WeChat number：
-
Where are special functional polyimide films generally used
2026-10-13Special functional polyimide film is based on ordinary PI substrate, which is endowed with special properties such as high thermal conductivity, transparency, low dielectric, conductive shielding, corona resistance, photosensitivity, and low thermal expansion through doping, surface modification, and composite coating. It is mainly used in harsh working conditions that ordinary PI film cannot meet
-
What are the key process points to pay attention to when processing and cutting unidirectional polyi
2026-10-09Unidirectional polyimide film undergoes uniaxial stretching, with molecular chains oriented along the stretching direction. There are differences in mechanical and thermal properties between the two perpendicular directions, and the slitting process needs to be controlled based on the anisotropic characteristics of the material. The main process points are as follows:
-
Chemical corrosion resistance of bidirectional polyimide film and solvents it can withstand
2026-09-28Bidirectional polyimide film is a polymer insulation substrate, which has excellent chemical corrosion resistance, solvent resistance, and hydrolysis resistance due to its highly stable aromatic condensed ring molecular structure and high-density cross-linking system. Compared with ordinary unidirectional PI films, PET, PP, PC and other films, the biaxial stretching process makes its molecular arr
-
What is the heat resistance of F46 polyimide film
2026-09-22F46 polyimide film (FH single-sided/FHF double-sided, PI substrate coated with FEP perfluoroethylene propylene) is a composite film, and its heat resistance is determined by two layers of PI substrate and F46 fluorine coating. The PI substrate is heat-resistant, and the surface FEP has a melting point, which is the key boundary point of the material's heat resistance.
-
What is the chemical solvent resistance of unidirectional polyimide film
2026-09-17Unidirectional polyimide (PI) films are prepared by uniaxial stretching process, with molecular chains mainly oriented along the stretching direction, and the binding force between transverse molecular chains is relatively weak. The overall chemical stability of polyimide material is inherent, but its anisotropy results in significant differences in solvent resistance in different directions, whic
-
What performance indicators will be changed by the stretching orientation process of unidirectional
2026-09-08Unidirectional polyimide film is stretched in a single direction before and after imidization, causing the polymer chains to be oriented along the stretching direction, resulting in significant anisotropy in the longitudinal and transverse properties of the film, and changing various performance indicators below.
-
What is the function of special functional polyimide film
2026-09-01Basic characteristics of ordinary polyimide film: high and low temperature resistance (-269 ℃~280 ℃ long-term use, short-term 400 ℃), high insulation, radiation resistance, flame retardancy, chemical corrosion resistance, commonly known as "golden film". Special functional polyimide film is a type of film made by doping fillers, surface coating, molecular modification, and composite coating on a b
-
What are the applications of F46 polyimide film in the aerospace field
2026-08-251、 Spacecraft onboard cables and wiring harness insulation packaging (satellite core applications) This is the most mature aerospace application of F46-PI film. 1. Spaceborne wire wrapping insulation: FHF double-sided coated F46 film wrapping cable is used, and after high-temperature treatment, the F46 coating melts and self fuses to form a closed insulation sheath, without the need
-
What is the working principle of online thickness gauge
2026-08-18Online thickness gauges are used in continuous production lines for films, non-woven fabrics, rubber, sheets, lithium battery electrodes, coatings, glass fibers, plastic films, etc. They measure thickness in real-time without interruption and have closed-loop feedback control. There are four common principles, and industrial scenarios are clearly distinguished:
-
What are the mainstream application scenarios of F46 polyimide film
2026-08-11First, we would like to reiterate the core characteristics: high temperature resistance and high insulation of PI substrate; Surface F46 (FEP) has the core advantages of hot melt self-adhesion, moisture and oil resistance, chemical corrosion resistance, and no need for glue. It can be self-adhesive and sealed by high temperature hot pressing, which cannot be replaced by ordinary pure PI film.
Home
Product
Wechat
Telephone