Ineos Nova 3900 General Purpose Crystal Polystyrene

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Ineos Nova 3900 General Purpose Crystal Polystyrene (discontinued **)
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Transparent Grade
Material Notes:	High flow, Good compounding Applications: Color concentrates, Compounding, Thin wall moldings Exposure to gamma radiation in the 2.02-6.06 megarad range has no significant effect on the physical and optical properties of the material. Properties were determined on injection molded specimens at 23°C and 50% R.H. unless otherwise specified. Information provided by NOVA Chemicals. INEOS NOVA began October 1 2007 as an expansion of the 50:50 joint venture between NOVA Chemicals and INEOS to include North American assets.
Key Words:	GPPS
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Physical Properties	Original Value	Comments

Density	1.04 g/cc	ASTM D792
Linear Mold Shrinkage	0.0040 - 0.0070 cm/cm	ASTM D955
Melt Flow	38 g/10 min	Condition G

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	75
Tensile Strength, Yield	34.0 MPa	ASTM D638
Elongation at Break	2.0 %	ASTM D638
Flexural Yield Strength	48.0 MPa	ASTM D790
Flexural Modulus	3.006 GPa	ASTM D790
Izod Impact, Notched	0.200 J/cm @Diameter 3.17 mm	bar, 0.010" notch radius; ASTM D256

Electrical Properties	Original Value	Comments
Dielectric Constant	2.59 @Frequency 1e+6 Hz
Dielectric Strength	500 kV/in @Thickness 3.17 mm

Thermal Properties	Original Value	Comments
Deflection Temperature at 1.8 MPa (264 psi)	68.0 °C	ASTM D648
Vicat Softening Point	84.0 °C	ASTM D1525
Flammability, UL94	HB

Optical Properties	Original Value	Comments
Refractive Index	1.59 @Wavelength 589.3 nm	sodium D line
Optical Density	0.046	400-700 mm avg.
Transmission, Visible	88 - 90 %	at 550 mm

Processing Properties	Original Value	Comments
Melt Temperature	190 - 274 °C
Mold Temperature	38.0 - 82.0 °C

**
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