20% glass fiber reinforced PPS
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.
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.
Elongation at break
Notched izod impact strength
Heat Distortion Temperature/ HDT（1.8MPa）
Volume Resistivity ×1015
Surface Resistivity ×1014
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)
In the middle：300~320℃
The last period：310~330℃
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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