20% glass fiber reinforced PPS
Product features
This kind of product is one of the high performance enhanced polyphenylene sulfide (PPS) compounds series products manufactured by our company. It is made by mixing the glass fiber and related additives on the basis of PPS regins through the twin screw extruder. It has good mechanical properties, high rigidity, high resistance to creep, high temperature resistance, flame retardant, chemical corrosion resistance, excellent electrical insulation, good arc resistance, good processing performance, low molding shrinkage, good radiation, good dimensional stability and so on. It is especially suitable for processing thin-walled parts.
Product applications
Due to the outstanding features of this product, it is widely used in electronics and electronics industry, making connectors, connectors, frequency dividers and components and shells of various instruments and instruments; In the aerospace industry, high strength, high temperature, insulation and various high performance requirements are made. The production of precision electrical connector, high strength shell, high temperature resistance contactor, etc.
Product performance
Test Items | Unit | Performance | TeST Standard |
Density | g/cm3 | 1.50 | GB/T 1033 |
Molding Shrinkage | % | 0.25/0.80 | GB/T 15585 |
Water Absorption | % | 0.02 | GB/T 2914 |
Tensile Strength | MPa | 115 | GB/T 1040 |
Elongation at break | % | 1.8 | GB/T 1040 |
Bending Strength | MPa | 180 | GB/T 9341 |
Flexural Modulus | MPa | 1.0×104 | GB/T 9341 |
Notched izod impact strength | KJ/m2 | 8 | GB/T 1843 |
Melting Point | ℃ | 280 | GB/T 4608 |
Heat Distortion Temperature/ HDT（1.8MPa） | ℃ | 260 | 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 | 18 | 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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