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Product Description
GPPS granules
GPPS are glossy, transparent particles. Light quality, low price, low water absorption, good coloring, dimensional stability, good electrical properties, transparent products, easy processing.GPPS are soluble in aromatic hydrocarbons, chlorinated
hydrocarbons, aliphatic ketones and esters but can
only swell. It is resistant to some mineral oils, organic acids, bases, salts, lower alcohols and their aqueous solutions.
It has low water absorption and can maintain its mechanical properties and dimensional stability in humid environment. Excellent electrical performance, volume resistance and surface resistance are high, and is not affected by temperature, humidity changes, also not affected by corona discharge. Radiation resistance is also very good.
1.Food packaging.
2.Electrical industrial, instrumentation, communications equipment industry and other various instruments has
been widely used as a shell, lamp, optical parts, equipment parts, transparent windows mirror, transparent model, acid, chemical storage tank,acid tank transport, telecommunications components, high frequency capacitors, high frequency insulation pads,brackets, inserts and frozen insulating materials.
3.All kinds of daily necessities,such as Plastic Cutlery, Toys.
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Item
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Test conditions
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Test method
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Test data
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unit
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Density
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ISO 1183:1987
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1040
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kg/m3
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Water absorption
|
|
ISO 62:1999
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<0.1
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%
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Melt flow rate
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200ˇăC/5kg
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ISO 1133:1997
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3.8
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cm3/10min
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Process shrinkage
|
|
ISO 294-4:1997
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0.4-0.6
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%
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Charpy impact strength
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1eU
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ISO 179:1993
|
15
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kj/m2
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Tensile modulus
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1mm/min
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ISO 527-2:1993
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3300
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MPa
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Elongation
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50mm/min
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ISO 527-2:1993
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3
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%
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Tensile strength at break
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50mm/min
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ISO 527-2:1993
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55
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MPa
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Ball indentation hardness H
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358N/30s
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ISO 2039-1:1993
|
150
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N/mm2
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Bending strength
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2mm/min
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ISO 178:1993
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100
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MPa
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HDT
|
1.8MPa
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ISO 75-2:1993
|
84
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ˇăC
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Linear coefficient of thermal expansion
|
(23-80)ˇăC
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DIN 53 752
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0.8-1.0
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K-1
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Heat conduction
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|
DIN 52 612
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0.16
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W/mK
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Vicat softening point
|
B50/oil
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ISO 306:1994
|
93
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ˇăC
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Flame retardance
|
>1.4mm
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UL-Standard 94
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94HB
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Class
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