Polyimide film main body material with high light transmittance, film coating, composite film material and preparation and application thereof
By introducing aromatic phosphorus-containing diamine and alicyclic dianhydride monomers into polyimide films, and combining them with fillers and additives, a composite film structure is formed, which solves the problem of balancing optical transparency and antigenic oxygen properties, improves the light transmittance and corrosion resistance of the film, and is suitable for aerospace and flexible optoelectronic fields.
Patent Information
- Application Number
- CN202610010183.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-06
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2046-01-06
AI Technical Summary
Existing polyimide films present a conflict between optical transparency and antigenic oxygen properties, and the long-term effectiveness and stability of the antigenic oxygen protective layer are insufficient, making it prone to "drilling" phenomena.
Aromatic phosphorus-containing diamine and alicyclic dianhydride monomers are mixed with organic solvents, and fillers and additives are added to form a polyimide film substrate through polymerization reaction. The substrate is then coated onto a polyimide base film to form a composite film structure.
It improves the light transmittance and interfacial adhesion of the thin film, while enhancing its resistance to atomic oxygen erosion, maintaining the optical transparency and mechanical properties of the thin film, making it suitable for the field of space exploration.