Goyenchem-GPPS22 General Purpose Polystyrene
application: Extruded polystyrene (XPS) for construction insulation;Polystyrene paper(PSP) for foam plates, bowls and cups.
Description
Characteristics
- Extrusion Grade
- Low Residual Monomer
- Good Heat Resistance
- Mold Dimension Stability
- Excellent Transparency
- Easy Processing
- High M.W.
- High strength
| PRODUCT GRADE | IZOD | MI | APPLICATION |
| Goyenchem-GPPS22 | 1.5 | 2.3 |
|
Physical Property
|
PROPERTY
|
ASTM METHOD
|
UNITS
|
TEST CONDITIONS
|
Goyenchem-GPPS22
|
|
Melt Flow Index
|
D1238
|
g/10min
|
200℃, 5 kg load
|
2.3
|
|
Izod Impact Strength
|
D256
|
kg-cm/cm
|
23℃,A method,notched
1/4”×1/2”×5/2”
|
1.5
|
|
Tensile Strength at Yield
|
D638
|
kg/cm2
|
23℃，1/8” Sample
|
540
|
|
Elongation at Break
|
D638
|
%
|
23℃，1/8” Sample
|
2.0
|
|
Flexural Yield
|
D790
|
kgf/cm2
|
1 kg load, 3mm Thick (120℃/hr)
|
820
|
|
Flexural Modulus
|
D790
|
kgf/cm2
|
1 kg load, 3mm Thick (120℃/hr)
|
38000
|
|
Vicat Softening Temperature
|
D1525
|
℃
|
1 kg load, 3mm Thick (120℃/hr)
|
107
|
|
Heat Distortion Temperature
|
D648
|
℃
|
Unannealed, 1/2 in, 18.56kg/cm2 load pressure
|
92
|
|
Residual SM monomer
|
_
|
ppm
|
_
|
200
|
|
Haze
|
–
|
%
|
2.8mm thick
|
0.35
|
|
Rockwell Hardness
|
D785
|
R-Scale
|
23℃
|
124
|
|
Specific Gravity
|
D792
|
_
|
_
|
1.05
|
Molding Condition
|
PROPERTY
|
UNITS
|
Goyenchem-GPPS22
|
|
Cylinder Temperature
|
℃
|
160-300
|
|
Injection Pressure
|
kgf/cm2
|
500-1400
|
|
Mold Temperature
|
℃
|
35-65
|
