Hydrophobicity, surface charge and DC flashover characteristics of direct-fluorinated RTV silicone rubber

  title={Hydrophobicity, surface charge and DC flashover characteristics of direct-fluorinated RTV silicone rubber},
  author={B. X. Du and Zhongzhou Li},
  journal={IEEE Transactions on Dielectrics and Electrical Insulation},
Silicone rubber (SiR), as a basic insulating material, is widely used in insulators for HVDC transmission lines. The prominent characteristics of the SiR coating are the hydrophobicity and the hydrophobicity recovery, which can suppress the development of leakage currents and dry-band discharges, and prevent the flashover incidents. Fluorination is a method to change the chemical component of the surface layer of polymers, which could induce the corresponding change in hydrophobicity and some… CONTINUE READING


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