PPS can be divided into five categories by use：1. Coating, 2, modification, 3, fiber, 4, film, 5, extrusion. Domestic fiber grade development is better, large amount of modified materials import tens of thousands of tons every year, the main gap is: synthesis of PPS pure resin grade dozens, linear and cross chain structure mixed. The molecular weight distribution is narrow and the molecular weight is about 70000.
PPSThe second most suitable brand for modification：One is glass fiber 40, the other is high filling. The former one can produce two tons of modified materials per ton of PPS, and the latter can produce three tons.
An auto parts enterprise said：
Do automobile engine accessories, insulation temperature resistance, often use PPS, automotive PPS is mainly engine parts, there are hundreds of parts on the car with PPS modified material. With domestic materials certification cycle is long, but there is value to do, after all, nearly half of the production of PPS is used for automobiles.
Ignition and electrical
Exhaust control valve
Ignition coil shell, winding tube
Nozzle winding tube
Transistor igniter housing
Hydraulic piston of ABS system
Rectifier terminal block
Transmission hydraulic piston
Brush holder of alternator
Transformer parts of hybrid electric vehicle
Air conditioning unit pipe clamp
Headlamp reflector (projection type)
ECU control unit housing (engine, power steering wheel...)
Electromagnetic valve body
Fuel, suction flow meter
Temperature regulator parts
Fuel pump impeller, casing
Cooling water pump impeller and shell
Radiator water supply pipe and drain pipe
What are the main modified PPS in the world？
Dongli is mainly Japan;
DIC Malaysia and Japan;
Solvay was mainly Belgium;
Celanese is the United States;
For modified plastic grade PPS, the domestic PPS synthesis technology has broken through and the quality is very good. The era of foreign monopoly has passed, and the advantages of PPS abroad have gradually disappeared. There is no need to worship foreigners so much. The follow-up localization substitution must be a major trend, and the localization substitution must be only a matter of time, and the later localization will be just like the present PP materials;
People said that the localization of medium and high-end modified plastics, especially modified PPS, is an inevitable trend; with the rapid progress of domestic synthesis technology and modification technology, and the cost has a great advantage, the modified enterprises will make some more investment in the relevant certification and replace the imported materials in the near future. Suzhou ruikena New Material Technology Co., Ltd. said that the performance indicators of the current ppa-gf40 products have reached the performance of imported brands, the domestic PPS has achieved a breakthrough, and the wear-resistant special grade PPS has further development.
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