Heynova can provide temperature-resistant grade as 220 ℃, 260 ℃, 300 ℃, 350 ℃ above the ultra-high-temperature-resistant special engineering plastics - polyimide profiles according to the specific needs of customers, such as rods, plates, tubes and injection molding, machining of manufactured products. Polyimide can be compounded with molybdenum disulfide, graphite, carbon fiber, polytetrafluoroethylene, etc., which can greatly change the mechanical strength of the material and self-lubricating wear-resistant properties. Our company can customize the materials with different formulations according to the different requirements of the working conditions of the customers' products.
Polyimide (PI) is an aromatic heterocyclic polymer material containing an imide group in the main chain, which belongs to the high-performance varieties of special engineering plastics. Its molecular structure consists of rigid aromatic rings and imide groups, giving it excellent comprehensive performance, including high temperature resistance, mechanical strength, chemical stability and electrical insulation, widely used in extreme environments, structural and functional materials.
Polyimide engineering plastics have become the material of choice for replacing metals and traditional plastics. Polyimide engineering plastics have become the material of choice for replacing metals and traditional plastics due to their “high temperature resistance, high strength and multi-functionality”characteristics, and are irreplaceable in high-tech fields such as aerospace, semiconductors, and new energy. Despite the high cost, its performance advantages make it continue to occupy a central position in high-end manufacturing.
Superior High Temperature Resistance
Instantaneous resistance to high temperatures above 400°C, long-term use temperature range -269°C to 260°C, no significant melting point.
High strength and stability
Tensile strength up to 530MPa (biphenyl type film), excellent dimensional stability, outstanding creep resistance.
Excellent insulation and dielectric properties
Low dielectric constant (about 3.4) and high dielectric strength (100-300kV/mm), suitable for high frequency electronic equipment.
Chemical and environmental resistance
Acid, oil and irradiation resistance, flame retardant self-extinguishing, low smoke rate, can be used for a long time in a strong corrosive and radiation environment.
Lightweight & Design Flexibility
Low density (1.3-1.5g/cm³), can be molded, injection molding, support complex structural design, suitable for precision machinery and medical equipment.
Aerospace
Manufacture of engine components, aircraft structural parts, rocket fuel system parts and composite reinforced matrices, such as carbon fiber reinforced polyimide composites for supersonic aircraft fuselages. As thermal insulation and high temperature resistant seals for extreme temperature and radiation environments.
Electronics and Microelectronics Industry
Flexible circuit boards (FPC), liquid crystal display oriented films, encapsulation materials and photoresists to support high-density integrated circuits and flexible screen technology. For high-frequency insulating materials, electromagnetic shielding and high-temperature resistant connectors.
Automotive and Machinery Manufacturing
Produces high temperature resistant gears, bearings, brake pads and engine peripheral parts, replacing metal materials to reduce weight. Used in oil pumps, transmissions and other corrosion-resistant, high-load mechanical components.
Energy and Environmental Protection
Chalcogenide solar cell backsheets, fuel cell diaphragms and high temperature gas separation membranes. High-performance foams for naval heat insulation and noise reduction and new energy battery insulation.
Specialty Functional Materials
High-temperature-resistant fibers are used in fireproof fabrics, bulletproof materials and high-temperature filtration media. Irradiation-resistant coatings and adhesives for nuclear industry and aerospace sealing scenarios.
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