类别：聚合物；热塑性塑料；丙烯酸（有机玻璃）；丙烯酸，一般用途
材料说明：pmma GR 7E LIL与机械之间的良好平衡注塑级，热性能和光学。
主要特点：
易加工和脱模
优良化学电阻性
良好的耐刮性
pmma GR 7E LIL尤其对于像家庭用品推荐应用：沙拉碗，杯子，餐具及其他家庭用品处理部分需要耐洗碗机循环。
物性表：
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 1.18 g/cc | 0.0426 lb/in³ | |
| Water Absorption | 1.9 % | 1.9 % | |
| Moisture Absorption at Equilibrium | 0.30 % | 0.30 % | Humidity Absorption |
| Melt Flow | 2.4 g/10 min @Load 3.80 kg, Temperature 230 °C |
2.4 g/10 min @Load 8.38 lb, Temperature 446 °F |
|
| Mechanical Properties | Metric | English | Comments |
| Tensile Strength, Yield | 85.0 MPa | 12300 psi | 50 mm/min |
| Elongation at Break | 6.0 % | 6.0 % | Nominal Strain; 50 mm/min |
| Tensile Modulus | 3.30 GPa | 479 ksi | 1 mm/min |
| Charpy Impact Unnotched | 2.00 J/cm² | 9.52 ft-lb/in² | |
| Charpy Impact, Notched | 0.200 J/cm² | 0.952 ft-lb/in² | |
| Tensile Creep Modulus, 1 hour | 2700 MPa | 392000 psi | |
| Tensile Creep Modulus, 1000 hours | 1800 MPa | 261000 psi | |
| Electrical Properties | Metric | English | Comments |
| Electrical Resistivity | 1.00e+15 ohm-cm | 1.00e+15 ohm-cm | |
| Surface Resistance | 1.00e+14 ohm | 1.00e+14 ohm | |
Dielectric Constant  |
3.2 @Frequency 1e+6 Hz |
3.2 @Frequency 1e+6 Hz |
|
| 3.7 @Frequency 100 Hz |
3.7 @Frequency 100 Hz |
||
| Dielectric Strength | 19.7 kV/mm | 500 kV/in | |
| Dissipation Factor |
0.040 @Frequency 1e+6 Hz |
0.040 @Frequency 1e+6 Hz |
|
| 0.050 @Frequency 100 Hz |
0.050 @Frequency 100 Hz |
||
| Comparative Tracking Index | 600 V | 600 V | |
| Thermal Properties | Metric | English | Comments |
| CTE, linear | 70.0 µm/m-°C @Temperature 20.0 °C |
38.9 µin/in-°F @Temperature 68.0 °F |
|
| Deflection Temperature at 0.46 MPa (66 psi) | 97.0 °C | 207 °F | |
| Deflection Temperature at 1.8 MPa (264 psi) | 92.0 °C | 198 °F | |
| Vicat Softening Point | 80.0 °C | 176 °F | 50°C/hr; 50N |
| Flammability, UL94 | HB @Thickness 1.60 mm |
HB @Thickness 0.0630 in |
|
| Optical Properties | Metric | English | Comments |
| Transmission, Visible | 80 % | 80 % | Mfr. reports 'Transparent' but doesn't quantify. |
图：
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欢迎新老客户来电咨询;
联系人：李先生
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联系QQ；1396427082
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