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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
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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
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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:
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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.
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What are the main materials of bidirectional polyimide film
2026-08-041、 Chemical composition of basic materials Main material: Aromatic polyimide polymer The precursor polyamide acid (PAA) is formed by condensation of aromatic dianhydride monomers and aromatic diamine monomers in polar solvents. It is then subjected to casting, longitudinal and transverse synchronous stretching, and high-temperature thermal imidization to form a rigid imide heterocycl
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Where is the high insulation performance of unidirectional polyimide film reflected
2026-07-28First, clarify the concept: Unidirectional polyimide film=Unidirectional oriented PI film, with molecular chains oriented along the stretching direction. Compared with ordinary bidirectional BOPI and unstretched cast PI, it has differentiated advantages in insulation, voltage resistance, and breakdown characteristics. It is widely used in flexible copper-clad laminates (FCCL), motor insulation, ca
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What are the core outstanding properties of polyimide film
2026-07-231. Ultra wide temperature range thermal stability (the most iconic performance) Long term continuous use temperature: -269 ℃~220~240 ℃ Can withstand high temperatures of 300-400 ℃ for a short period of time; No obvious melting point, does not melt at high temperatures; Equipped with self extinguishing and flame-retardant properties, it automatically stops burning when the fire source i
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What is the chemical stability of F46 polyimide film
2026-07-14The F46-PI film combines the chemical properties of PI substrate and FEP (perfluoroethylene propylene), with the F46 fluororesin insulating medium on the surface and polyimide on the inner layer to ensure substrate stability. The overall chemical resistance far exceeds that of pure PI film.
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What are the applications of colorimeters in the printing industry
2026-07-07Core pain points in the printing industry: batch color difference, overprint color deviation, paper base color interference, customer color samples not meeting standards, high rework losses; The colorimeter achieves standardized color control by quantifying Lab color values and Δ E color difference values, covering the entire process of incoming materials, sampling, machine printing, post laminati
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What are the advantages of bidirectional polyimide film compared to unidirectional stretching PI fil
2026-07-011. Mechanical properties are balanced in both directions, with no obvious shortcomings Unidirectional tensile PI only has high strength in the tensile direction (MD longitudinal), but poor transverse TD toughness: Bidirectional membrane: The longitudinal and transverse tensile strength, modulus, and tear strength are almost the same, with minimal anisotropy;
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