Enhancing the anti-fouling and tracking resistance of silicone rubber is important to expand its application in outdoor high voltage insulation field. In this work, fluorosilicone resin (FSR) was synthesized by the sol-gel reaction of perfluorooctyltriethoxysilane and ethyl silicate. The effect of FSR on the tracking resistance of addition-cure liquid silicone rubber (ALSR) was investigated by inclined-plane test (IPT), plasma irradiation test, static contact angle measurement, attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) and infrared thermal image. The results showed that FSR could effectively improve the tracking resistance of ALSR. When FSR content was 0.5 phr, ALSR/FSR passed the IPT without overcurrent in 6 h under the applied alternating voltage of 4.5 kV and the erosion mass was only 2.14 wt%. In addition, the anti-plasma irradiation of ALSR/FSR was enhanced. FSR could improve the hydrophobicity of ALSR and reduce the accumulation of contamination on the surface. During the IPT, FSR could delay the occurrence of intensive arc discharge and diminish the number of arc discharge. When the dry-band arcing happened, FSR could dissipate the injected charges and suppress the arc discharge. Thus, the tracking resistance of ALSR was enhanced.

增强硅橡胶的防污和耐漏电起痕能力对于扩大其在室外高压绝缘领域的应用至关重要。在这项工作中，通过全氟辛基三乙氧基硅烷和硅酸乙酯的溶胶-凝胶反应合成了氟硅树脂（FSR）。通过斜面试验（IPT），等离子辐射试验，静态接触角测量，衰减全反射傅里叶变换红外光谱（ATR-FTIR），研究了FSR对加成固化液态硅橡胶（ALSR）耐漏电痕迹的影响。 ）和红外热像仪。结果表明，FSR可以有效提高ALSR的抗漏电性能。当FSR含量为0.5 phr时，在施加4.5 kV交流电压的情况下，ALSR / FSR在6小时内通过了IPT而没有过电流，并且腐蚀质量仅为2.14 wt％。此外，增强了ALSR / FSR的等离子照射。FSR可以改善ALSR的疏水性并减少表面污染物的积累。在IPT期间，FSR可以延迟密集电弧放电的发生并减少电弧放电的次数。当发生干带电弧时，FSR可以驱散注入的电荷并抑制电弧放电。因此，增强了ALSR的耐漏电性。