PMMA resin is a mature product that HY Corporation has accumulated more than 30 years of acrylic sheet manufacturing experience, introduced in US continual process, and 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.
Application:
1.Extruded sheets for signage, displays and building material
2.Automotive parts such as tail lamps, meter covers and sun visors
3.General sundries such as tableware, kitchenware, giftware and bathroom accessories
4.Optical lenses such as sunglasses, reading glasses and camera lenses
5.Light guide panels for LCD displays
6.Other applications such as mobile phone display panels, clock covers, lighting covers/accessories, optical fibres, toys, etc
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/cm3 | ||
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/cm2 | ||
Flexural Strength | ASTM D-790/PSI | 15600/1100 | Kg/cm2 | ||
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/in2 | ||
Electrical Properties | Volume Resistivity | ASTM D-257 | 1015 | 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 |