Polyimide according to series is divided into: one hundred percent pure product PI and PI composite products.
First,PI pure product
100% pure polyimide resin molding, injection molding, extrusion molding, has a very excellent performance in
the PI series, has the highest mechanical properties, and the best electrical and thermal insulation properties,
high temperature, wear (high PV), excellent dimensional stability.
Product applications include: mechanical properties, purity, thermal insulation, and insulation and high friction
coefficient integrated application environment requirements.
typical applications include seat, mold insulator, plasma torch vortex rings, timing gear tensioner, printer paper
separation claw, brakes and other sensors Locator.
Second,PI composite products
(1) PI and PTFE composite products: by adding 15% PTFE polyimide resin molding, improved product wear
resistance, dimensional stability and more.
Typical applications include: high temperature seals, support ring, guide wear rings, piston ring compressor,
heat gear (gear pump and copiers can be used).
(2) PI and graphite composite products (15% by weight graphite): add 15% graphite polyimide resin molded
at high PV conditions have excellent wear resistance.
Product applications include: a variety of rings and seals, all kinds of bearings.
Typical applications include automotive transmissions in the thrust washers, seal rings, piston ring seal, hydraulic
motor seal ring, EGR exhaust gas recycling automotive bushings, turbocharger sleeve cage, miniature dental
sleeve cage, pump and pneumatic tools, blades.
(3) graphite filled PI product (40% graphite by weight): 40% graphite added polyimide resin molding, has a very
low coefficient of linear expansion, low coefficient of friction coefficient. Ideally suited for a wide operating temp-
erature range, and on the part of high dimensional stability requirements of the application environment.
Applications mainly: high pressure seal ring and seals (hydraulic motors, hydraulic booster seal ring).
(4) PI composite products with graphite and PTFE (15% by weight graphite, 10% Teflon):By adding 15% of
graphite and 10% PTFE molded polyimide resin, having a low coefficient of friction, suitable for high speed
Application Main: Piston rings and seals, due to excellent wear resistance and dimensional stability, the sealing
gas having a high reliability.
(5) molybdenum disulfide filled PI composite product (ratio by weight 15% MoS2): 15% by adding molybdenum
disulfide(MoS2) polyimide resin molding, has a very good wear resistance under high vacuum environment
performance and sealing performance.
Product applications include: ultra-high vacuum environment and space applications, such as seat and bayonet
and so on.