二甲基咪唑气相缓蚀性能研究及缓蚀配方设计

二甲基咪唑气相缓蚀性能研究及缓蚀配方设计AbstractIn this study, the corrosion inhibition performance of 2-methylimidazole

二甲基咪唑气相缓蚀性能研究及缓蚀配方设计 Abstract Inthisstudy,thecorrosioninhibitionperformanceof 2-methylimidazoleingasphasewasstudied.Theresultsshowed that2-methylimidazolehadgoodinhibitoryeffectonmetal corrosion,andtheinhibitionrateincreasedwiththeincreaseof concentration.Basedontheresearch,acorrosioninhibitor formulawasdesigned,whichhadgoodcorrosioninhibitioneffect onmetalmaterials.Thedesignedcorrosioninhibitorformula showedbroadapplicationprospectsinthefieldofmetalcorrosion protection. Introduction Metalcorrosionisacommonprobleminindustry.Itcan causehugeeconomiclossesandaffectthesafetyofproduction equipment.Therefore,theresearchofcorrosioninhibitorshas importantvalueandpracticalsignificance.Asanewtypeof corrosioninhibitor,2-methylimidazolehasreceivedextensive attentionduetoitsgoodstabilityandlowtoxicity.Inthisstudy, thecorrosioninhibitionperformanceof2-methylimidazoleingas phasewasstudied,andthecorrosioninhibitorformulawas designedbasedontheresearchresults. Experimentalsection Thegasphasecorrosioninhibitionexperimentwascarried outbyelectrochemicalimpedancespectroscopy(EIS).The corrosioninhibitionrateof2-methylimidazolewascalculated.In theformuladesignexperiment,2-methylimidazole,triazole, benzotriazole,andimidazolewereselectedascorrosioninhibitors, anddifferentconcentrationsoftheinhibitorswereaddedtothe electrolytetotesttheircorrosioninhibitionperformance.The optimalcorrosioninhibitorformulawasobtainedbycomparing theresultsofdifferentexperiments. Resultsanddiscussion TheEISresultsshowedthat2-methylimidazolehadgood inhibitoryeffectonmetalcorrosion,andtheinhibitionrate increasedwiththeincreaseofconcentration.Theoptimal concentrationof2-methylimidazolewasdeterminedtobe8 mmol/L.Theinhibitionrateof2-methylimidazolewashigherthan