Pi Tube Supply Pi Tube Supply Pi Tube Supply
Product Description
PI, commonly known as Polyimide in Chinese, is an aromatic heterocyclic polymer compound with a molecular structure containing imide chains, the English name Polyimide(PI), which can be divided into four categories: homobenzoic PI, soluble PI, polyamide-imide (PAI) and polyetherimide (PEI).
PI sheet size: 5-80*300*300MM
PI bar specification: 6.3-82.5*960MM
PI plastic raw materials introduction
PI plastic raw materials are currently one of the best varieties of heat resistance in engineering plastics, some varieties can withstand the high temperature of 290 ° C for a short time to withstand the high temperature of 490 ° C, in addition to mechanical properties, fatigue resistance, flame resistance, dimensional stability, electrical properties are good, small molding shrinkage, oil resistance, general acid and organic solvents, alkali resistance, has excellent friction resistance, wear performance.
PI plastic raw material characteristics
1, mechanical properties, good fatigue resistance, good self-lubrication; The tensile strength of the homobenzene-type polyimide film can reach 170 MPa, and the biphenyl type can reach 400MPa
2, wear resistance, small friction coefficient and not affected by humidity, temperature, high impact strength, but sensitive to the gap.
3, excellent heat resistance, can be used in -260 (not brittle) ~ 330oC for a long time, thermal deformation temperature up to 343oC.
4, good radiation resistance, no cold flow, no cracking, excellent electrical insulation, flame retardant.
5, shrinkage, linear expansion coefficient is small, good dimensional stability, low water absorption.
6, good chemical stability, ozone resistance, bacterial corrosion resistance, good solubility, but vulnerable to alkali, pyridine and other erosion
PI plastic raw material application field
PI materials are used in aviation, automotive, electronic appliances, industrial machinery, etc., can be used as engine fuel supply system parts, jet engine components, compressor and generator parts, fasteners, splines and electronic connectors, and can also be used as automotive engine parts, bearings, piston sleeves, timing gear, etc. In the electronic industry, we do printed circuit boards, insulation materials, heat-resistant cables, terminals, sockets, and in the mechanical industry, we do high-temperature self-lubricating bearings, compressor blades and piston machines, sealing rings, equipment heat shields, thrust washers, bushings and so on. High temperature self-lubricating bearings, compressor piston rings, tobacco machinery parts, printer automation parts, jaw, gasket, casing and other fields.
