3MHFE-71DE清洗剂Introduction产品简介3M清洗剂HFE-71DE是由HFE-7100（九氟丁基***）和反式二***组成的共沸物。HFE-71DE是真正的共沸物，气相和液相具有相同的成分组成。HFE-71DE主要用于中等污物的清洗或者脱脂以及作为特殊溶剂使用。主要用于替代氟利昂对臭氧有***的物质。HFE-71DE安全暴露极限可以参考HFE-7100的750ppm暴露极限以及反式二***的200ppm的暴露极限。由于加了反式二***，其溶解能力得到提高，而且HFE-71DE的表面张力很低，不燃，沸腾时成分稳定，所以HFE-71DE可以用于浸没或者气相清洗。HFE-71DE共沸物具有以上特点，也用途涂层和润滑油的溶剂。3MNovec71DEEngineeredFluidisahydrofluoroether,MethylNonafluorobutylEther(***F9OCH3),inanazeotropeformulationwithtrans-1,2-dichloroethylene(t-DCE).Thismixtureisatrueazeotrope,withc***tantvaporandliquidcompositionatitsboilingpoint.Thisfluidisidealformedium-dutycleaninganddegreasingtasks,aswellasspecialtysolventapplicati***,andisintendedtoreplaceozone-depletingmaterialsinmanyapplicati***.Ithaszeroozonedepletionpotentialandotherf***orableenvironmentalproperties(seeTable2).Novec71DEfluidhasatime-weighted***erageexposureguidelineof750ppm(eighthour***erage)forthe3MNovec7100EngineeredFluidcomponent,and200ppm(eighthour***erage)fortrans-1,2-dichloroethylene(t-DCE).TheseexposureguidelinessuggestthereisalargemarginofsafetyforuseofNovec71DEfluidinitsintendedcleaningapplicati***.Theincreasedsolvencyandlowsurfacetension,nonflammabilityandc***tantcompositionduringboilingofNovec71DEfluidmakeitidealforimmersionandvapordegreasingapplicati***.Thesepropertiesalsomaymaketheazeotropeidealforcertaincoatingandlubricantdepositionapplicati***whereincreasedsolvencyisrequired.TypicalApplicati***典型应用Cleaning,rinsinganddryingagent清洗、漂洗和干燥的溶剂Cleaningofoils,greases,waxesSpecialtysolventapplicati***,includingcoatings特殊溶剂物理化学性质TypicalPhysicalProperties–Table1性质HFE-71DECFC-113HCFC-141BAK-225VertrelXF沸点℃4048325439冰点℃-24-35-103-131N/A闪点1.371.561.231.551.41液体密度g/ml@25℃16.617.319.316.215.2KB值27315631N/A粘度cps@25℃0.450.680.430.590.49蒸汽压mmHg383331569290464挥发热cal/g@bp483553.434.643.3环境及安全性质EnvironmentalandSafetyProperties-Table2性质HFE-71DECFC-113HCFC-141BAK-225VertrelXF臭氧***潜值ODP00.80.10.030温室效应系数GWP1606000700180/6201050闪点无无无无无)