Kumho-Sunny HSP8340 PS/PPO

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Kumho-Sunny HSP8340 PS/PPO
Categories:	Polymer; Thermoplastic; Polyphenylene Ether/PPO; Polystyrene (PS)
Material Notes:	HSP8340 is general purpose PS/PPO resin. HSP8340 has excellent creep performance in low and high temperature, low water absorption and high shape resistance property. HSP8340 is mainly used in electron & electric parts, OA appliance, etc. Information provided by Shanghai Kumho Sunny Plastics co, Ltd
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Physical Properties	Metric	English	Comments

Density	1.04 g/cc	0.0376 lb/in³	ASTM D792
Maximum Moisture Content	0.10	0.10
Linear Mold Shrinkage	0.0050 - 0.0070 cm/cm	0.0050 - 0.0070 in/in	ASTM D955
Melt Flow	12 - 16 g/10 min @Load 10.0 kg, Temperature 220 °C	12 - 16 g/10 min @Load 22.0 lb, Temperature 428 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Tensile Strength	50.0 MPa	7250 psi	ASTM D638
Elongation at Break	50 %	50 %	ASTM D638
Flexural Strength	63.0 MPa	9140 psi	ASTM D790
Flexural Modulus	2.00 GPa	290 ksi	ASTM D790
Izod Impact, Notched	4.25 J/cm @Thickness 3.20 mm	7.96 ft-lb/in @Thickness 0.126 in	ASTM D256

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+14 ohm-cm	>= 1.00e+14 ohm-cm	IEC 60093
Surface Resistance	>= 1.00e+14 ohm	>= 1.00e+14 ohm	IEC 60093

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	113 °C	235 °F	ASTM D648
Vicat Softening Point	126 °C	259 °F	B; ASTM D1525
Flammability, UL94	HB @Thickness 1.60 mm	HB @Thickness 0.0630 in

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	230 - 240 °C	446 - 464 °F
Middle Barrel Temperature	250 - 260 °C	482 - 500 °F
Front Barrel Temperature	260 - 270 °C	500 - 518 °F
Nozzle Temperature	255 - 265 °C	491 - 509 °F
Melt Temperature	230 - 270 °C	446 - 518 °F
Mold Temperature	50.0 - 80.0 °C	122 - 176 °F
Drying Temperature	90.0 - 110 °C	194 - 230 °F
Dry Time	3.00 - 6.00 hour	3.00 - 6.00 hour
Back Pressure	0.200 - 0.800 MPa	29.0 - 116 psi
Screw Speed	20 - 100 rpm	20 - 100 rpm

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PKMSN159 / 281011

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