POM美国杜邦500P高润滑高刚性增韧耐磨聚甲醛齿轮汽车配件POM美国杜邦500P高润滑高刚性增韧耐磨聚甲醛齿轮汽车配件性能项目测试条件测试方法数值/描述单位机械性能拉伸强度(引张强度)ASTMD638/ISO527kg/cm⊃2;(MPa)[Lb/in2]断裂伸长率ASTMD638/ISO52765%拉伸模量ASTMD638/ISO5272900kg/cm⊃2;(MPa)[Lb/in2]拉伸屈服伸长率(延伸率)ASTMD638/ISO52745%拉伸断裂伸长率(延伸率)ASTMD638/ISO52745%弯曲模量(弯曲弹性率)ASTMD790/ISO1782600kg/cm⊃2;(MPa)[Lb/in2]弯曲强度ASTMD790/ISO17874kg/cm⊃2;(MPa)[Lb/in2]洛氏硬度ASTMD78594IZOD缺口冲击强度1/4"23℃ASTMD256/ISO17914kg·cm/cm(J/M)ft·lb/in1/4"-30℃ASTMD256/ISO17911kg·cm/cm(J/M)ft·lb/in1/8"23℃ASTMD256/ISO17914kg·cm/cm(J/M)ft·lb/in1/8"-30℃ASTMD256/ISO17911kg·cm/cm(J/M)ft·lb/inCharpy冲击强度23℃（缺口）ASTMD256/ISO179kg·cm/cm(J/M)ft·lb/in-30℃（缺口）ASTMD256/ISO179kg·cm/cm(J/M)ft·lb/in23℃（无缺口）ASTMD256/ISO179kg·cm/cm(J/M)ft·lb/in-30℃（无缺口）ASTMD256/ISO179kg·cm/cm(J/M)ft·lb/in物性性能比重（密度）ASTMD792/ISO11831.42成型收缩率ASTMD9552.2%熔融指数（流动系数）200℃/5kgASTMD1238/ISO11332.5g/10min220℃/10kgASTMD1238/ISO11332.5g/10min吸水率23℃/24HASTMD570/ISO620.3%热性能热变形温度退火ASTMD648/ISO75160℃（℉）未退火ASTMD648/ISO75175℃（℉）维卡软化点ASTMD1525/ISOR306℃（℉）熔点-175℃（℉）燃烧性（率）UL94HB线性膨胀系数ASTMD696/ISO1135914mm/mm.℃电气性能介电常数100HZASTMD150/IEC602503.81MHZASTMD150/IEC6025019.7体积电阻率ASTMD257/IEC60093Ω.cm表面电阻率ASTMD257/IEC60093Ω耐电弧性ASTMD495/IEC60112)