Evonik ACRYMID® TT50 Acrylic Molding Compound

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Evonik ACRYMID® TT50 Acrylic Molding Compound
Categories:	Polymer; Thermoplastic; Acrylic (PMMA)
Material Notes:	The ACRYLITE® Heatresist and ACRYMID® products are crystal-clear molding compounds offering higher heat deflection temperatures under load than other grades of ACRYLITE®. ACRYMID® TT50 and TT70: ACRYMID® TT50 and TT70 are poly-methyl methacrylimide (PMMI) compounds that offer very high heat deflection temperatures. They are suitable for high-temperature applications such as headlamp lenses, drum lenses and built-in furniture lighting. Besides their high light transmission, clarity, excellent strength and rigidity, these specialty molding compounds offer extremely stable optical values after long-term exposure to heat. Information provided by Evonik
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Physical Properties	Original Value	Comments

Density	1.21 g/cc	ISO 1183
Water Absorption	0.63 %	ISO 62
Water Absorption at Saturation	4.0 %	ISO 62
Linear Mold Shrinkage	0.0020 - 0.0050 in/in	ISO 294
Melt Flow	5.0 g/10 min @Load 10.0 kg, Temperature 260 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	80.0 MPa	5 mm/min; ISO 527
Elongation at Break	3.0 %	5 mm/min; ISO 527
Tensile Modulus	4000 MPa	1 mm/min; ISO 527
Charpy Impact Unnotched	20.0 kJ/m²	ISO 179/1eU

Thermal Properties	Original Value	Comments
CTE, linear	53.0 µin/in-°F @Temperature 0.000 - 50.0 °C	ISO 11359
Deflection Temperature at 0.46 MPa (66 psi)	140 °C	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	132 °C	ISO 75
Vicat Softening Point	150 °C	B/50°C; ISO 306
Glass Transition Temp, Tg	151 °C	IEC 10006
Flammability, UL94	HB @Thickness 1.60 mm	IEC 707

Optical Properties	Original Value	Comments
Refractive Index	1.53	ISO 489
Transmission, Visible	91 %	ISO 13458-2

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PEVONIL069 / 196273

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