PEEK is a linear aromatic semi-crystalline polymers, the use of a temperature of 260 ℃. Flame resistance of PEEK of UL94 by laboratory testing, the test includes the vertical burning rate test and the self-extinguishing time of the test. According PEEK supplier Wicks tables provided
That one did not add any additives 1.45mm spline its combustion rate of V-0 level, which is the highest level of flame retardant . During combustion, smoke and toxic gas emissions are very low. Further, PEEK for chemicals, hot water and hot steam has a very high tolerance
Sex. PEEK can be by conventional techniques such as injection molding, extrusion and compression molding processing.
PEEK is usually blended with other polymers and add fiberglass or carbon fiber, are generally used in automobiles, aircraft, pharmaceuticals, electronics, chemical industry. Currently, there are a lot of auto parts manufactured using PEEK resin, such as: gears, bearings. In the chemical process industry
, Many of the pumps and valves are manufactured using PEEK, oil equipment, semiconductors are often seen PEEK resin figure.
PEI is an amorphous polymer, continuous use temperature of 180 ℃, the hydrocarbons, halogenated solvents, water, automotive fluids, and has a strong resistance, the glass transition temperature of 217 ℃. According to the PEI supplier company data provided by GE, 0.25mm spline fire
The UL 94 flame burning rate detected as V-0 level, and has a low smoke emission, can withstand a variety of chemical substances, has a high strength, modulus and high temperature creep resistance. PEI resins are non-reinforced and enhanced levels of two kinds of levels. Typical fillers are carbon fibers,
Glass fiber and certain minerals. plastic flame retardant
In the manufacture of automotive parts, PEI can replace metal damper, sensors, air regulator, ignition system components and driveline components. PEI flame resistance and low smoke emission and low toxic gas emissions make this material used in aerospace
, Such as gas and fuel valves, steering wheel, interior surfaces, food trays. PEI material using an electronic lighting components such as connectors, is a mirror of the polymer in order to play the advantages of flame retardancy.
PEI can use the standard injection molding processing method for processing, the thickness of the parts obtained can reach 0.25mm. Before processing, PEI should be 140 ℃ ~ 150 ℃ drying for several hours.
PPS is a semi-crystalline polymer, its molecular structure is composed of a sulfur atom and a benzene ring are alternately connected together, the structure of PPS resin gives a higher thermal stability and chemical stability. PPS resin temperature of 200 ℃, in the combustion process of coking tendency that
Conducive to preventing the spread of fire. 1.5mm thick PPS spline retardant level is UL 94 V-0 magnitude. Most PPS resin by adding glass fiber and mineral fillers made parts. PPS has a high modulus, creep resistance, and chemical resistance, precision molding can be performed
Parts require high manufacturing tolerances.
Using PPS, flame resistance and high thermal resistance, in the automotive industry, PPS is usually manufactured parts inside the engine, brake system components, electronic systems require components to withstand high temperatures. In industrial equipment, PPS is often used in high temperature and corrosive chemicals used are environment
. There are also electronic devices require a higher shell to manufacture the PPS, PPS is often used for example in the connector and the socket. In addition, some office equipment, optical devices, and some daily necessities PPS also often used to replace metals and thermosets.
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