Composition, polyamideimide, polyamideimide film and preparation method and application of polyamideimide film
By using dianhydride compounds, diamine compounds and crosslinking agents to prepare polyamide imides, the problem of poor mechanical properties of enameled wire paint at lower dielectric constants is solved, and the dielectric constant reduction and mechanical properties are achieved is achieved, and the reliability and life of the motor is enhanced.
Patent Information
- Application Number
- CN202411999051.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-29
AI Technical Summary
The mechanical properties of enameled wire paint are poor at low dielectric constants, resulting in electrical short circuits, current leakage and breakdown of the motor under high voltage conditions.
Using a composition, including a dianhydride compound, a diamine compound and a crosslinking agent, polyamide imide is formed by crosslinking reaction to form a pore structure to reduce the dielectric constant while forming a three-dimensional network structure to improve mechanical properties.
It achieves the improvement of the mechanical properties of polyamide imide materials while at a lower dielectric constant, enhances the adhesion, wear resistance, impact resistance and flexibility of the enameled wire paint, and extends the life and reliability of the motor.