Goyenchem-GPPS20 General Purpose Polystyrene
application: Diffuser of LCD monitor’s back light module
Description
Characteristics
- Optical Grade
- Low Residual Monomer
- Good Heat Resistance
- Mold Dimension Stability
- Excellent Transparency
- Easy Processing
- Good water resistance
- Extensive Application
|
PRODUCT GRADE
|
IZOD
|
MI
|
APPLICATION
|
|
Goyenchem-GPPS20
|
1.6
|
1.9
|
Diffuser of LCD monitor’s back light module
|
Physical Property
|
PROPERTY
|
ASTM METHOD
|
UNITS
|
TEST CONDITIONS
|
Goyenchem-GPPS20
|
|
Melt Flow Index
|
D1238
|
g/10min
|
200℃, 5 kg load
|
1.9
|
|
Izod Impact Strength
|
D256
|
kg-cm/cm
|
23℃,A method,notched
1/4”×1/2”×5/2”
|
1.6
|
|
Tensile Strength at Yield
|
D638
|
kg/cm2
|
23℃，1/8” Sample
|
560
|
|
Elongation at Break
|
D638
|
%
|
23℃，1/8” Sample
|
2.0
|
|
Flexural Yield
|
D790
|
kgf/cm2
|
1 kg load, 3mm Thick (120℃/hr)
|
850
|
|
Flexural Modulus
|
D790
|
kgf/cm2
|
1 kg load, 3mm Thick (120℃/hr)
|
39000
|
|
Vicat Softening Temperature
|
D1525
|
℃
|
1 kg load, 3mm Thick (120℃/hr)
|
108
|
|
Heat Distortion Temperature
|
D648
|
℃
|
Unannealed, 1/2 in, 18.56kg/cm2 load pressure
|
95
|
|
Residual SM monomer
|
_
|
ppm
|
_
|
150
|
|
Haze
|
–
|
%
|
2.8mm thick
|
0.35
|
|
Rockwell Hardness
|
D785
|
R-Scale
|
23℃
|
124
|
|
Specific Gravity
|
D792
|
_
|
_
|
1.05
|
Molding Condition
|
PROPERTY
|
UNITS
|
Goyenchem-GPPS20
|
|
Cylinder Temperature
|
℃
|
160-300
|
|
Injection Pressure
|
kgf/cm2
|
500-1400
|
|
Mold Temperature
|
℃
|
35-65
|
