类别:聚合物;热塑性塑料;丙烯酸(有机玻璃);丙烯酸
材料说明:有机玻璃®GS 245具有耐候性,是专门为了满足航空工业的高光要求铸造丙烯酸。所用材料为紫外线吸收,并可提供透明透明和透明的颜色等级。典型的应用是直升机的檐篷,篷运动平面玻璃和滑翔机,超轻型飞机。
物性表:Physical Properties | Metric | English | Comments |
---|---|---|---|
Density | 1.19 g/cc | 0.0430 lb/in³ | ISO 1183, ASTM D792 |
Mechanical Properties | Metric | English | Comments |
Tensile Strength at Break | 80.0 MPa | 11600 psi | ISO 527-2/1B/5, ASTM D638 |
Elongation at Break | 5.5 % | 5.5 % | ISO 527-2/1B/5, ASTM D 638 |
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 |
EN 2155-12, ASTM D696 |
Maximum Service Temperature, Air | 105 °C | 221 °F | ISO 71-2Ae, ASTM D648 |
Vicat Softening Point | 115 °C | 239 °F | ISO 306-B-50 |
Flame Spread | 35.6 mm/min | 1.40 in/min | Fire Rating; ASTM D635 |
36.0 mm/min | 1.42 in/min | Fire Rating; EN 3844-2 | |
Shrinkage | 1.5 % @Thickness 6.35 mm, Temperature 160 °C |
1.5 % @Thickness 0.250 in, Temperature 320 °F |
16 min |
Optical Properties | Metric | English | Comments |
Refractive Index | 1.49 | 1.49 | ISO 489, ASTM D542 |
Haze | 0.50 % | 0.50 % | Original State; EN 2155-9, ASTM D1003 |
1.0 % | 1.0 % | after artificial weathering; EN 2155-9, ASTM D1003 | |
Transmission, Visible | 89 % | 89 % | after artificial weathering; ASTM D1003 |
91 % | 91 % | Original State; EN 2155-5, ASTM D1003 | |
UV Transmittance | <= 1.0 % @Wavelength 290 - 330 nm |
<= 1.0 % @Wavelength 290 - 330 nm |
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