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Total Polystyrene Impact 6540 Easy Flow Impact Polystyrene
Categories: Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified

Material Notes: POLYSTYRENE IMPACT 6540 is an easy flowing, high impact polystyrene with a good balance of mechanical and thermal properties. This resin combines physical properties such as the flow necessary for large or complex moldings, the impact resistance for good mechanical properties in thin wall sections and good thermal properties for articles subjected to elevated temperatures in use. The combination of properties also offers high productivity.

Applications POLYSTYRENE IMPACT 6540 satisfies the requirements of a wide range of molding applications. Toys, television housing, food packaging, refrigerator, computer keyboards, office equipment, household items...

Information provided by Total Petrochemicals.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.04 g/ccISO 1183
Water Absorption <= 0.10 %ISO 62
Linear Mold Shrinkage 0.0040 - 0.0070 cm/cm
Melt Flow 11.5 g/10 min
@Load 5.00 kg,
Temperature 200 °C
ISO 1133 H
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell R 78ISO 2039-2
Tensile Strength at Break 20.0 MPaISO 527-2
Tensile Strength, Yield 25.0 MPaISO 527-2
Elongation at Break >= 45 %ISO 527-2
Flexural Modulus 2100 MPaISO 178
Izod Impact, Notched (ISO) 9.50 kJ/m²ISO 180/1A
 
Electrical PropertiesOriginal ValueComments
Surface Resistance >= 1.00e+13 ohmISO IEC 93
Dielectric Strength 150 kV/mm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 91.0 µm/m-°C
Deflection Temperature at 1.8 MPa (264 psi) 68.0 °Cunannealed; ISO 75-2A
 80.0 °Cannealed; ISO 75-2A
Vicat Softening Point 83.0 °C
@Load 5.10 kg
50°C per hour; ISO 306B50
 92.0 °C
@Load 1.02 kg
50°C per hour; ISO 306A50

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