Total Polystyrene Impact 8260 Improved Environmental Stress Crack Resistance High Impact Polystyrene

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Total Polystyrene Impact 8260 Improved Environmental Stress Crack Resistance High Impact Polystyrene
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified
Material Notes:	POLYSTYRENE IMPACT 8260 is a high impact polystyrene for extrusion and injection applications. This grade has an improved environmental stress crack resistance in comparison with standard high impact grades. The product has been specifically designed for the production of refrigerator part: inner liners, door liners. injected parts etc. This grade is also proposed for the production of packaging intended for products likely to cause stress cracking e.g. fats, oil... POLYSTYRENE IMPACT 8260 retains good mechanical properties at low temperatures making this grade suitable for frozen packaging; it also affords good printing performance. Applications Sheet for thermoforming, fridge liners, low temperature packaging applications (ice cream boxes and lids), packaging for aggressive foodstuffs, matte finish, soft touch. Information provided by Total Petrochemicals.
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Physical Properties	Original Value	Comments

Specific Gravity	1.04 g/cc	ISO 1183
Water Absorption	<= 0.10 %	ISO 62
Linear Mold Shrinkage	0.0040 - 0.0070 cm/cm
Melt Flow	2.8 g/10 min @Load 5.00 kg, Temperature 200 °C	ISO 1133 H

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	25.0 MPa	ISO 527-2
Tensile Strength, Yield	20.0 MPa	ISO 527-2
Elongation at Break	>= 60 %	ISO 527-2
Tensile Modulus	1600 MPa	ISO 527-2
Flexural Modulus	1600 MPa	ISO 178
Izod Impact, Notched (ISO)	11.0 kJ/m²	ISO 180/1A
Charpy Impact, Notched	11.0 kJ/m²	ISO 179/1eA

Electrical Properties	Original Value	Comments
Surface Resistance	>= 1.00e+13 ohm	ISO IEC 93
Dielectric Strength	150 kV/mm

Thermal Properties	Original Value	Comments
CTE, linear	91.0 µm/m-°C
Vicat Softening Point	90.0 °C @Load 5.10 kg	50°C per hour; ISO 306B50
	99.0 °C @Load 1.02 kg	50°C per hour; ISO 306A50

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