At present, the market contain halogen flame retardants are likely to have potential harm to environment and human health, but because the coating engineering plastics are widely used in construction industry, flame retardant agent is essential additives. So in order to solve this contradiction, some users to give up the application of engineering plastics plastic additives, to choose those itself has the properties of flame retardant engineering plastics.

Flame retardant polymer mainly includes: polyether ether ketone (PEEK), poly (ether imide) (PEI), polyphenylene sulfide (PPS), polystyrene sulfone (PPSU), polyether sulfone (PES), poly (vinylidene fluoride) (PVDF) and liquid crystal polymer (LCP). Other polymers, such as: PVC, modified polyphenyl ether (PPO) and so on has certain flame retardancy, but you need to add a certain amount of additives to strengthen the performance.

PEI is a kind of amorphous polymers, continuous use temperature of 180 ℃, for hydrocarbons, containing halogen solvent, water and liquid has strong tolerance, its glass transition temperature is 217 ℃.

, according to the PEI GE supplier provide 0.25 mm spline flame burning rate of the UL94 testing for V - level 0, and has lower smoke emissions, that can tolerate a variety of chemicals, has high strength, modulus and high temperature creep resistance. PEI resin level are not strengthened and enhanced level two. Packing has a carbon fiber, glass fiber, and some typical minerals.

In the manufacture of auto parts, PEI can replace metal manufacturing throttle, sensors, air conditioner, ignition system parts and transmission parts. PEI in the flame retardancy, low smoke and low toxic gases also make this kind of material used in aviation aircraft, such as gas and the fuel valve, steering wheel, the decorative surface, food tray, etc.

PEI materials manufacturing electronic lighting components such as connectors, mirror also to play to the advantages of the flame retardant polymer. In addition, PEI can use standard and processing, injection molding processing method of parts made by wall thickness can reach 0.25 mm. Before machining, PEI should be under 140-150 ℃ dry for several hours.

Has the flame retardant polymer usually also have some other excellent properties, such as strength, dimensional stability, chemical resistance and abrasion resistance, etc., but these materials are usually more expensive than those who do not have the flame retardant material, but in high performance and high flame retardancy are required these resin to make will be needed.