increasingly serious environmental pollution,the serious shortage of fossil energy such as petroleum gas,and the energy demand under various conditions,it is the general trend to study new green and non-polluting new energy sources.Dielectric elastomer(DE)materials have attracted the attention of researchers due to their light weight,low cost,and high efficiency.DE power generation does not consume fossil energy,nor does it produce carbon dioxide and other substances that cause global warming.In addition,DE materials are in addition to It can be used to generate electricity,and can also be widely used in sensors,electric drive units,etc.This paper expounds the power generation principle,development status and latest progress of DE materials,and takes polydimethylsiloxane(PDMS)as the research object to deeply explore its advantages and disadvantages as a dielectric elastomer for power generation,and summarizes the advantages and disadvantages of this paper.research content.The raw materials and preparation process of the dielectric layer and the electrode layer of the dielectric elastomer were introduced,and the ability of the material to discharge air bubbles independently and the curing standard were tested.Independently designed the imprinting mold,studied its imprinting process and curing process,etc.,and explored and manufactured single-layer and multi-layer structure power generation units with PDMS as the main raw material of the dielectric layer and electrode layer.The multi-functional self-developed in the laboratory Its power generation performance and physical properties were tested on a tensile device.According to the calculation of existing materials such as dielectric elastomers and electrodes,the number of tensile layers of 123 layers on one side of the knee brace,the thickness of each dielectric layer of 0.07 mm,the thickness of the electrode layer of 0.02 mm,and the total power generation of11 mm are determined.The total thickness of the element.At the same time,the stretching method of the power generation unit from 80mm(length)×120mm(width)to 180mm(length)×120mm(width)in pure shear mode with a total stretching length of 100 mm is also determined,and a kind of stretching method is proposed.A new type of stretching and magnifying device,and this stretching and magnifying device was tested on a flat surface and on a knee brace device. |