Research on the Application of Titanium Dioxide Nanotubes in Insulating Resins

Abstract

The commonly used insulation paint for electric vehicle motors currently has poor flame retardancy, toughness, thermal stability, and wear resistance due to the use of polymer materials. In order to further improve the performance of insulation paint, it is necessary to doping inorganic materials. However, in order to achieve high performance, high doping is generally required, and high doping faces problems such as poor compatibility between doped particles and insulation paint. In order to further improve the flame retardancy, toughness, thermal stability, and wear resistance of insulation paint, researchers generally use the method of doping inorganic particle materials. Research has found that nano inorganic materials (such as nano titanium dioxide) can improve the flame retardancy of materials while also improving their thermal and mechanical properties. However, in order to achieve high performance, insulating paint generally requires high doping, and high doping will face problems such as poor compatibility between doped particles and insulating paint. On the one hand, due to the large size and uneven dispersion of doped particles, it is difficult to achieve a good composite effect; On the other hand, the incompatibility between thermal conductive materials and organic surface interfaces further limits the effectiveness of the material. Therefore, introducing titanium dioxide nanotube materials with smaller dimensions, better dispersibility, and surface hydrophobicity treatment into the insulation paint can improve the compounding effect and further enhance the resistance to ATF oil and flame retardancy of the insulation paint.