Product Introduction
A-Pl -350-21 is a 15% graphite-modified polyimide resin with excellent machinability. The performance is good and self-lubricating, and the wear resistance is better than that of basic polyimide resin.The specific performance parameters are shown in the technical sheet.
Product Description
Advantages : High heat resistance, high mechanical strength, low water absorption, extremely high PV, good friction at low value.
Applications : Heat insulation, valve seats, bearings, separation claws, thrust washers piston rings, sealing rings, etc.
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Test items |
Environmental conditions |
Test method /standard |
Uni |
Test Results |
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Forming method H |
Forming method L |
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Color |
/ |
/ |
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Dark green |
Light dark green |
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Rockwell hardness |
23℃,50%RH |
GB/T3398.2-2008 |
HRE |
≥30 |
≥60 (HRL) |
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Unnotched impact strength |
23℃,50%RH |
GB/T1043.1-2008 |
kJ/m² |
≥60 |
≥20 |
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Tensile strength |
23℃,50%RH |
GB/T1040.1-2008 |
MPa |
≥80 |
≥35 |
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Elongation at break |
23℃,50%RH |
GB/T1040.1-2008 |
% |
≥6.0 |
≥3.0 |
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Bending strength |
23℃,50%RH |
GB/T9341-2008 |
MPa |
≥100 |
≥25 |
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Flexural modulus |
23℃,50%RH |
GB/T9341-2008 |
MPa |
≥3800 |
≥2200 |
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Density |
23℃,50%RH |
GB/T1033.1-2008 |
g/cm³ |
1.45 |
1.33 |
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Friction coefficient |
23℃,50%RH |
GB/T3960-2016 |
/ |
0.30 |
/ |
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Wear quality |
23℃,50%RH |
GB/T3960-2016 |
mg |
2.1 |
/ |
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Linear thermal expansion coefficient |
23℃,50%RH |
GB/T1036-2008 |
10-6℃-1 |
50.2 |
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