70g33hs1-l

聚亚己基己二酸酰胺#聚己二酰己二胺|尼龙66|pa66

美国杜邦

填充物:高强度 注塑

物性信息：

基本性能额定值单位测试方法吸水率
astm d-570    (饱和(23℃))5.4%
    (24小时浸渍(23℃))0.7%
物理性能额定值单位测试方法比重1.38
astm d-792机械性能额定值单位测试方法断裂伸长率
astm d-638    (23℃,dam)3%
    (23℃,50%rh)4%
拉伸强度 (23℃,dam)196.1mpaastm d-638挠曲模量 (23℃,50%rh)6205mpaastm d-790拉伸强度 (23℃,50%rh)124.1mpaastm d-638洛氏硬度m (dam)m101
astm d-785挠曲模量 (23℃,dam)8963mpaastm d-790挤剪强度 (23℃,dam)86mpaastm d-732泰伯磨耗量 (50%rh)14cycles
埃佐冲击强度
astm d-256    (23℃,dam)107j/m
    (23℃,50%rh)133j/m
挠曲强度 (23℃,dam)262mpaastm d-790电气性能额定值单位测试方法介电强度 ((分步法)dam)440volts/milastm d-149介电常数
astm d-150    (rh@10hz赫)10.7
    (rh@10hz赫)25.0
体积电阻率 (rh)10ohm-cmastm d-257介电常数 (dam@10hz赫)3.7
astm d-150介电强度 (dam)530volts/milastm d-149损耗因数 (dam@10hz赫)0.02
astm d-150体积电阻率 (dam)10ohm-cmastm d-257介电常数 (dam@10hz赫)4.5
astm d-150损耗因数 (dam@10hz赫)0.02
astm d-150热性能额定值单位测试方法热畸变温度 (1.8mpa)249℃astm d-648熔点
    (50%rh)255℃astm d-789    (astm d-789)255℃dam线性热膨胀系数2.3×10-5m/m/℃astm d-696

introduction chinese alias: nylon 66 staple fiber;polyhexanediamide; nylon -66; nylon 66 resin; polyamide -66;polyhexanediamine; nylon -66. nylon 66 has high fatigue strengthand steel property, good heat resistance, low friction coefficient,good wear resistance, but high hygroscopicity and poor dimensionalstability. generally used for medium load, using temperature & lt;100 -120 degrees without lubrication or less lubrication conditionsof wear-resistant force transmission parts. ii thermal propertiesmelting point (tm) melting point is the temperature ofcrystallization melting, showing clear melting point forcrystalline polymer nylon-66. according to the adopted test method,the melting point fluctuates in the range of 259 ~ 267 ° c. themelting point of nylon-66 measured by differential thermal analysis(dta) is 264 ° c. in fact, the melting point of nylon-66 can becalculated according to the melting heat (Δh) and the meltingentropy (δs) of the crystallization: the Δh of nylon-66 is 4390.3j/mol, the Δs is 8.37 j/kmol, and the theoretical value of tm is259.3 ° c [] . the melting point of nylon-66 is 246 ~ 263 ° c ifthe temperature at which the volume expansion coefficient shows themaximum value is taken as the melting point. the theoreticalmelting temperature is 259 ° c. glass transition temperature (tg)the specific volume and specific heat capacity of polymers canchange irregularly at a certain temperature, which is the glasstransition temperature, it is the temperature at which the segmentsof a molecular chain begin to move, overcoming the forces betweenthe molecules. at this temperature, the modulus,uency, dielectric constant and so on also begin to change. theglass transition temperature of nylon -66 is related to the testmethod, moisture content, monomer concentration and crystallinityof the sample. wilhoit and dole considered that the glasstransition temperature of nylon-66 was 47 ° c [] , while rybnikardetermined the specific volume of nylon-66 at low temperature, itis found that there is also a transition temperature at -65 ° c innylon-66[] .