GPPS (General Purpose Polystyrene) 1.Best quality goods 2.competitive price 3.Delivery quickly 4. Free ...    More ...

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

 

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