Lexan PC 920A物性
低粘度注射成形，阻燃的PC 。特殊的表面外观。有透明和不透明的颜色
Property
TYPICAL PROPERTIES
MECHANICAL
ValueUnitStandard
Tensile Stress, yld, Type I, 50 mm/min
630
kgf/cm2
ASTM D 638
Tensile Stress, brk, Type I, 50 mm/min
560
Tensile Strain, yld, Type I, 50 mm/min
7
%
Tensile Strain, brk, Type I, 50 mm/min
90
Flexural Stress, yld, 1.3 mm/min, 50 mm span
920
ASTM D 790
Flexural Modulus, 1.3 mm/min, 50 mm span
22800
Hardness, Rockwell M
70
-
ASTM D 785
Hardness, Rockwell R
118
Taber Abrasion, CS-17, 1 kg
10
mg/1000cy
ASTM D 1044
IMPACT
Izod Impact, unnotched, 23°C
326
cm-kgf/cm
ASTM D 4812
Izod Impact, notched, 23°C
65
ASTM D 256
Tensile Impact, Type "S"
535
cm-kgf/cm2
ASTM D 1822
Falling Dart Impact (D 3029), 23°C
1728
cm-kgf
ASTM D 3029
THERMAL
Vicat Softening Temp, Rate B/50
151
°C
ASTM D 1525
HDT, 0.45 MPa, 6.4 mm, unannealed
137
ASTM D 648
HDT, 1.82 MPa, 6.4 mm, unannealed
132
CTE, -40°C to 95°C, flow
6.84E-05
1/°C
ASTM E 831
Thermal Conductivity
0.19
W/m-°C
ASTM C 177
Relative Temp Index, Elec
130
UL 746B
Relative Temp Index, Mech w/impact
120
Relative Temp Index, Mech w/o impact
PHYSICAL
Specific Gravity
1.21
ASTM D 792
Specific Volume
0.83
cm2g
Density
1.217
g/cm2
Water Absorption, 24 hours
0.15
ASTM D 570
Water Absorption, e, 23C
0.35
Water Absorption, e, 100°C
0.58
Mold Shrinkage, flow, 3.2 mm
0.5 - 0.7
SABIC Method
Melt Flow Rate, 300°C/1.2 kgf
14.5
g/10 min
ASTM D 1238
OPTICAL
Light Transmission
85
ASTM D 1003
Haze
1
Refractive Index
1.586
ASTM D 542
ELECTRICAL
Volume Resistivity
>1.E+17
Ohm-cm
ASTM D 257
Dielectric Strength, in air, 3.2 mm
16.7
kV/mm
ASTM D 149
Relative Permittivity, 50/60 Hz
3.01
ASTM D 150
Relative Permittivity, 1 MHz
2.96
Dissipation Factor, 50/60 Hz
0.0009
Dissipation Factor, 1 MHz
0.01
Arc Resistance, Tungsten {PLC}
PLC Code
ASTM D 495
Hot Wire Ignition {PLC)
2
UL 746A
High Voltage Arc Track Rate {PLC}
3
High Ampere Arc Ign, surface {PLC}
Comparative Tracking Index (UL) {PLC}
FLAME CHARACTERISTICS
UL Recognized, 94V-2 Flame Class Rating (3)
1.47
mm
UL 94
UL Recognized, 94V-0 Flame Class Rating (3)
2.99
Radiant Panel Listing
YES
UL Tested
Processing
Parameter
Injection Molding
ValueUnit
Drying Temperature
Drying Time
3 - 4
hrs
Drying Time (Cumulative)
48
Maximum Moisture Content
0.02
Melt Temperature
290 - 310
Nozzle Temperature
280 - 305
Front - Zone 3 Temperature
Middle - Zone 2 Temperature
275 - 300
Rear - Zone 1 Temperature
265 - 290
Mold Temperature
70 - 95
Back Pressure
0.3 - 0.7
MPa
Screw Speed
40 - 70
rpm
Shot to Cylinder Size
40 - 60
Vent Depth
0.025 - 0.076
