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**奇美PMMA CM-205 英文物性表
| Physical |
Nominal Value
|
Unit
|
Test Method
|
|
Specific Gravity
|
1.19
|
g/cm³
|
ASTM D792 |
|
Apparent Density
|
0.70
|
g/cm³
|
ASTM D1182 |
|
Melt Mass-Flow Rate (MFR) (230°C/3.8 kg)
|
1.8
|
g/10 min
|
ASTM D1238 |
|
Molding Shrinkage - Flow
|
0.020 to 0.060
|
%
|
ASTM D955 |
|
Water Absorption (Equilibrium)
|
0.30
|
%
|
ASTM D570 |
| Mechanical |
Nominal Value
|
Unit
|
Test Method
|
|
Tensile Strength 2 (Yield, 3.18 mm)
|
70.3
|
MPa
|
ASTM D638 |
|
Tensile Elongation 2 (Break, 3.18 mm)
|
5.0
|
%
|
ASTM D638 |
|
Flexural Strength 3 (6.35 mm)
|
108
|
MPa
|
ASTM D790 |
| Impact |
Nominal Value
|
Unit
|
Test Method
|
|
Notched Izod Impact (23°C, 6.35 mm)
|
20
|
J/m
|
ASTM D256 |
| Hardness |
Nominal Value
|
Unit
|
Test Method
|
|
Rockwell Hardness (M-Scale, 6.35 mm)
|
95
|
ASTM D785 | |
| Thermal |
Nominal Value
|
Unit
|
Test Method
|
|
Deflection Temperature Under Load (1.8 MPa, Unannealed, 6.35 mm)
|
100
|
°C
|
ASTM D648 |
|
Vicat Softening Temperature
|
113
|
°C
|
ASTM D1525 4 |
| Electrical |
Nominal Value
|
Unit
|
Test Method
|
|
Volume Resistivity
|
1.0E+15
|
ohm·cm
|
ASTM D257 |
|
Dielectric Strength
|
20
|
kV/mm
|
ASTM D149 |
|
Dielectric Constant
|
3.70
|
ASTM D150 | |
|
Dissipation Factor
|
0.19
|
ASTM D150 | |
|
Power Factor
|
0.500
|
ASTM D150 | |
| Flammability |
Nominal Value
|
Unit
|
Test Method
|
|
Flame Rating (1.59 mm)
|
HB
|
UL 94 | |
| Optical |
Nominal Value
|
Unit
|
Test Method
|
|
Refractive Index
|
1.491
|
ASTM D542 | |
|
Transmittance (3180 µm)
|
92.0
|
%
|
ASTM D1003 |