Polyimide Sheet Vespel SP-1 equivalent

HONYPLAS®polyimide PI sheet is a new type of high temperature resistant thermosetting engineering plastic, because it can maintain high physical and mechanical properties in a wide range of temperatures from -270-400 ° C, and can be used in the air at -240-260 ° C for a long time, and has Excellent electrical insulation, wear resistance, high temperature radiation resistance and physical and mechanical properties. There are many synthetic methods and can be processed by various methods. Therefore, it is widely used in aviation, aerospace, electrical appliances, machinery, chemicals, microelectronics, instruments, petrochemicals It is widely used in high-tech fields such as metrology and metrology, and has become one of the indispensable materials in cutting-edge technology fields such as global rockets and aerospace. In addition, glass fiber is added to PI. Graphite and boron fibers can be reinforced to obtain higher hardness and strength, which can replace metal to manufacture jet engine structural components. PI resin can be used as a self-lubricating material after being filled with graphite or polytetrafluoroethylene (PTFE), and can be used to manufacture high-temperature resistant brake pads after adding wear-resistant fillers.

DuPont Vespel is the most typical representative of polyimide (PI) plastic series.
VESPEL-SP1 (brown): The basic specification has the highest mechanical strength and electrical properties.
VESPEL-SP21 (Black): Added 15% graphite filled specification to provide wear characteristics and heat resistance.
VESPEL-SP211 (Black): Filled with 15% graphite and 10% PTFE for the lowest static coefficient of friction. Suitable for medium temperature environment.
VESPEL-SP22 (black): 40% graphite filled specification for the smallest expansion coefficient and highest creep resistance.
VESPEL-SP3 (black): Filled with 15% molybdenum disulfide, suitable for friction sliding requirements in vacuum or inert gas.

HONYPLAS®polyimide PI sheet Features and performance
(1) Parts with low friction coefficient and wear resistance under high speed and high pressure;
(2) Parts with excellent creep resistance or plastic deformation;
(3) Parts with excellent self-lubricating or oil-lubricating properties;
(4) Liquid sealing parts under high temperature and high pressure;
(5) Components with high bending resistance, tensile strength and high impact resistance;
(6) Corrosion-resistant, radiation-resistant, and rust-resistant parts;
(7) Parts whose temperature exceeds 300°C for a long time and 400~450°C for a short period of time;
(8) For microelectronic packaging, stress buffering protective coating, interlayer insulation of multilayer interconnection structure, dielectric film, chip surface passivation, etc.

HONYPLAS®polyimide PI sheet application range
Because polyimide has high and low temperature resistance (-269~400°C), high friction resistance, self-lubricating, high strength, high insulation, radiation resistance, corrosion resistance, small thermal expansion coefficient, resistance to organic solvents, self-extinguishing, non-toxic, etc. Comprehensive performance. The short-term high temperature resistance is above 400°C, the long-term use temperature range is -200~300°C, some parts have no obvious melting point, high insulation performance, the dielectric constant is 4.0 at 10 Hz, and the dielectric loss is only 0.004~0.007, belonging to F to H grades Insulation, can replace metal, ceramics, PTFE and other engineering plastics in many cases. Polyimide is used as sealing material, structural material, heat insulation material, friction material, high temperature coating in aerospace, military industry, automobile, compressor, large motor, pump, tobacco machinery, textile machinery, engineering machinery, office machinery, electronics Products, mold industry, etc. have been widely used as parts for high temperature resistance, wear resistance, self-lubricating or sealing, and have won high praise from users.

Semiconductor industry: high-purity, high-resistance semiconductor manufacturing process equipment. Such as wafer clamping rings, wafer carriers, wafer guides, wafer tips, chip pick chucks, vacuum pads, bearings, centering pins, alignment pins, insulators, screws and fasteners, semiconductor insulating sleeves, Plasma torch tip, IC test socket and nest

Automotive industry: Thrust washers or piston rings in transmissions and pumps replace traditional metals

Aerospace industry: Jet engine components such as gaskets, bumpers, seals and bearings

Industrial machinery: Nozzle tip insulators for hot runner nozzles for injection molding thermoplastic products such as PET preforms, PET caps
Polyimide PI in the glass industry. The use of polyimide PI can increase the productivity of manufacturing container glass, glass bottles in the pharmaceutical and cosmetic industries. 

Polyimide PI offers excellent temperature resistance and low thermal conductivity compared to components made of graphite, these high-performance plastics offer key advantages, especially when it comes to hot glass handling. They also help extend component life and increase productivity. Furthermore, polyimide PI material is economical to process, making it a more popular alternative for the production of takeaway inserts and bottle clips.