Röhm ACRYLITE® MD™ H12 Acrylic Polymer For Medical Diagnostics

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Röhm ACRYLITE® MD™ H12 Acrylic Polymer For Medical Diagnostics (discontinued **)
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Optical Grade, Molded; Acrylic, UV Stabilized, Molded
Material Notes:	ACRYLITE® MD™ H12 acrylic polymer is an amorphous thermoplastic molding compound based on polymethyl methacrylate (PMMA) for the medical diagnostic industry. Typical properties of ACRYLITE® MD™ acrylic polymers are exceptional ultra-violet light transmittance (UVT), exceptional optical clarity, and good dimensional stability for controlled fluid flow. The special properties of ACRYLITE MD™ L40 polymer are medium heat resistance, medium melt flow rate, UV light transmitting, and lubricant free. Application: Used for injection molded thin-wall medical devices requiring UV spectroscopy for fluid evaluation. Information Provided by Evonik CYRO. The former Evonik Methacrylates business has been sold to Röhm (Roehm) GmbH.
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Physical Properties	Original Value	Comments

Specific Gravity	1.19 g/cc	ASTM D792
Bulk Density	0.660 g/cc	ASTM D1895
Water Absorption at Saturation	0.30 %	ASTM D570
Linear Mold Shrinkage	0.0040 - 0.0060 in/in	ASTM D955
Melt Flow	7.0 g/10 min @Load 3.80 kg, Temperature 230 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	94	ASTM D785
Tensile Strength at Break	9500 psi	ASTM D638
Elongation at Break	4.0 - 6.0 %	ASTM D638
Elongation at Yield	4.0 - 6.0 %	ASTM D638
Tensile Modulus	470000 psi	ASTM D638
Flexural Strength	17000 psi	ASTM D790
Flexural Modulus	490000 psi	ASTM D790
Izod Impact, Notched	0.360 ft-lb/in @Temperature 23.0 °C	1/4" bar; ASTM D256

Thermal Properties	Original Value	Comments
CTE, linear	40.0 µin/in-°F @Temperature 0.000 - 156 °C	ASTM D696
Deflection Temperature at 1.8 MPa (264 psi)	201 °F @Thickness 6.35 mm	Annealed; ASTM D648
Vicat Softening Point	221 °F	ASTM D1525

Optical Properties	Original Value	Comments
Haze	<= 1.0 %	ASTM D1003
Yellow Index	<= 1.0 %	ASTM D1925
Transmission, Visible	92 %	ASTM D1003
UV Transmittance	>= 87.7 %	340 nm

Processing Properties	Original Value	Comments
Middle Barrel Temperature	430 - 480 °F
Melt Temperature	430 - 480 °F
Mold Temperature	90.0 - 175 °F
Drying Temperature	170 °F
Dry Time	3 - 4 hour

**
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PCYR00053 / 101042

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