Alloy polyphenylene sulfide(PPS)
Product features
This kind of product is one of the high performance glass fiber reinforced polyphenylene sulfide(PPS) alloy series products manufactured by our company. It is made by adding PA66, glass fiber and related additives through twin-screw extruder on the basis of PPS resin. By adding PA66, the brittleness of PPS was improved, and the roughness of PPS was increased. Meanwhile, the strength also increases greatly. This kind of product has good mechanical properties, high rigidity, high toughness, high creep resistance, high temperature resistance, chemical corrosion resistance, good electrical insulation properties, arc resistance and other characteristics. It also has good processing performance, suitable for secondary processing, applicable for high rigidity and high toughness requirements for production parts.
Product applications
Because of its outstanding characteristics, it is widely used in aerospace, electronic appliances, machinery, auto railway and other industries. It is used in the production of high performance requirements devices with high rigidity, high toughness, high temperature resistance and insulation. And it can also be applied in making high - strength shell, high - temperature resistance contactor, etc.
Product performance
Test Items |
Unit |
Performance |
Test standard |
Density | g/cm3 | 1.65 | GB/T 1033 |
Molding Shrinkage | % | 0.25/0.75 | GB/T 15585 |
Water Absorption | % | 0.02 | GB/T 2914 |
Tensile Strength | MPa | 200 | GB/T 1040 |
Elongation at break | % | 2.3 | GB/T 1040 |
Bending Strength | MPa | 320 | GB/T 9341 |
Flexural Modulus | MPa | 1.2×104 | GB/T 9341 |
Notched izod impact strength | KJ/m2 | 20 | GB/T 1843 |
Melting Point | ℃ | 270 | GB/T 4608 |
Heat Distortion Temperature/ HDT（1.8Mpa） | ℃ | 255 | GB/T 1634 |
Volume Resistivity ×1015 | Ω.m | 5 | GB/T 1410 |
Surface Resistivity ×1014 | Ω | 5 | GB/T 1410 |
Permittivity 1MHz | / | 4 | GB/T 1409 |
Dielectric Strength | KV/mm | 16 | GB/T 1408 |
Flame Retardant | / | V-1 | GB/T UL94 |
Conditions:
1. Material drying process
Temperature: 130 ~ 150 ℃ *4 hours
Note: if any metal insert molding products, need to preheat insert: metal insert preheating temperature: 130 ~ 140 ℃, time: constant temperature for 1 hour
2. Injection molding process
Mold temperature: 120 ~ 150 ℃ (can be set according to the product structure situation)
Cylinder temperature:
The front: 260 ~ 280 ℃
In the middle: 280 ~ 310 ℃
The last period: 280 ~ 310 ℃
Nozzle: 270 ~ 300 ℃
Injection pressure: 80~150MPa (70-95%)
Injection speed: medium speed ~ high speed.
Pressure holding pressure: 30-70MPa (20-45%)
Meter: the residual amount is set 5-10mm.
Loose back: 3-5 mm
Screw rotation speed: 50-120rpm.
Back pressure: 0.2-5MPa.
Injection molding time: according to the size of the parts, when the mold is filled with mold, and the surface is basically cooling is good.
3. Post-processing technology: determined by the size of the parts.
Processing temperature: 160 ~ 180 ℃, the processing time: 4 ~ 8 hours
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