40% glass fiber reinforced PPS
Product features
This kind of product is one of the high cost performance enhanced polyphenylene sulfide series products manufactured by our company. It is made by mixing the glass fiber and related additives through the double screw extruder. It has good mechanical properties, high rigidity, high resistance to creep, high temperature resistance, flame retardant, chemical resistance, excellent electrical insulation, good arc resistance and so on.
Product applications
This kind of product is widely used in automobile, electronic appliance, chemical equipment, machinery, spinning machine and other industries, making motor parts, terminals; Production of vaporizers, dispenser, igniter, sliding block, brake system solenoid valve, gear, thermosensitive couple, piston ring for high temperature and size precision requirements; Production of high-end hot air duct, curling iron, hair perm, coffee pot; Making anti-corrosion devices, corrosion resistant valves, insulation devices, etc. Production of precision electrical connector, high strength shell, high temperature resistant contactor, etc.
Product performance
| Test Items | Unit | Performance | Test Standard |
Density | g/cm3 | 1.66 | GB/T 1033 |
Molding Shrinkage | % | 0.25/0.75 | GB/T 15585 |
Water Absorption | % | 0.02 | GB/T 2914 |
Tensile Strength | MPa | 180 | GB/T 1040 |
Elongation at break | % | 1.6 | GB/T 1040 |
Bending Strength | MPa | 270 | GB/T 9341 |
Flexural Modulus | MPa | 1.3×104 | GB/T 9341 |
Notched izod impact strength | KJ/m2 | 14 | GB/T 1843 |
Melting Point | ℃ | 280 | GB/T 4608 |
Heat Distortion Temperature/ HDT（1.8Mpa） | ℃ | 262 | 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-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：290~300℃
In the middle：300~320℃
The last period：310~330℃
Nozzle：310~330℃
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 basiclally 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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