An anti-fouling porcelain insulator and a preparation method and application thereof
By forming a film layer on the surface of porcelain insulators with organic fluorine-silicon segments embedded in an inorganic silicon-oxygen network, combined with a step-by-step film-forming process using functional glaze slurry and surface locking liquid, the problem of easy aging and peeling off of porcelain insulator surfaces is solved. This achieves improved high hydrophobicity, strong adhesion, and long-term stability, significantly enhancing pollution flashover voltage and insulation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGXI YILONG ELECTRIC CO LTD
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-17
AI Technical Summary
The organic coating on the surface of existing porcelain insulators is prone to aging and peeling off. The inorganic-organic hybrid functional layer is difficult to achieve high hydrophobicity, high resistivity, strong adhesion and long-term environmental stability, and cannot meet the requirements of long-term maintenance-free power equipment.
A fluorinated organosilicon copolymer polysilsesquioxane precursor and a tetraethoxysilane-boric acid system are polycondensed under stepwise acid/base catalysis to form organofluorine-silicon segments uniformly embedded in an inorganic silicon-oxygen network. Combined with a step-by-step film-forming process of two-stage spraying of functional glaze slurry and surface locking liquid, a dense, chemically anchored film layer is formed by step-by-step temperature rise and curing.
It achieves improved hydrophobicity, mechanical strength and insulation, significantly suppresses the increase in leakage current after the contaminant layer becomes damp, improves flashover voltage, and significantly enhances film stability and adhesion, meeting the requirements for long-term environmental stability.