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LEXAN 945聚碳酸酯（PC）树脂是一种非填充，可注塑成型的牌号。这种非氯化，非溴化阻燃PC具有UL-94 V0等级，并提供各种不透明颜色选择.LEXAN 945是一种通用树脂
Property
TYPICAL PROPERTIES (1) MECHANICAL
Value Unit Standard Tensile Stress, yld, Type I, 50 mm/min
630
kgf/cm2
ASTM D 638
Tensile Stress, brk, Type I, 50 mm/min
660
kgf/cm2
ASTM D 638
Tensile Strain, yld, Type I, 50 mm/min
6
%
ASTM D 638
Tensile Strain, brk, Type I, 50 mm/min
125
%
ASTM D 638
Tensile Modulus, 50 mm/min
23200
kgf/cm2
ASTM D 638
Flexural Stress, yld, 1.3 mm/min, 50 mm span
1030
kgf/cm2
ASTM D 790
Flexural Modulus, 1.3 mm/min, 50 mm span
23900
kgf/cm2
ASTM D 790
IMPACT
Value Unit Standard Izod Impact, notched, 23°C
81
cm-kgf/cm
ASTM D 256
Instrumented Impact Total Energy, 23°C
748
cm-kgf
ASTM D 3763
THERMAL
Value Unit Standard Vicat Softening Temp, Rate B/50
143
°C
ASTM D 1525
HDT, 0.45 MPa, 3.2 mm, unannealed
137
°C
ASTM D 648
HDT, 1.82 MPa, 3.2mm, unannealed
126
°C
ASTM D 648
CTE, -40°C to 40°C, flow
6.66E-05
1/°C
ASTM E 831
CTE, -40°C to 40°C, xflow
6.66E-05
1/°C
ASTM E 831
Relative Temp Index, Elec
130
°C
UL 746B
Relative Temp Index, Mech w/impact
120
°C
UL 746B
Relative Temp Index, Mech w/o impact
130
°C
UL 746B
PHYSICAL
Value Unit Standard Specific Gravity
1.19
-
ASTM D 792
Mold Shrinkage, flow, 3.2 mm
0.6 - 0.8
%
SABIC Method
Melt Flow Rate, 300°C/1.2 kgf
10
g/10 min
ASTM D 1238
ELECTRICAL
Value Unit Standard Arc Resistance, Tungsten {PLC}
7
PLC Code
ASTM D 495
Hot Wire Ignition {PLC)
2
PLC Code
UL 746A
High Voltage Arc Track Rate {PLC}
4
PLC Code
UL 746A
High Ampere Arc Ign, surface {PLC}
3
PLC Code
UL 746A
Comparative Tracking Index (UL) {PLC}
2
PLC Code
UL 746A
FLAME CHARACTERISTICS
Value Unit Standard UL Recognized, 94V-2 Flame Class Rating (3)
0.8
mm
UL 94
UL Recognized, 94V-0 Flame Class Rating (3)
1.14
mm
UL 94
UL Recognized, 94-5VA Rating (3)
3.04
mm
UL 94
Glow Wire Flammability Index 960°C, passes at
1
mm
IEC 60695-2-12
Glow Wire Ignitability Temperature, 1.0 mm
875
°C
IEC 60695-2-13
Oxygen Index (LOI)
35
%
ISO 4589
Processing
Parameter Injection Molding
Value Unit Drying Temperature
120
°C
Drying Time
3 - 4
hrs
Drying Time (Cumulative)
48
hrs
Maximum Moisture Content
0.02
%
Melt Temperature
295 - 315
°C
Nozzle Temperature
290 - 310
°C
Front - Zone 3 Temperature
295 - 315
°C
Middle - Zone 2 Temperature
280 - 305
°C
Rear - Zone 1 Temperature
270 - 295
°C
Mold Temperature
70 - 95
°C
Back Pressure
0.3 - 0.7
MPa
Screw Speed
40 - 70
rpm
Shot to Cylinder Size
40 - 60
%
Vent Depth
0.025 - 0.076
mm
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