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Taita Chemical 808

GPPS (Optical Grade Polystyrene) 808 is the Most State of The Art form US NOVA CHEMICAL,Low Residual Monomer and it is used in Diffuser of back light module.

Polymer Name: General Purpose Polystyrene (GPPS)

Melt Flow Index: 1.9 - 1.9 g/10 min

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Identification & Functionality

Chemical Family
Plastics & Elastomers Functions
Technologies

Features & Benefits

Applications & Uses

Plastics & Elastomers End Uses

Properties

Physical Properties
ValueUnitsTest Method / Conditions
Elongation at Break (23°C, 1/8” Sample)2.0%D638
Haze (2.8mm thick)0.35%-
Heat Distortion Temperature (Unannealed, 1/2 in, 18.56 kg/cm2 Load Pressure)95.0°CD648
Izod Impact Strength (23°C, A method, notched 1/4”×1/2”×5/2”)1.6kg-cm/cmD256
Light Transmission (2.8mm thick)92.0%D1003
Melt Flow Index (200°C, 5 kg load)1.9g/10minD1238
Residual SM monomer150.0ppm-
Specific Gravity1.046-D542
Tensile Strength at Yield (23°C,1/8” Sample)560.0kg/cm2D638
Vicat Softening Temperature (1 kg load, 3 mm Thick ,120 °C/hr )108.0°CD1525
Thermal Properties
ValueUnitsTest Method / Conditions
RTI Elec (1.6 mm)50.0-UL 746
RTI Elec (3.2 mm)50.0-UL 746
RTI Imp (1.6 mm)50.0-UL 746
RTI Imp (3.2 mm)50.0-UL 746
RTI Str (1.6 mm)50.0-UL 746
RTI Str (3.2 mm)50.0-UL 746
Electrical Properties
ValueUnitsTest Method / Conditions
Arc ResistancePLC 5-ASTM D495
Comparative Tracking IndexPLC 1-UL 746
High Amp Arc lgnition (1.6 mm)PLC 0-UL 746
High Voltage Arc Tracking RatePLC 0-UL 746
Hot-Wire Ignition (1.6 mm)PLC 4-UL 746
Flammability
ValueUnitsTest Method / Conditions
Flame Rating (1.6 mm, ALL)HB-UL 94
Flame Rating (1.6 mm, ALL)HB 75-IEC 60695-11-10, -20
Flame Rating (3.2 mm, ALL)HB-UL 94
Flame Rating (3.2 mm, ALL)HB 40-IEC 60695-11-10,-20
Injection Molding
ValueUnitsTest Method / Conditions
Back Pressure71 - 213psi(kgf/cm2)-
Drying Temperature80 - 85°C-
Drying Time2.0 - 4.0hr-
Front Zone205 - 235°C-
Melt Zone180 - 190°C-
Middle Zone195 - 225°C-
Mold Temperature35 - 70°C-
Molding PressureModerate to Moderately High--
Molding SpeedModerate to Fast--
Nozzle210 - 240°C-
Rear Zone185 - 210°C-
Screw Speed30 - 120rpm-

Regulatory & Compliance