Composite filling enhanced PPS
Product features
This kind of product is one of the high performance polyphenylene sulfide (PPS) compounds manufactured by our company, it is made by mixing glass fiber and inorganic filler on the basis of PPS resins, the comprehensive performance is good, it has high rigidity and high temperature creep resistance and high hardness, low molding shrinkage rate, high temperature resistance, flame retardant, good electrical insulation performance, processing performance, good dimensional stability and other characteristics. In addition, products of this brand have a high cost performance.
Product applications
Because of its outstanding characteristics and performance, it is widely used in the automotive, electronics, electrical appliances, electrical appliances, machinery, railway, aviation and military industry fields, making auto lamp holder, lamp bowl, connector, connectors, high temperature resistantance appliances shell, nut, bolt, electric contact plate and other products.
Product performance
Test Items |
Unit |
Performance |
Test standard |
Density | g/cm3 | 1.98 | GB/T 1033 |
Molding Shrinkage | % | 0.25/0.5 | GB/T 15585 |
Water Absorption | % | 0.02 | GB/T 2914 |
Tensile Strength | MPa | 130 | GB/T 1040 |
Elongation at break | % | 0.8 | GB/T 1040 |
Bending Strength | MPa | 210 | GB/T 9341 |
Flexural Modulus | MPa | 1.6×104 | GB/T 9341 |
Notched izod impact strength | KJ/m2 | 7.5 | GB/T 1843 |
Melting Point | ℃ | 282 | GB/T 4608 |
Heat Distortion Temperature/ HDT（1.8Mpa） | ℃ | 265 | 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 | 15 | 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 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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