30% 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 resins through the twin screw extruder. It has good mechanical properties, 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 dimensional stability, radiation resistance,etc. It is especially suitable for high precision parts.
Product applications
Because of the comprehensive performance of this product, it is used in the aerospace industry to produce all kinds of high performance requirements for high temperature and insulation. Production of corrosion resistant valve and insulation devices in chemical industry; In the electronics industry, the production of precision electrical connector, high strength shell, high temperature resistance contactor, etc. In the electrical industry, it is made to produce harsh electric machine parts, terminals, switches; In the machinery industry, the high temperature, the size of the high size requirement shaft sleeve, piston ring.
Product performance
Test Items | Unit | Performance | Test standard |
Density | g/cm3 | 1.56 | GB/T 1033 |
Molding Shrinkage | % | 0.25/0.75 | GB/T 15585 |
Water Absorption | % | 0.02 | GB/T 2914 |
Tensile Strength | MPa | 145 | GB/T 1040 |
Elongation at break | % | 1.6 | GB/T 1040 |
Bending Strength | MPa | 225 | GB/T 9341 |
Flexural Modulus | MPa | 1.1×104 | GB/T 9341 |
Notched izod impact strength | KJ/m2 | 12 | 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 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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