Toughing & reinforced PPS compound which is filled with glass fiber or/and mineral on the basis of PPS-hx resin.

Characteristic

PPS-hxGR42 is toughing & reinforced PPS compound which is filled with glass fiber on the basis of PPS-hx. While PPS-hxMR62 is filled with glass fiber and mineral on the basis of PPS-hx. It shows excellent mechanical properties, high impact strength, high-temperature resistance, solvent resistance, good electrical insulation properties, arc resistance, low water absorption, low mold shrinkage, good dimensional stability and radiation resistance. Its colour is offwhite.

Applications

Owing to its high performance, it can be used to make appliances where impact resistance is required in automobile, mechanical, electrical and chemical industry.

Properties

Remark: The statistics above are typical value, not be proved as receiving inspection standard.

Processing Conditions

Suitable for injection molding. PPS is highly crystallization polymer. Therefore, in molding process, stress concentration, which brought on by rotation angle and changes of wall thickness, should be considered. Injection molding technology references are as follows:

1. Pre Drying:

Temperature: 110~140 ^oC

Time: 3~5hr

1.1 metal inserts should be preheated.

Temperature: 130~140 ^oC

Time: 1hr (constant temperature)

1.2 natural colored compounds should be pre-dried in the same condition in order to get the even colour after molding.

2. Injection:

Mold: 100~150 degree centigrade

Cylinder: Zone 1: 270~290 ^oC

              Zone 2: 300~320 ^oC

              Zone 3: 300~320 ^oC

              Nozzle: 290~320 ^oC

Injection pressure: 50~100MPa

Injection speed: Medium speed. In order to get a nice-quality appearance, it allows a high speed. Yet please avoid some defects like warp and scorch.

Back pressure: 0.1~1.0MPa

Screw speed: 40~100 r/min

Injection time: Depend on the sizes of articles

3. Post processing: Depend on the sizes of articles

Processing temperature: 160 ^oC

Processing time: 2~8hr