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PPS properties and application

Publish:2015-6-12 15:17:19

Polyphenylene sulfide(PPS) is an organic polymer consisting of aromatic rings linked with sulfides.Molecular structure is symmetrical, easy to crystallization, nonpolar, good electric properties, not bibulous.Outstanding performance of PPS,such as good heat resistance, can be used in 180 ~ 220 ℃ temperature range.Corrosion resistance is close to ptfe;Excellent performance;Mechanical performance;Very good flame retardant performance.


Sunny’s PPS special performance:
1),General performance:PPS as a white appearance, high crystallinity, hard and brittle polymers, pure PPS relative density is 1.3, but will increase after modification.PPS bibulous rate is very small, usually only 0.03%.PPS have good flame retardance, the oxygen index up to more than 44%;Compared with other plastics, it belongs to high flame retardant materials in plastic (pure oxygen index of PVC is 47%, PSF is 47%, PA66 is 29%, MPPO is 29%, PC is 25%).
2),Mechanical performance:pure PPS impact strength is 27J/m,sunny PPS can be up to 76J/m,high tensile strength137Mpa ,high flexural modulus 12.6Gpa.
3),Thermal performance:PPS is one of the most important high temperature thermoplastic polymers,short term resistant to 260 ℃, and can long time under 200 ~ 240 ℃.
4),Electrical performance:PPS's performance is very outstanding, compared with other engineering plastics, the dielectric constant and dielectric loss tangent values are relatively low, and in the larger frequency, temperature and temperature range changed little;PPS arc resistance is good, can be comparable to thermosetting plastic.PPS is often used for electrical insulation material, its dosage can account for about 30%.
5),Environmental performance: resistance to heat, acids and alkalies, and to mildew, to bleaches, aging, It absorbs only small amounts of solvents and resists dyeing.

 


PPS application:
1),Automobile industry: exhaust recirculation valve,pump impeller,carburetor, exhaust device, exhaust valve, light reflector, bearing, sensor components, etc.


2),Machinery industry: bearing, gear pump, valve, piston, precision, copier, camera, computer parts, pipe, spray, spray nozzle, instrument parts, etc.


3),Chemical industry: acid and alkali resistant valve pipe, pipe fittings, valves, gaskets, submersible pump or impeller corrosion resistant parts, etc.


4),Household appliances: hot hair dryers, hair curler, hair dryer, hair curler, microwave oven, coffee pot, dryer, electric iron, rice cooker and other protective coating and spare parts.


5),Electronic appliances:miniature electronic components encapsulation, connectors, switches, sockets, coil skeleton, motor shell, high frequency electromagnetic adjusting plate, TV head shaft, relay, fine-tuning capacitor, fuse holder, tape recorder, magnetic therapeutic appliances and other parts

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