China PMMA Resin Cm-205 /Cm-211, Find details about China PMMA Resin, Polymethyl Methacrylate from PMMA Resin Cm-205 /Cm-211
PMMA Resin(Polymethyl Methacrylate)
1. Introduction
PMMA resin is used methyl methacrylate (MMA) as major raw material to develop successfully. It has excellent weather-resist and heat-resist character, and excellent transparency and gloss. Besides, it has stable physical, chemical, optical, and electrical, etc., characters. It may be widely applied on electronic panel, mechanical parts, watch and clock shell, motorcycle and automobile indicator, tele-communication material, insulation parts and sun glasses, etc.
2. Advantages:
Unparalleled Transparency and Luster
Excellent Weather Resistance
Unmatched Surface Hardness
Excellent Electrical Resistance
Superior Mechanical Property
Harmless to Humans
3. Application:
PMMA is widely used for instruments panel of automobile industry, pharmaceutical industry and other daily-using articles. Specifically, for making optical instrument, illuminating lamp and synthetic glass.
Property item | Test condition | Test method | Test number | units | |
Basic properties | hardness |
| ASTM D-785 | M-95 |
|
Bulk Density |
| ASTM D-1182 | 0.77 | gm/cm 3 | |
Water Absorption |
| ASTM D-570 | 0.3 | % | |
Physical properties | Specific Gravity |
| ASTM D-792 | 1.19 |
|
Light transmission |
| ASTM D-1003 | 92 | % | |
Melt Flow Index |
| ASTM D-1238 | 1.8 | gm/10min | |
Flammability |
|
| 1/16"HB | UL-94 | |
Mould Shrinkage |
| ASTM D-955 | 0.002-0.006 | mm/mm | |
Mechanical properties | Impact Notched IZOD |
| ASTM D-256 | 2.0 | kg-cm/cm |
Tensile Strength |
| ASTM D-638/PSI | 10200/720 | Kg/cm 2 | |
Flexural Strength |
| ASTM D-790/PSI | 15600/1100 | Kg/cm 2 | |
Tensile Elongation |
| ASTM D-638 | 5.0 | % | |
Refractive index |
| ASTM D-542 | 1.491 |
| |
Dielectric strength |
| ASTM D-149 | 500 | Volts/Mil | |
Impact notched IZOD |
| ASTM D-256 | 0.37 | ft-lbs/in 2 | |
| Volume Resistivity |
| ASTM D-257 | 10 15 | Ω.m |
Loss Factor |
| ASTM D-150 | 0.19 |
| |
Dielectric Constant |
| ASTM D-150-647b | 3.7 |
| |
Power Factor |
| ASTM D-150-647 | 0.5 |
| |
Thermal Properties | Heat Distortion Temp |
| ASTM D-648 | 100/212 | °C/°F |
Vicat Softening Point |
| ASTM D-648 | 113/235 | °C/°F |