类别：聚合物；热塑性塑料；丙烯酸（有机玻璃）；丙烯酸
材料说明：说明：有机玻璃®7N是基于聚甲基丙烯酸甲酯（PMMA）复合成型。有机玻璃®模塑化合物的典型性质：良好流动性，机械强度高，表面硬度和耐磨性良好，优良的耐候性，晶体的透明着色性自由
有机玻璃®7N化合物的特殊性质：非常好的机械性能，非常好的流量/熔体粘度。
用途：用于注塑光学和技术项目。物性表：
| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 1.19 g/cc | 0.0430 lb/in³ | ISO 1183 | ||
| Melt Flow | 7.14 g/10 min @Load 3.80 kg, Temperature 230 °C |
7.14 g/10 min @Load 8.38 lb, Temperature 446 °F |
ISO 1133 | ||
| Mechanical Properties | Metric | English | Comments | ||
| Tensile Strength at Break | 73.0 MPa | 10600 psi | 5 mm/min; ISO 527 | ||
| Elongation at Break | 3.5 % | 3.5 % | 5 mm/min; ISO 527 | ||
| Tensile Modulus | 3.20 GPa | 464 ksi | 1 mm/min; ISO 527 | ||
| Charpy Impact Unnotched | 2.00 J/cm² @Temperature 23.0 °C |
9.52 ft-lb/in² @Temperature 73.4 °F |
ISO 179 | ||
| Thermal Properties | Metric | English | Comments | ||
| CTE, linear | 80.0 µm/m-°C @Temperature 0.000 - 50.0 °C |
44.4 µin/in-°F @Temperature 32.0 - 122 °F |
ASTM E831 | ||
| Deflection Temperature at 0.46 MPa (66 psi) | 100 °C | 212 °F | ISO 75 | ||
| Deflection Temperature at 1.8 MPa (264 psi) | 95.0 °C | 203 °F | ISO 75 | ||
| Vicat Softening Point | 103 °C | 217 °F | B50; ISO 306 | ||
| Glass Transition Temp, Tg | 110 °C | 230 °F | IEC 10006 | ||
| Flammability, UL94 | HB @Thickness 1.60 mm |
HB @Thickness 0.0630 in |
IEC 707 | ||
| Optical Properties | Metric | English | Comments | ||
| Refractive Index | 1.49 | 1.49 | ISO 489 | ||
| Haze | <= 0.50 % | <= 0.50 % | ASTM D1003 | ||
| Transmission, Visible | 92 % | 92 % | Transmission Factor; DIN 5036 | ||
| Processing Properties | Metric | English | Comments | ||
| Processing Temperature | 220 - 260 °C | 428 - 500 °F | Cylinder Temperature | ||
| Melt Temperature | 220 - 260 °C | 428 - 500 °F | |||
| Mold Temperature | 60.0 - 90.0 °C | 140 - 194 °F | |||
| Drying Temperature | <= 93.0 °C | <= 199 °F | Predrying | ||
| Dry Time | 2 - 3 hour | 2 - 3 hour | Desiccant-type drier | ||
| De |
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| Fire Rating | B2 | DIN 4102 |
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