Superconductivity PPS
Product features
This kind of product is one of the superconductivity modified polyphenylene sulfide (PPS) compounds manufactured by our company, it is made by mixing glass fiber, conductive materials and related additives on the basis of PPS resins. It has superconductivity property, high temperature resistance,creep resistance, chemical corrosion, flame retardant and other characteristics. In addtion, it has good processing performance and low molding shrinkage.
Product applications
Because of its outstanding characteristics of superconductivity property, it is widely used in the automotive, electronics, electrical appliances and chemical industries for making components for superconductivity requirements.
Product performance
Test Items |
Unit |
Performance |
Test standard |
Density | g/cm3 | 1.5 | GB/T 1033 |
Molding Shrinkage | % | 0.25/0.6 | GB/T 15585 |
Water Absorption | % | 0.02 | GB/T 2914 |
Tensile Strength | MPa | 130 | GB/T 1040 |
Elongation at break | % | 1.1 | GB/T 1040 |
Bending Strength | MPa | 200 | GB/T 9341 |
Flexural Modulus | MPa | 1.0×104 | GB/T 9341 |
Notched izod impact strength | KJ/m2 | 8.0 | GB/T 1843 |
Melting Point | ℃ | 278 | GB/T 4608 |
Heat Distortion Temperature/ HDT（1.8Mpa） | ℃ | 260 | GB/T 1634 |
Insulation Resistance | Ω.cm | 5×102 | GB/T 1410 |
Flame Retardant | / | V-0 | 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: 280 ~ 290 ℃
In the middle: 290 ~ 300 ℃
The last period: 300 ~ 310 ℃
Nozzle: 290 ~ 310 ℃
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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