SABIC LEXAN™ OQ3820 PC (Europe)

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SABIC LEXAN™ OQ3820 PC (Europe)
Categories:	Polymer; Thermoplastic; Polycarbonate (PC)
Material Notes:	High Viscosity, UV-stabilized grade for ophthalmic lenses. Information provided by SABIC
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Physical Properties	Original Value	Comments

Specific Gravity	1.19 g/cc	ASTM D792
Density	1.20 g/cc	ISO 1183
Water Absorption	0.32 %	23°C/sat; ISO 62
Moisture Absorption	0.150 %	23°C / 50% RH; ISO 62
Linear Mold Shrinkage, Flow	0.0060 - 0.0080 cm/cm @Thickness 3.20 mm	SABIC method
Linear Mold Shrinkage, Transverse	0.0050 - 0.0070 cm/cm @Thickness 3.20 mm	SABIC method
Melt Flow	6.0 g/10 min @Load 1.20 kg, Temperature 300 °C	cm³/10 min; ISO 1133
	7.4 g/10 min @Load 1.20 kg, Temperature 300 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	71.0 MPa	50 mm/min; ISO 527
	72.0 MPa	50 mm/min; ASTM D638
Tensile Strength, Yield	61.0 MPa	50 mm/min; ISO 527
	62.0 MPa	50 mm/min; ASTM D638
Elongation at Break	125 %	50 mm/min; ASTM D638
	140 %	50 mm/min; ISO 527
Elongation at Yield	6.0 %	50 mm/min; ISO 527
	6.3 %	50 mm/min; ASTM D638
Tensile Modulus	2270 MPa	50 mm/min; ASTM D638
	2400 MPa	1mm/min; ISO 527
Flexural Yield Strength	93.0 MPa	1.3 mm/min, 50 mm span; ASTM D790
	94.0 MPa	2 mm/min; ISO 178
Flexural Modulus	2200 MPa	2 mm/min; ISO 178
	2410 MPa	1.3 mm/min, 50 mm span; ASTM D790
Izod Impact, Notched	918 J/m	ASTM D256
	14.0 J/m @Temperature -30.0 °C	ASTM D256
Izod Impact, Notched (ISO)	70.0 kJ/m²	80103; ISO 180/1A
	12.0 kJ/m² @Temperature -30.0 °C	80103; ISO 180/1A
Izod Impact, Unnotched (ISO)	NB	80103; ISO 180/1U
	NB @Temperature -30.0 °C	80103; ISO 180/1U
Charpy Impact Unnotched	NB	Edgew 80103 sp=62mm; ISO 179/1eU
	NB @Temperature -30.0 °C	Edgew 80103 sp=62mm; ISO 179/1eU
Charpy Impact, Notched	75.0 kJ/m²	Edgew 80103 sp=62mm; ISO 179/1eA
	15.0 kJ/m² @Temperature -30.0 °C	Edgew 80103 sp=62mm; ISO 179/1eA
Dart Drop, Total Energy	85.0 J	ASTM D3763

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	76.0 µm/m-°C @Temperature -40.0 - 40.0 °C	ISO 11359-2
	77.4 µm/m-°C @Temperature -40.0 - 40.0 °C	ASTM E831
CTE, linear, Transverse to Flow	77.4 µm/m-°C @Temperature -40.0 - 40.0 °C	ASTM E831
	78.9 µm/m-°C @Temperature -40.0 - 40.0 °C	ISO 11359-2
Hot Ball Pressure Test	75.0 °C	IEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi)	139 °C @Thickness 3.20 mm	unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	126 °C	1.8 MPa Edgew 120104 sp=100mm; ISO 75/Ae
	129 °C @Thickness 3.20 mm	unannealed; ASTM D648
Vicat Softening Point	143 °C	Rate B/50; ISO 306
	144 °C	Rate B/120; ISO 306
	150 °C	Rate B/50; ASTM D1525

Processing Properties	Original Value	Comments
Nozzle Temperature	305 - 325 °C	Injection Molding
Zone 1	290 - 310 °C
Zone 2	300 - 320 °C
Zone 3	310 - 330 °C
Melt Temperature	310 - 330 °C
Mold Temperature	80.0 - 115 °C
Drying Temperature	120 °C	Injection Molding
Dry Time	3.00 - 4.00 hour	Injection Molding
	48.0 hour	Cumulative; Injection Molding
Moisture Content	0.020 %
Back Pressure	0.300 - 0.700 MPa
Shot Size	40 - 60 %
Vent Depth	0.00250 - 0.00760 cm
Screw Speed	40 - 70 rpm

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PSABI10527 / 243994

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