INEOS Styrolution 6230/6231 High Impact Polystyrene (HIPS)

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INEOS Styrolution 6230/6231 High Impact Polystyrene (HIPS)
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified
Material Notes:	High Impact polystyrene 6230/6231 is a tough, high gloss product. Features: Single use foodservice, High gloss, Designed for deep draw thermoforming, USP Class VI compliant, UL Classification 94HB. Applications: Single use foodservice, Profile extrusion, Thin wall thermoformed containers, Portion containers, Medical and pharmaceutical packaging, Injection molding Information provided by Styrolution.
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Physical Properties	Original Value	Comments

Bulk Density	37.0 - 40.0 lb/ft³	without external lubricant
	42.0 - 45.0 lb/ft³	with external lubricant
Density	1.04 g/cc	ASTM D 792
Linear Mold Shrinkage	0.0040 - 0.0070 cm/cm	ASTM D 955
Melt Flow	3.5 g/10 min @Load 5.00 kg, Temperature 200 °C	ASTM D 1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell L	57	ASTM D 785
Tensile Strength, Yield	25.9 MPa	ASTM D 638
Elongation at Break	40 %	ASTM D 638
Tensile Modulus	2210 MPa	ASTM D 882
Flexural Yield Strength	45.9 MPa @Strain 5.0 %	ASTM D 790
Flexural Modulus	2070 MPa	ASTM D 790
Izod Impact, Notched	3.80 ft-lb/in @Temperature 23.0 °C	ASTM 256

Electrical Properties	Original Value	Comments
Dielectric Constant	2.5 @Frequency 1e+6 Hz	at 106 CPS. 0.0394; ASTM D 150
Dielectric Strength	400 kV/in	at 1/8"; ASTM D 149

Thermal Properties	Original Value	Comments
CTE, linear	50.0 µin/in-°F	ASTM D 696
Deflection Temperature at 1.8 MPa (264 psi)	90.0 °C	annealed 4 hours at 80°C
Vicat Softening Point	99.0 °C @Load 1.02 kg	B/2 120C/H; ASTM D 1525

Optical Properties	Original Value	Comments
Gloss	85 %	at 60°, specular; ASTM D 523

Processing Properties	Original Value	Comments
Melt Temperature	180 - 274 °C
Mold Temperature	37.8 - 82.0 °C

Compliance Properties	Original Value	Comments
USP Class VI	Yes

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