Goyenchem-GPPS22 General Purpose Polystyrene

application: Extruded polystyrene (XPS) for construction insulation;Polystyrene paper(PSP) for foam plates, bowls and cups.

Description

Characteristics
  1. Extrusion Grade
  2. Low Residual Monomer
  3. Good Heat Resistance
  4. Mold Dimension Stability
  5. Excellent Transparency
  6. Easy Processing
  7. High M.W.
  8. High strength
PRODUCT GRADE IZOD MI APPLICATION
Goyenchem-GPPS22 1.5 2.3
  • Extruded polystyrene (XPS) for construction insulation.
  • Polystyrene paper(PSP) for foam plates, bowls and cups.
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