电晕放电对户外绝缘用硅橡胶憎水性的影响
Abstract(#br)High temperature vulcanized (HTV) silicone rubber (SR) specimens with a clean surface or a surface covered by a contamination layer were exposed to the corona discharge generated by a needle-plate electrode system. Hydrophobicity loss and recovery processes were investigated during and after corona exposure. In addition, physicochemical analyses on the specimens were carried out using scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and gas chromatography/mass spectrometry (GC/MS).