常用工程塑料的物理力學(xué)性能

1、常用工程塑料的物理、力學(xué)性能(表一)性能指標(biāo)塑料名稱及代號聚氯乙烯，硬質(zhì)聚氯乙烯，軟質(zhì)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(有機玻璃)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抗拉強度/MPa4550102521383.915.730345077拉伸模量/GPa3.30.41.030.120.240.680.952.43.5斷后伸長率(%)20401004502

2、0100(斷裂)9080040048027抗壓強度/MPa18.624.5抗彎強度/MPa8090353784120沖擊韌度懸臂梁，缺口/J·m-2簡支梁，無缺口3040kJ/m2801067853.4簡支梁，無缺口190200kJ/m2未斷14.7硬度洛氏/邵氏/布氏HR/HBS/HBS1417HBS5075HSA6070HSD4150HSD10HRR50HRR1018HBS成型收縮率(%)0.10.5151.54.01.2404.00.20.6無負(fù)荷最高使用溫度/6679607979121821006595連續(xù)耐熱溫度/85(表二)性能指標(biāo)塑料名稱及代號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(尼龍)-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抗拉強度/MPa354050604255(屈服)216366685178拉伸模量/GPa1.11.62.84.22.22.71.82.92.54.5斷后伸長率(%)2001.03.71218(斷裂)23602550100150250抗壓強度/MP彎強度/MPa425669806

4、297(1.83.0GPa)99106(2.75.2GPa)70100沖擊韌度懸臂梁，缺口/J·m-21010010805015012345434.764.153.364硬度洛氏/邵氏/布氏HR/HBS/HBS50102HRR6580HRM100120HRR62121HRR6974HRM85114HRR成型收縮率(%)1.02.50.20.70.30.60.40.7無負(fù)荷最高使用溫度/881166079669914982121連續(xù)耐熱溫度/130190(表三)性能指標(biāo)塑料名稱及代號聚酰胺(尼龍)-66聚酰胺(尼龍)-610聚酰胺(尼龍)-1010聚酰胺(尼龍)-鑄型聚甲醛(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抗拉強度/MPa578347605255779258706268拉伸模量/GPa1.62.43.62.93.12.8斷后伸長率(%)40270100240100250203015754075抗壓強度/MPa90120709065122113抗彎強度/MPa60110701008589(1.8GPa)12015098(2.9GPa)9192

6、(2.6GPa)沖擊韌度懸臂梁，缺口/J·m-24364簡支梁，有缺口3.55.5kJ/m2簡支梁，有缺口45kJ/m2簡支梁，無缺口500600kJ/m2641235385硬度洛氏/邵氏/布氏HR/HBS/HBS100118HRR90130HRR71HBS1421HBS118120HRR8094HRM120HRR7884HRM成型收縮率(%)1.52.21.52.012.5徑向34縱向7122.02.52.03.0無負(fù)荷最高使用溫度/8214991100連續(xù)耐熱溫度/12180(表四)性能指標(biāo)塑料名稱及代號聚碳酸酯聚氯醚聚酚氧聚對苯二甲酸乙二(醇)酯聚對苯二甲酸丁二(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抗拉強度/MPa6088425655705752.56514253142拉伸模量/GPa2.53.01.12.42.72.82.92.60.41.12.1斷后伸長率(%)809560130501005030025050050190抗壓強度/MPa6676抗彎強度/MPa94130547883110(2.

8、32.8GPa)8411783103(2.2GPa)18205265沖擊韌度懸臂梁，缺口/J·m-2640830簡支梁，無缺口40kJ/m2801270.435.4107160192硬度洛氏/邵氏/布氏HR/HBS/HBS6886HRM100HRM118123HRR6898HRM118HRR5065HSD74HSD成型收縮率(%)0.50.80.40.60.30.41.52.515(模壓)12.5無負(fù)荷最高使用溫度/12179138288177199連續(xù)耐熱溫度/1206580(表五)性能指標(biāo)塑料名稱及代號聚全氟乙烯丙烯聚苯醚聚酰亞胺(均苯型)聚酰亞胺(醚酐型)聚酰亞胺(聚醚型)聚酰

9、亞胺(聚酰胺型)酚醛(木粉)環(huán)氧樹脂(玻纖)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(飽和)0.31.20.040.20抗拉強度/MPa1922486694.512010514097152356235137拉伸模量/GPa0.352.32.63.04.55.511.720.7斷后伸長率(%)250330356068610607.60.40.84抗壓強度/MPa69113276230140221172214124276抗彎強度/MPa5797117(3.2GPa)200210(3.3GPa)152(3.3GPa)189241(5.03GPa)489755207沖擊韌度懸臂梁，缺口/J·m-221437453.464.114410.732.016.053.4硬度洛氏/邵氏/布氏HR/HBS/HBS6065HSD115120HRR93HRM92102HRM109110HRM86HRE100115HRM100112HRM成型收縮率(%)