KumhoSunny PPO HSP8370

About
HSP8370 is a high heat resistance PS/PPE alloy designed for automobile exterior/interior parts.&&

Product Description
SupplierKumhoSunny
GenericPPO(PPE)+PS
Material StatusCommercial: Active
FeaturesGood flexibility,Low or no water absorption,High Heat Resistance,HB
AvailabilitysAsia Pacific
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.05g/cm³ASTM D792 , ISO 1183
Melt Flow Rate 
220℃,10.0kg20 to 28g/10minASTM D1238
280℃,5.0kg5.0g/10minISO 1133
Shrinkage rate 
MD0.50 to 0.70%ASTM D955
0.40 to 0.70%ISO 294-4

MECHANICALNominal valueUnitTest method
tensile strength 
72.0MPaASTM D638
70.0MPaISO 527-2/50
Tensile strain 
fracture20%ASTM D638
fracture15%ISO 527-2/50
Bending modulus 
2400MPaASTM D790
64 mm2300MPaISO 178
bending strength 
90.0MPaASTM D790
64 mm88.0MPaISO 178

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179
-30℃25kJ/m²ISO 179
23℃15kJ/m²ISO 179
Charpy Unnotch Impact strength ISO 179
-30℃无断裂 ISO 179
23℃无断裂 ISO 179
Impact strength of cantilever beam notch 
3.2mm260J/mASTM D256
-30℃14kJ/m²ISO 180
23℃24kJ/m²ISO 180
Notched impact strength of cantilever beam ISO 180
-30℃无断裂 ISO 180
23℃无断裂 ISO 180

THERMALNominal valueUnitTest method
Hot deformation temperature 
0.45 MPa, unannealed160ISO 75-2/B
1.8 MPa, unannealed151ASTM D648
1.8 MPa, unannealed150ISO 75-2/A
Vicat Softening Temp 
155ASTM D1525 6
B50162ISO 306
Linear coefficient of thermal expansion ISO 11359-2
MD:-40~40℃6.6E-51/℃ISO 11359-2
TD:-40~40℃7.6E-51/℃ISO 11359-2

Electrical performanceNominal valueUnitTest method
Surface resistivity> 1.0E+14ohmsIEC 60093
Volume resistivity> 1.0E+14ohms·cmIEC 60093

FLAME CHARACTERISTICSNominal valueUnitTest method
1.60 mmHB UL 94

Process Conditions
injectionNominal valueUnitTest method
Drying temperature80 to 100°C
Drying time3.0 to 4.0hr
Recommended maximum moisture content< 0.050%
Barrel rear temperature250 to 270°C
Barrel middle temperature280 to 300°C
Barrel front temperature285 to 300°C
Nozzle temperature285 to 300°C
Processing (melt) temperature280°C
Mold temperature80 to 100°C
Back pressure1.00 to 5.00MPa
Screw speed30 to 70rpm

Notes
1. Typical properties: these are not to be construed as specifications.
2. 0.079 in/min
3. 4J
4. 5.5J
5. 120°C/h
6. Rate B (120°C/h)
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