ACRYMID® TT70
聚甲基丙烯酸甲酯-丙烯酸
ACRYMID® TT70 is a highly heat distortion-resistant poly(n-methyl methacrylimide) (PMMI).
Besides showing the properties common to all ACRYMID® molding compounds, such as
ACRYMID® TT70 has the following specific characteristics:
Application:
ACRYMID® molding compound is particularly suitable for injection molding of items meant for applications that involve maximum thermal loads.
特性 | - High Light Transmission、刚性高、高强度、耐气候影响性能良好、耐热性高、清晰度高
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用途 | - Lighting Applications、镜头、照明装置
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形式 | |
加工方法 | |
密度 | 1.21 | g/cm³ | ISO 1183 |
熔融体积流量(MVR) (260°C/10.0 kg) | 0.104 | in³/10min | ISO 1133 |
吸水率 (平衡, 73°F, 50% RH) | 6.0 | % | ISO 62 |
拉伸模量 | 580000 | psi | ISO 527-2/1 |
拉伸应力 (断裂) | 11600 | psi | ISO 527-2/5 |
拉伸应变 (断裂) | 3.0 | % | ISO 527-2/5 |
简支梁无缺口冲击强度 (73°F) | 9.5 | ft·lb/in² | ISO 179/1eU |
热变形温度 |
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66 psi, 未退火 | 316 | °F | ISO 75-2/B |
264 psi, 未退火 | 300 | °F | ISO 75-2/A |
维卡软化温度 | 338 | °F | ISO 306/B50 |
UL 阻燃等级 (0.06 in) | HB |
| IEC 707 |
Fire Rating | B2 |
| DIN 4102 |
折射率 | 1.540 |
| ISO 489 |
透射率 | 91.0 | % | ISO 13468-2 |
干燥温度 | < 302 | °F |
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干燥时间 | 2.0 到 3.0 | hr |
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加工(熔体)温度 | 500 到 554 | °F |
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模具温度 | 266 | °F |
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