PMMA的用途：
PMMA具有质轻、价廉，易於成型等优点。溶于有机溶剂如苯甲醚等，可以形成良好的薄膜和良好的介电性能，可以作为有机场效应管的介质层。
它的成型方法有浇铸，射出成型，机械加工、热成型等。尤其是射出成型，可以大批量生产，制程简单，成本低。因此，它的应用日趋广泛，目前它广泛用于仪器仪表零件、汽车车灯、光学镜片、透明管道等。
PMMA的原料图：
、
、PMMA的物性表:
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Specific Gravity | 1.07 g/cc | 1.07 g/cc | ASTM D792 |
| Water Absorption | <= 0.30 % | <= 0.30 % | ASTM D570 |
| Linear Mold Shrinkage | 0.0040 - 0.0070 cm/cm | 0.0040 - 0.0070 in/in | ASTM D551 |
| Melt Flow | 12 g/10 min @Load 5.00 kg, Temperature 230 °C |
12 g/10 min @Load 11.0 lb, Temperature 446 °F |
ASTM D1238 |
| Mechanical Properties | Metric | English | Comments |
| Hardness, Rockwell L | 40 | 40 | ASTM D785 |
| Tensile Strength, Yield | 34.5 MPa | 5000 psi | ASTM D638 |
| Elongation at Break | 27 % | 27 % | ASTM D638 |
| Elongation at Yield | 4.3 % | 4.3 % | ASTM D638 |
| Tensile Modulus | 1.70 GPa | 247 ksi | ASTM D638 |
| Flexural Strength | 55.8 MPa | 8090 psi | ASTM D790 |
| Flexural Modulus | 1.40 GPa | 203 ksi | ASTM D790 |
| Compressive Strength | 36.5 MPa | 5300 psi | ASTM D695 |
| Izod Impact, Notched | 0.641 J/cm @Thickness 6.35 mm, Temperature 0.000 °C |
1.20 ft-lb/in @Thickness 0.250 in, Temperature 32.0 °F |
ASTM D256 |
| 0.747 J/cm @Thickness 6.35 mm, Temperature 23.0 °C |
1.40 ft-lb/in @Thickness 0.250 in, Temperature 73.4 °F |
ASTM D256 | |
| Thermal Properties | Metric | English | Comments |
| CTE, linear | 72.0 µm/m-°C @Temperature 0.000 - 100 °C |
40.0 µin/in-°F @Temperature 32.0 - 212 °F |
ASTM D696 |
| Deflection Temperature at 1.8 MPa (264 psi) | 68.9 °C | 156 °F | ASTM D648 |
| Vicat Softening Point | 88.0 °C | 190 °F | ASTM D1525 |
| Flammability, UL94 | HB | HB | |
| Optical Properties | Metric | English | Comments |
| Refractive Index | 1.52 | 1.52 | ASTM D542 |
| Haze | 2.0 % | 2.0 % | ASTM D1003 |
| Transmission, Visible | 88 % | 88 % | ASTM D1003 |
| Processing Properties | Metric | English | Comments |
| Middle Barrel Temperature | 221 °C | 430 °F | |
| Front Barrel Temperature | 227 °C | 440 °F | |
| Nozzle Temperature | 227 °C | 440 °F | |
| Melt Temperature | 227 °C | 440 °F | |
| Mold Temperature | 48.9 °C | 120 °F | |
| Drying Temperature | 71.1 °C | 160 °F | 3-4hrs |
| Injection Pressure | 96.5 MPa | 14000 psi | |
| Back Pressure | 0.276 MPa | 40.0 psi | |
| Screw Speed | 30 rpm | 30 rpm | |
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