常用工程塑料的物理力学性能

1、常用工程塑料的物理、力学性能(表一)性能指标塑料名称及代号聚氯乙烯，硬质聚氯乙烯，软质聚乙烯(高密度)聚乙烯(低密度)聚乙烯，超高分子量聚甲基丙烯酸甲酯(有机玻璃)PVCPVCHDPELDPEUNMWPEPMMA密度/g·cm-31.301.581.161.350.9410.9650.910.9250.941.171.20吸水率(%)0.070.40.51.00.010.010.010.200.40抗拉强度/MPa4550102521383.915.730345077拉伸模量/GPa3.30.41.030.120.240.680.952.43.5断后伸长率(%)20401004502

2、0100(断裂)9080040048027抗压强度/MPa18.624.5抗弯强度/MPa8090353784120冲击韧度悬臂梁，缺口/J·m-2简支梁，无缺口3040kJ/m2801067853.4简支梁，无缺口190200kJ/m2未断14.7硬度洛氏/邵氏/布氏HR/HBS/HBS1417HBS5075HSA6070HSD4150HSD10HRR50HRR1018HBS成型收缩率(%)0.10.5151.54.01.2404.00.20.6无负荷最高使用温度/6679607979121821006595连续耐热温度/85(表二)性能指标塑料名称及代号聚丙烯聚苯乙烯甲基丙烯甲酯

3、-丁二烯-苯乙烯丙烯腈-丁二烯-苯乙烯聚砜聚酰胺(尼龙)-6PPPSMBSABSPSUPA-6密度/g·cm-30.900.911.041.101.091.101.031.061.241.611.131.15吸水率(%)0.030.040.030.300.200.250.31.92.0抗拉强度/MPa354050604255(屈服)216366685178拉伸模量/GPa1.11.62.84.22.22.71.82.92.54.5断后伸长率(%)2001.03.71218(断裂)23602550100150250抗压强度/MP弯强度/MPa425669806

4、297(1.83.0GPa)99106(2.75.2GPa)70100冲击韧度悬臂梁，缺口/J·m-21010010805015012345434.764.153.364硬度洛氏/邵氏/布氏HR/HBS/HBS50102HRR6580HRM100120HRR62121HRR6974HRM85114HRR成型收缩率(%)1.02.50.20.70.30.60.40.7无负荷最高使用温度/881166079669914982121连续耐热温度/130190(表三)性能指标塑料名称及代号聚酰胺(尼龙)-66聚酰胺(尼龙)-610聚酰胺(尼龙)-1010聚酰胺(尼龙)-铸型聚甲醛(均聚)聚甲

5、醛(共聚)PA-66PA-610PA-1010PA-MCPOMPOM密度/g·cm-31.141.151.071.091.041.071.101.421.431.411.43吸水率(%)1.50.50.390.61.20.200.270.220.29抗拉强度/MPa578347605255779258706268拉伸模量/GPa1.62.43.62.93.12.8断后伸长率(%)40270100240100250203015754075抗压强度/MPa90120709065122113抗弯强度/MPa60110701008589(1.8GPa)12015098(2.9GPa)9192

6、(2.6GPa)冲击韧度悬臂梁，缺口/J·m-24364简支梁，有缺口3.55.5kJ/m2简支梁，有缺口45kJ/m2简支梁，无缺口500600kJ/m2641235385硬度洛氏/邵氏/布氏HR/HBS/HBS100118HRR90130HRR71HBS1421HBS118120HRR8094HRM120HRR7884HRM成型收缩率(%)1.52.21.52.012.5径向34纵向7122.02.52.03.0无负荷最高使用温度/8214991100连续耐热温度/12180(表四)性能指标塑料名称及代号聚碳酸酯聚氯醚聚酚氧聚对苯二甲酸乙二(醇)酯聚对苯二甲酸丁二(醇)酯聚四氟乙

7、烯聚三氟氯乙烯PC  PETPPBTPPTFEPCTFE密度/g·cm-31.181.201.401.171.181.371.381.301.552.12.22.12.2吸水率(%)0.20.30.010.130.080.090.030.090.010.020.02抗拉强度/MPa6088425655705752.56514253142拉伸模量/GPa2.53.01.12.42.72.82.92.60.41.12.1断后伸长率(%)809560130501005030025050050190抗压强度/MPa6676抗弯强度/MPa94130547883110(2.

8、32.8GPa)8411783103(2.2GPa)18205265冲击韧度悬臂梁，缺口/J·m-2640830简支梁，无缺口40kJ/m2801270.435.4107160192硬度洛氏/邵氏/布氏HR/HBS/HBS6886HRM100HRM118123HRR6898HRM118HRR5065HSD74HSD成型收缩率(%)0.50.80.40.60.30.41.52.515(模压)12.5无负荷最高使用温度/12179138288177199连续耐热温度/1206580(表五)性能指标塑料名称及代号聚全氟乙烯丙烯聚苯醚聚酰亚胺(均苯型)聚酰亚胺(醚酐型)聚酰亚胺(聚醚型)聚酰

9、亚胺(聚酰胺型)酚醛(木粉)环氧树脂(玻纤)FEPPPOPI   PFEP密度/g·cm-32.12.21.061.361.421.431.361.381.271.421.371.461.62.0吸水率(%)0.010.060.120.20.30.30.250.33(饱和)0.31.20.040.20抗拉强度/MPa1922486694.512010514097152356235137拉伸模量/GPa0.352.32.63.04.55.511.720.7断后伸长率(%)250330356068610607.60.40.84抗压强度/MPa69113276230140221172214124276抗弯强度/MPa5797117(3.2GPa)200210(3.3GPa)152(3.3GPa)189241(5.03GPa)489755207冲击韧度悬臂梁，缺口/J·m-221437453.464.114410.732.016.053.4硬度洛氏/邵氏/布氏HR/HBS/HBS6065HSD115120HRR93HRM92102HRM109110HRM86HRE100115HRM100112HRM成型收缩率(%)