ACRYLITE? Heatresist FT15
聚甲基丙烯酸甲酯-丙烯酸
When high heat resistance and lighting efficiency is desired ACRYLITE? Heatresist acrylic compounds provide the solution. They offer all the advantages of PMMA including weatherability and optics but provide another level of heat resistance. These copolymers are based on methyl methacrylate (MMA) with comonomer constituents. They are ideal for technical parts subjected to high thermal stress.
ACRYLITE? Heatresist molding and extrusion compounds are offered in two grades. ACRYLITE? hw55 and ACRYLITE? FT15 offer the following benefits:
ACRYLITE? Heatresist FT15 offers very high heat resistant characteristics compared to most other grades of ACRYLITE? polymer. Higher melt volume rates than ACRYLITE? Heatresist hw55.
特性 | |
用途 | - Lighting Applications、船舶應(yīng)用、鏡頭、汽車領(lǐng)域的應(yīng)用、醫(yī)療/護(hù)理用品
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機構(gòu)評級 | |
外觀 | |
形式 | |
加工方法 | |
密度 | 1.19 | g/cm3 | ISO 1183 |
熔融體積流量（MVR） (230°C/3.8 kg) | 0.275 | in3/10min | ISO 1133 |
收縮率 | 0.20 到 0.50 | % | ISO 294-4 |
吸水率 |
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| ISO 62 |
飽和, 73°F | 2.0 | % |
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平衡, 73°F, 50% RH | 0.46 | % |
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拉伸模量 | 508000 | psi | ISO 527-2/1 |
拉伸應(yīng)力 (斷裂) | 7250 | psi | ISO 527-2/5 |
拉伸應(yīng)變 (斷裂) | 3.1 | % | ISO 527-2/5 |
簡支梁無缺口沖擊強度 | 8.6 | ft·lb/in2 | ISO 179/1eU |
熱變形溫度 |
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66 psi, 未退火 | 225 | °F | ISO 75-2/B |
264 psi, 未退火 | 221 | °F | ISO 75-2/A |
玻璃轉(zhuǎn)化溫度 | 250 | °F | IEC 10006 |
維卡軟化溫度 | 239 | °F | ISO 306/B50 |
線形熱膨脹系數(shù) - 流動 (32 到 122°F) | 3.7E-5 | in/in/°F | ISO 11359-2 |
UL 阻燃等級 (0.06 in) | HB |
| IEC 707 |
Fire Rating | B2 |
| DIN 4102 |
折射率 | 1.502 |
| ISO 489 |
透射率 | 91.0 | % | ISO 13468-2 |
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