PMMAHT55Y：原料技术数据性能项目试验条件[状态]测试方法测试数据数据单位物理性能比重JISK71121.17g/cm³熔体流动速率JISK72102.0g/10min收缩率流动ASTMD9550.4-0.7%吸水率24hrJISK72090.4%洛氏硬度M-ScaleJISK720275机械性能抗张强度JISK711356.0MPa伸长率断裂JISK711350%弯曲模量JISK72032500MPa弯曲强度JISK720390MPa简支梁缺口冲击强度JISK71103.8kJ/m²热性能热变形温度1.8MPa，退火JISK720794.0℃维卡软化温度JISK7206103℃线性膨胀系数流动ASTMD6960.00008cm/cm/℃电气性能表面电阻率JISK6911>1.0E+16ohms)