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With the rapid construction and development of extra-high voltage power grids, the performance and reliability of the oil-paper insulation system inside the transformer is increasingly demanding. Extra-high voltage grid development demands higher transformer oil-paper insulation reliability. Addressing cellulose insulation paper hydrolysis/aging, KH570-SiO2@PDMS composite coatings offer hydrophobic modification. Performance stability under complex transformer conditions requires optimal coating ratios. Molecular dynamics modeled pure PDMS and KH570-SiO2@PDMS composites varying ratios. Mechanical parameters, MSD, FFV, CED, and dipole moments were calculated. Results confirm the 30% ratio KH570-SiO2@PDMS coating achieves optimal stability across all properties, enhancing hydrophobic durability of coated cellulose insulation in complex operational environments.

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Simulation Study on the Performance of KH570-SiO2@PDMS Composite Coating Under Different Ratios

  • 会议论文

  • 发表日期：

    2026年

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  • Zengchao Wang,
  • Chuanhui Cheng,
  • Yuan La,
  • Ran Zhuo,
  • Dayu Liu,
  • Zuhao Wang,
  • Chao Tang

摘要

With the rapid construction and development of extra-high voltage power grids, the performance and reliability of the oil-paper insulation system inside the transformer is increasingly demanding. Extra-high voltage grid development demands higher transformer oil-paper insulation reliability. Addressing cellulose insulation paper hydrolysis/aging, KH570-SiO2@PDMS composite coatings offer hydrophobic modification. Performance stability under complex transformer conditions requires optimal coating ratios. Molecular dynamics modeled pure PDMS and KH570-SiO2@PDMS composites varying ratios. Mechanical parameters, MSD, FFV, CED, and dipole moments were calculated. Results confirm the 30% ratio KH570-SiO2@PDMS coating achieves optimal stability across all properties, enhancing hydrophobic durability of coated cellulose insulation in complex operational environments.