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["特氟龙原料特性表(部分)"]
["特性",null,"ASTM标准","单位","PTFE(F4)","FEP(F46)","PFA","ETFE(F40)","ECTFE(F30)"]
["机械特性","比重","D792",null,2.15,2.15,2.15,1.74,1.72]
[null,"硬度","D2240","R","50~65",56,60,72,70]
[null,"摩擦系数","D1894","静","0.12~0.15","0.12~0.20",0.2,"0.24~0.50","0.35~0.50"]
[{"$nulls":3},"动","0.05~0.10","0.08~0.30","0.10~0.30","0.30~0.40","0.40~0.50"]
[null,"抗张强度","D1457.D1708.D638","Mpa","21~35",23,25,48,41]
[null,"伸长率","D1457.D1708.D638","%","300~500",325,300,430,300]
[null,"弯曲系数","D790","psi",72000,85000,85000,170000,170000]
[null,"耐冲击强度","D256","焦耳/米",189,"不断裂","不断裂","不断裂","不断裂"]
[null,"水接触角",null,"度","104~111","95~105","104~111","90~100","95~100"]
["热特性","熔点","D3418","℃",327,260,305,260,245]
[null,"烧结温度",null,"℃","380~430","360~390","380~400","270~290","250~270"]
[null,"连续使用温度",null,"℃",290,205,260,160,150]
[null,"间断使用温度",null,"℃",315,230,290,200,160]
[null,"火焰等级","UL94",null,"V-0","V-0","V-0","V-0","V-0"]
[null,"限定氧指数","D2863","%",">95",">95",">95","30~36",52]
[null,"燃烧热","D240","百万焦耳/公斤",5.1,5.1,5.3,13.7,13.7]
[null,"导热性",null,"W/m.k",0.25,0.2,0.19,0.24,0.14]
["化学特性","耐化学品.溶剂","D534",null,"优","优","优","优","优"]
[null,"24H吸水性","D570","%","<0.01","<0.01","<0.03","<0.03","<0.03"]
[null,"*耐盐雾(铝)","B-117","小时","744+","744+",1000,"1000+","1000+"]
[null,"耐候性","佛罗里达气候","年",20,20,10,15,15]
["电气特性","绝缘常数","D150","1MHz",2.1,2.1,2.1,2.6,2.6]
[null,"绝缘强度","D149","V/um",18,53,80,79,79]
[null,"介电系数","D150","1MHz","<0.0001",0.0006,0.0001,0.007,0.007]
[null,"耐电弧","D495","秒",">300",">300",">180",122,125]
[null,"体积电阻","D257","Ω.cm",">1018",">1018",">1018",">1017",">1014"]
[null,"表面电阻","D257","Ω.平方",">1018",">1016",">1017",">1015",">1014"]
[]
["*耐盐雾试验条件：5%氯化钠，温度35℃"]
["备注：表中所示为试验平均值，不能作为规范，仅供参考。"]

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