GPPS (General Purpose Polystyrene)
Grade: Injection moulding, extrusion, medical usage
Usage: CD box, drink cup, egg box, extrusion package materials, medical articles, vegetable box in refrigerator
Specifications:
ItemTest conditionsTest methodTest dataunit
Density ISO 1183: 19871040kg/m3
Water absorption ISO 62: 1999<0.1%
Melt flow rate200° C/5kgISO 1133: 19973.8cm3/10min
Process shrinkage ISO 294-4: 19970.4-0.6%
Charpy impact strength 1eUISO 179: 199315kj/m2
Tensile modulus1mm/minISO 527-2: 19933300MPa
Elongation 50mm/minISO 527-2: 19933%
Tensile strength at break50mm/minISO 527-2: 199355MPa
Ball indentation hardness H358N/30sISO 2039-1: 1993150N/mm2
Bending strength2mm/minISO 178: 1993100MPa
HDT1.8MPaISO 75-2: 199384° C
Linear coefficient of thermal expansion(23-80)° CDIN 53 7520.8-1.0K-1
Heat conduction DIN 52 6120.16W/mK
Vicat softening pointB50/oilISO 306: 199493° C
Flame retardance>1.4mmUL-Standard 9494HBClass
Packing: 25kg pp bags or as your requirement.
| Prosperities |
Test Condition |
Test Method |
Value |
Unit |
| Melting Flow Rate |
200°C/5kg |
ISO 1133 |
5.0 |
g/10min |
| Density |
|
ISO 1183 |
1.04 |
g/cm3 |
| Water Absorption |
|
ISO 62 |
<0.1 |
% |
| Molding Shrinkage |
|
ISO 294 |
0.4-0.7 |
% |
| Tensile Strength |
23°C |
ISO 527 |
23 |
Mpa |
| Tensile Elongation |
23°C |
ISO 527 |
50 |
% |
| Flexural Strength |
23°C |
ISO 178 |
46 |
Mpa |
| Flexural Modulus |
23°C |
ISO 178 |
2260 |
Mpa |
| Izod Impact Strength |
23°C |
ISO 180 |
108 |
j/m |
| Rockwell Hardness |
23°C |
ASTMD-785 |
65 |
L |
| Vicat Softening Temp. |
B10/oil |
ISO 306 |
95 |
°C |
| Heat Distortion Temp. |
1.82Mpa |
ISO 75-2 |
79 |
°C |
| UL Flame Class Rating |
|
UL 94 |
HB |
|
| Residual Monomer |
|
|
<400 |
ppm max |
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