SD POLYCA™ 875-20

About
二氧化硅阻燃等级,难燃

Product Description
SupplierSumitomo
GenericPolycarbonate
Material StatusCommercial: Active
AvailabilitysAsia Pacific

Technical Data
PHYSICALNominal valueUnitTest method
Density1.20g/cm³ISO 1183
Water absorption rate
23℃,24hr0.20%ISO 62
Melt Flow Rate
300℃,1.20kg20g/10minISO 1133
Melt Volume Rate
300℃,1.2 kg19cm³/10minISO 1133
Shrinkage rate
MD0.5-0.7%Internal Method
TD0.5-0.7%Internal Method

optical performanceNominal valueUnitTest method
Full light transmittance
2mm%ISO 13468
Haze
2 mm%ISO 14782

MECHANICALNominal valueUnitTest method
Tensile modulus2300MPaISO 527-2
tensile strength
yield60MPaISO 527-2
Tensile strain
fracture80%ISO 527-2
Bending modulus2300MPaISO 178
bending strength94MPaISO 178

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa126ISO 75/Af
Linear coefficient of thermal expansion
MD7.0E-05cm/cm/℃ISO 11359-2
TD7.0E-05cm/cm/℃ISO 11359-2

Electrical performanceNominal valueUnitTest method
Surface resistivity≧1.0E+15IEC 60093
Dielectric strength
1 mm20kV/mmIEC 60243
Relative permittivity
100 Hz,2 mm3.0IEC 60250
1 MHz,2mm3.0IEC 60250
Dissipation factor
2 mm,100 Hz1.0E-03IEC 60250
1 MHz,2 mm9.0E-02IEC 60250
Compared to the leakage tracing index200VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant level
3.00 mmV-0/5VBUL 94
2.50 mmV-0/5VBUL 94
1.50 mmUL 94
1.20 mmUL 94
1.00 mmV-0(0.95mm)UL 94
0.75 mmV-2UL 94

IMPACTNominal valueUnitTest method
Impact strength of simply supported beam, 23 ℃, 4mmt
Gap20kJ/m²ISO 179-1, 2

Process Conditions
Forming conditionsNominal valueUnitTest method
Dry conditions125℃ 4-6hr
Temperature of the rear section of the barrel220-240
Temperature in the middle section of the barrel240-260
Temperature of the front section of the material barrel260-280
Nozzle temperature260-280
Mold temperature70-100
Screw speed60-80rpm

Notes
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