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Jiangsu Duopusen Chemical Technology Co., Ltd.

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02
2019-07

How to choose coating for steel structure anti-corrosion

2019-07--02
Whenthesteelstructureisexposedtotheenvironment,corrosionisinevitable,especiallythecommonrust.Underthechemistryoftheaggressivemedium,goodsteelwillproducevariouscorrosion.Asfarasthecurrentaggressivemediaareconcerned,therearethreetypesofacidcorrosion,alkalicorrosionandsaltcorrosion.Ifitisdividedaccordingtoitsdifferentforms,itcanbedividedintotwocategories:liquidphasecorrosionandgasphasecorrosion.Inaddition,amongenvironmentalfactors,atmospherichumidity,rain,atmosphericdustandtemperaturewillalsoactonthesurfaceofthesteel,andallcontactsurfaceswillcausecorrosionofthesteel.Differentsteelmaterialsconstitutedifferentmetalelements,andthecorrosionmechanismisalsoverydifferent.Somearestronglyacidic,someareweaklyacidic,someareoxygenatedacidcorrosion,andofcoursesomeareacidcorrosion,andtheseareDifferentacids,asthetemperaturecontinuestochange,thedegreeofcorrosionisalsoverydifferent,butthehigherthetemperature,thestrongerthedegreeofcorrosivity.Theacidcorrosionresistantanticorrosivepaintsolutionismadeupofaninorganicpolymerchelatesynthesisfilmsolution,whichhasasiloxy-Si—O—Si—bondasthebase,graftedwithanorganicalkylsidechainasanauxiliary,andthehydroxylgroupisend-chainchelated.Membrane,theanti-corrosivepaintmolecularbondhasexcellentanti-corrosionternarysynergyeffectonthechelatinghydroxylgroupandalkylgrouponthesiliconatom,thesolutionstabilityisstrong,theinfluenceontheinteriorofthepolymerisalleviated,andthefilmformingmaterialisdenser.Strongadhesionandhightemperatureresistance.Itcanbeusedtopreventthecorrosionofthesteelframestructureoftheworkshop,suchasuniformcorrosion,unevencorrosion,point(pit)corrosion,stresscorrosion,hydrogenembrittlementandothermetalcorrosion,completelysolvethestresscorrosionandhydrogenembrittlementofthesteelframestructureoftheworkshop.Inthecaseofdeformationprecursors,brittlefracturesoccursuddenly,preventingtheonsetofrisksandensuringthesafetyofindustrialproduction.
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02
2019-07

What are the characteristics of glass flakes?

2019-07--02
Glassflakeclayisanindispensablerawmaterialfortheproductionofheavy-dutyanti-corrosioncoatings,pearlescentpigmentsandplasticproducts.Itcanbeusedinanti-corrosionfieldstosignificantlyimprovetheanti-corrosionperformanceofcoatingsandextendtheservicelifeofarticles.Itisusedtomakelusterofpearlescentpigmentsandglass-scalepearlescentpigments.Itisfarsuperiortopearlescentpigmentsmadeofnaturalmicaandsyntheticmica,andhasthefunctionsofanti-corrosionandanti-ultravioletradiation.Itcanbeusedintheplasticfieldtoincreasethestrengthofplasticproductsandpreventthethermaldeformationofprecisionpartsmadeofthermoplastics.Itsspatialstability.Glassscaleclaycharacteristics:1.Glassflakescanpreventtheerosionofbasematerialsbywatervaporandchemicalsolvents.Thedegreeofchemicalresistanceofthesubstrateorcoatingvarieswiththeglassrawmaterialchosen,andtheglassflakescomposedofC-glasshaveexcellentchemicalresistance.2,duetotherelativelylargestretchingcoefficientwiththebasematerialsuchassteelandcement,theresinlayeriseasilycrackedanddetachedundertheconditionofthermalshock,andtheglassflakecanformaheatstablelayer,therebypreventingthecrackingofthesubstrate.Andpeelingoff.3,goodtemperatureresistance.Theuseofglassflakeliningsis20-40°Chigherthanthatofsimilarresincoatings,soitiscommonlyusedinpetroleumpipelines,hotwaterpipelines,andheat-resistantchemicalplants.4,glassscaleshaveasmallcoefficientofthermalexpansion.5.Thecoatingcontainingglassflakesismuchharderthantheepoxyorpolyesterresinlayerwithoutglassflakes,soithashighsurfaceabrasionresistance.6,goodcompatibility,canbecombinedwithavarietyofresinanti-corrosioncoatings.
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