Study Of Resistance-Mechanical Property Of Conductive Elastomer

The main research contents of the thesis are resistance of conductive elastomerswith different content of fillers and the change resistance and pressure when it iscompressed. The filler is conductive fibers which is made by electroless plating. The method of making conductive fibers is electroless plating. It researches thetechnics of making Ag-coated PET fiber . it look for the new technics of pre- disposaland the proportion of Ag-solution and deoxidize-solution which effect the use ofAgNO3. When the proportion of these two parts is 1:2,the use proportion is 78%, itcan meet the needs. In order to meet the need of conductivity ,the Ag-layer coated onthe PET fiber must be continuous, whole and symmetrical. We research the solutionquantity coated on unit weight PET fibers, 100ml Ag-solution and 200ml deoxidizesolution per 1g PET fiber is satisfied. The content of conductive filler effects the conductivity of conductive elastomerslargely. It research the resistance of conductive gasket when the content of filler is20%,25%,30%,35%,40% and 45%. The higher the filer content, the lower theresistance. When the filler content is 45%. Its resistance is 1.54×10-3Ω·M.。 This paper also research the change of resistance and pressure of conductiveelastomers with different filler content when it is compressed to the same proportionand compress-back circle. The higher the filler content, the larger the pressure neededto compress the elastomers to the same proportion. To th same sample, the higher thecompress, the high the resistance and pressure it is need. In the fixed compress proportion, all the samples's resistance and pressure arecome down and will be stability after about 15min. It research the resistance and pressure change of conductive elastomers whichfiller content is 20%,30% and 40% in the compress-back circle .