阿科玛PMMA VM-100--物理性能
Physical properties rating system of units test method
Density 1.18 g / cm? ISO 1183
Melting rate (melt flow rate) (230 ° C / 3.8 kg) 15 g / 10 minISO 1133
Shrinkage - flow 0.20 to 0.60% ASTM D955
Water absorption (equilibrium, 23 ° C, 50% RH) 0.30% ISO 62
Hardness rating system of units test method
Rockwell hardness (M grade) 89 ASTM d785
Mechanical properties rating system of units test method
Tensile stress (yield, 23 ° C) 65.0 MPa ISO 527-2
Tensile strain (fracture, 23 ° C) 5.0% ISO 527-2
Bending modulus (23 ° C) 3100 MPa ISO 178
Bending stress (23 ° C) 97.0 MPa ISO 178
Compressive stress (23 ° C) 97.0 MPa ISO 604
Test method of impulse performance rating unit system
Notched impact strength of simply supported beam (23 ° C) 2.0 kJ/ M 2 ISO 179 / 2C
Notchless impact strength of simply supported beam (23 ° C) 11kJ / m ² ISO 179 / 2U
Notched impact strength of cantilever beam (23 ° C) 1.8 kJ / m ²ISO 180 / 1A
Thermal performance rating system of units test method
Thermal deformation temperature
0.45 MPa, not annealed 82.0 ° C ISO 75-2 / b
1.8 MPa, not annealed 77.0 ° C ISO 75-2 / A
Vicat softening temperature 90.0 ° C ISO 306 / b
Linear coefficient of thermal expansion flow (- 30 to 23 ° C)7.0e-5 cm / cm / ° C ASTM d696
Specific heat 2090 J / kg / ° C
Electrical performance rating system of units test method
Surface resistivity > 1.0e + 14 ohms ASTM D257
Volume resistivity > 1.0e + 15 ohms · cm ASTM D257
Dielectric strength: 20 kV / mm ASTM d149
Dielectric constant (60 Hz) 3.70 ASTM D150
Dissipation factor (1 MHz) 0.040 ASTM D150
Flammability rating system of units test method
UL flame retardant class HB UL 94
Optical properties - Rating - system of units - Test Method
Refractive index 1.490 ISO 489
Transmittance 92.0% ASTM d1003
Haze 0.50% ASTM d1003
Injection rating unit system
Drying temperature: 80.0 ° C
Drying time 4.0 HR
Processing (melt) temperature 200 ° C
Mold temperature 50.0 to 60.0 ° C
