ACRYMID® TT70
Polymethyl Methacrylimide Acrylic
ACRYMID® TT70 is a highly heat distortion-resistant poly(n-methyl methacrylimide) (PMMI).
Besides showing the properties common to all ACRYMID® molding compounds, such as
ACRYMID® TT70 has the following specific characteristics:
Application:
ACRYMID® molding compound is particularly suitable for injection molding of items meant for applications that involve maximum thermal loads.
Features | |
Uses | - Lenses，Lighting Applications，Lighting Fixtures
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Forms | |
Processing Method | |
Density | 1.21 | g/cm³ | ISO 1183 |
Melt Volume-Flow Rate (MVR) (260°C/10.0 kg) | 0.104 | in³/10min | ISO 1133 |
Water Absorption (Equilibrium, 73°F, 50% RH) | 6.0 | % | ISO 62 |
Tensile Modulus | 580000 | psi | ISO 527-2/1 |
Tensile Stress (Break) | 11600 | psi | ISO 527-2/5 |
Tensile Strain (Break) | 3.0 | % | ISO 527-2/5 |
Charpy Unnotched Impact Strength (73°F) | 9.5 | ft·lb/in² | ISO 179/1eU |
Heat Deflection Temperature |
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66 psi, Unannealed | 316 | °F | ISO 75-2/B |
264 psi, Unannealed | 300 | °F | ISO 75-2/A |
Vicat Softening Temperature | 338 | °F | ISO 306/B50 |
Flame Rating (0.06 in) | HB |
| IEC 707 |
Fire Rating | B2 |
| DIN 4102 |
Refractive Index | 1.540 |
| ISO 489 |
Transmittance | 91.0 | % | ISO 13468-2 |
Drying Temperature | < 302 | °F |
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Drying Time | 2.0 to 3.0 | hr |
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Processing (Melt) Temp | 500 to 554 | °F |
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Mold Temperature | 266 | °F |
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