INEOS Styrolution NAS® 21 Styrene Methyl Methacrylate (SMMA)

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INEOS Styrolution NAS® 21 Styrene Methyl Methacrylate (SMMA)
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Styrene/Methyl Methacrylate Copolymer (SMMA)
Material Notes:	NAS® 21 is a styrene acrylic copolymer that can be used in a variety of applications demanding a strong, stiff water-clear plastic resin with excellent thermal stability. Sparkling clarity, Low density, Ease of processing, Gamma & ETO sterilizable, Meets USP XXIII specifications for Class VI plastics, UL 94 HB approved Information provided by Styrolution.
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Physical Properties	Original Value	Comments

Density	1.08 g/cc	ISO 1183
Moisture Absorption at Equilibrium	0.10 % @Temperature 23.0 °C	50% RH; ISO 62
Linear Mold Shrinkage	0.0020 - 0.0060 cm/cm	ISO 294-4
Melt Flow	24 g/10 min @Load 10.0 kg, Temperature 220 °C	Volumetric; cm3/10 min; ISO 1133

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	70
Ball Indentation Hardness	168 MPa	ISO 2039-1
Tensile Strength, Yield	60.0 MPa	ISO 527
Elongation at Break	2.5 %	ISO 527
Tensile Modulus	3300 MPa	ISO 527
Flexural Strength	100 MPa	ISO 178
Flexural Modulus	3400 MPa	ISO 178
Izod Impact, Notched (ISO)	12.0 kJ/m²	ISO 180
	2.50 kJ/m² @Temperature 23.0 °C	ISO 180/A
Charpy Impact Unnotched	12.0 kJ/m² @Temperature 23.0 °C	ISO 179/1eU
Charpy Impact, Notched	1.50 kJ/m² @Temperature 23.0 °C	ISO 179/1eA

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	260 °C
Deflection Temperature at 0.46 MPa (66 psi)	90.0 °C	annealed 4 hours at 80°C; ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	80.0 °C	annealed 4 hours at 80°C; ISO 75
Vicat Softening Point	98.0 °C @Load 5.10 kg	VST/B/50. 50C/h; ISO 306
	105 °C @Load 1.02 kg	B/2 120C/H; ASTM D 1525

Optical Properties	Original Value	Comments
Refractive Index	1.57	Sodium D Line; ISO 489
Haze	0.30 %	ASTM D 1003
Transmission, Visible	91.3 % @Wavelength 550 nm	ASTM D1003

Processing Properties	Original Value	Comments
Rear Barrel Temperature	180 - 210 °C
Middle Barrel Temperature	200 - 230 °C
Front Barrel Temperature	210 - 240 °C
Melt Temperature	200 - 240 °C	ISO 294
Mold Temperature	30.0 - 60.0 °C	ISO 294
Drying Temperature	80.0 °C @Time 7200 sec

Compliance Properties	Original Value	Comments
USP Class VI	Yes

Descriptive Properties
Injection Velocity	Slow to Moderate	ISO 294

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PSTYR9860 / 216087

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