GPPS (General Purpose Polystyrene)
1.Best quality goods
2.competitive price
3.Delivery quickly
4. Free samples
Specification: Injection moulding, extrusion, medical usage
Uasge: CD box, drink cup, egg box, extrusion package materials, medical articles, vegetable box in refrigerator
Item
Test conditions
Test method
Test data
unit
Density
ISO 1183:1987
1040
kg/m3
Water absorption
ISO 62:1999
<0.1
%
Melt flow rate
200°C/5kg
ISO 1133:1997
3.8
cm3/10min
Process shrinkage
ISO 294-4:1997
0.4-0.6
%
Charpy impact strength
1eU
ISO 179:1993
15
kj/m2
Tensile modulus
1mm/min
ISO 527-2:1993
3300
MPa
Elongation
50mm/min
ISO 527-2:1993
3
%
Tensile strength at break
50mm/min
ISO 527-2:1993
55
MPa
Ball indentation hardness H
358N/30s
ISO 2039-1:1993
150
N/mm2
Bending strength
2mm/min
ISO 178:1993
100
MPa
HDT
1.8MPa
ISO 75-2:1993
84
°C
Linear coefficient of thermal expansion
(23-80)°C
DIN 53 752
0.8-1.0
K-1
Heat conduction
DIN 52 612
0.16
W/mK
Vicat softening point
B50/oil
ISO 306:1994
93
°C
Flame retardance
>1.4mm
UL-Standard 94
94HB
Class
Less ...