LG Chemical HIPS MI750L PS, Impact Modified

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LG Chemical HIPS MI750L PS, Impact Modified
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified
Material Notes:	Description: Injection Molding, PS, Impact Modified, High Gloss Application: Electric/Electronic Components, Stationary Articles, Food Containers, etc. CAS: 9003-55-8 Information provided by LG Chemical
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Physical Properties	Original Value	Comments

Specific Gravity	1.05 g/cc	ASTM D792
Maximum Moisture Content	0.010	Injection Molding
Linear Mold Shrinkage, Flow	0.0040 - 0.0080 cm/cm @Thickness 3.20 mm	ASTM D955
Melt Flow	4.0 g/10 min @Load 5.00 kg, Temperature 200 °C	ASTM D1238 (G)
	12 g/10 min @Load 3.80 kg, Temperature 230 °C	ASTM D1238 (I)
	51 g/10 min @Load 10.0 kg, Temperature 220 °C	ASTM D1238 (G)

Mechanical Properties	Original Value	Comments
Hardness, Rockwell R	112	ASTM D785
Tensile Strength, Yield	410 kg(f)/cm² @Thickness 3.20 mm	50mm/min; ASTM D638
Elongation at Break	67 % @Thickness 3.20 mm	50mm/min; ASTM D638
Elongation at Yield	5.0 % @Thickness 3.20 mm	50mm/min; ASTM D638
Tensile Modulus	24200 kg(f)/cm² @Thickness 3.20 mm	1mm/min; ASTM D638
Flexural Yield Strength	620 kg(f)/cm² @Thickness 3.20 mm	15mm/min; ASTM D790
Flexural Modulus	29200 kg(f)/cm² @Thickness 3.20 mm	15mm/min; ASTM D790
Izod Impact, Notched	2.00 kg-cm/cm @Thickness 6.40 mm, Temperature -30.0 °C	ASTM D256
	4.00 kg-cm/cm @Thickness 3.20 mm, Temperature -30.0 °C	ASTM D256
	8.00 kg-cm/cm @Thickness 6.40 mm, Temperature 23.0 °C	ASTM D256
	13.0 kg-cm/cm @Thickness 3.20 mm, Temperature 23.0 °C	ASTM D256

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm
Dielectric Strength	40.0 kV/mm
Arc Resistance	120 - 180 sec	ASTM D495
Hot Wire Ignition, HWI	7.0 - 15 sec @Thickness >=1.50 mm
	15 - 30 sec @Thickness >=3.00 mm
High Amp Arc Ignition, HAI	60 - 120 arcs @Thickness 1.50 mm
	>= 120 arcs @Thickness 3.00 mm
High Voltage Arc-Tracking Rate, HVTR	25.4 - 50.0 mm/min

Thermal Properties	Original Value	Comments
Deflection Temperature at 0.46 MPa (66 psi)	91.0 °C @Thickness 6.40 mm	Unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	82.0 °C @Thickness 6.40 mm	Unannealed; ASTM D648
Vicat Softening Point	93.0 °C @Load 5.00 kg	50°C/h; ASTM D1525
UL RTI, Electrical	50.0 °C @Thickness >=1.50 mm
	50.0 °C @Thickness >=3.00 mm
UL RTI, Mechanical with Impact	50.0 °C @Thickness >=1.50 mm
	50.0 °C @Thickness >=3.00 mm
UL RTI, Mechanical without Impact	50.0 °C @Thickness >=1.50 mm
	50.0 °C @Thickness >=3.00 mm
Flammability, UL94	HB @Thickness >=1.50 mm
	HB @Thickness >=3.00 mm

Processing Properties	Original Value	Comments
Rear Barrel Temperature	170 - 190 °C	Injection Molding
Middle Barrel Temperature	180 - 200 °C	Injection Molding
Front Barrel Temperature	190 - 210 °C	Injection Molding
Nozzle Temperature	190 - 220 °C	Injection Molding
Melt Temperature	190 - 220 °C	Injection Molding
Mold Temperature	40.0 - 70.0 °C	Injection Molding
Drying Temperature	80.0 °C	Injection Molding
Dry Time	2.00 - 4.00 hour	Injection Molding
Back Pressure	29.4 - 58.8 MPa	Injection Molding
Screw Speed	30 - 60 rpm	Injection Molding

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