Definition
Solvent-basedwoodcoatingsrefertoobjectsthatarecoatedonthesurfaceofanobjectandadherewelltothebasematerialandformacompleteandtoughprotectivefilm.Solvent-basedwoodcoatingsaremadeofpetroleumsolvents,toluene,xylene,butylacetate,cyclohexanone,etc.assolvents,syntheticresinsasbasematerials,combinedwithingredients,pigments,etc.,afterdispersionandgrinding.
Solvent-basedwoodcoatingshavehighfilmhardness,wearresistance,corrosionresistance,lowtemperatureresistance,strongdissolvingpower,andmoderatevolatilizationspeed.Theyarecommonlyuseddecorationmaterialsintheconstructionindustry.Therearemanytypesofsolvent-basedwoodcoatings.Commonlyusedarepolyurethanepaint,nitro,alkyd,andphenolic.Amongthem,polyurethanepaintiscalled"PUpolyesterpaint"inthemarket.Thecoatingfilmishardandwear-resistant,strongadhesion,andgoodheatresistance.Itiscurrentlythemostusedvarietyininteriordecorationandfurniturecoating;Simpleconstruction,fastdrying,easytorepair,furniturefactoryisoftenusedforfurnituresurfacecoating.Themostcommonlyusedinhomedecorationispolyurethaneresinpaint.
Precautionsforpurchase
1.Whenpurchasingsolvent-basedwoodcoatings,trytobuythematreputableregularstoresorspecialtystores.
2.Whenpurchasing,itisnecessarytorecognizethesignsontheproductpackaging,especiallythefactoryname,factoryaddress,productstandardnumber,productiondate,expirationdate,andunderstandingofproductinstructions.ItisbesttobuyproductsfromcompaniesthathavepassedISO14001andISO9000systemcertification.Theproductqualityofthesemanufacturersisrelativelystable.
3.Whenpurchasing,youshouldpurchaseproductsthatcomplywithGB18581-2009"LimitofHazardousSubstancesinSolvent-basedWoodCoatingsforIndoorDecorationandRefurbishmentMaterials"andhaveobtainedthe3Ccertificationmark.
4.Whenpurchasing,payattentiontowhethertheproductpackagingcontainerisdamagedorswollen.Whenbuyingsolvent-basedwoodcoatings,youcanshakeittocheckwhetherthereiscementation.Coatingswiththesephenomenacannotbepurchased.
5.Beforeuse,openthecantocheckwhetherthepainthasdelamination,sinking,agglomerationandcementation.Ifitisstillunevenafterstirring,itcannotbeused.
6.Coatingconstructionisalsoaveryimportantlink.Theproportioningandconstructionshouldbecarriedoutinstrictaccordancewiththerequirementsoftheproductconstructionmanual.Solvent-basedwoodcoatings(especiallytwo-componentorthree-component)shouldbestrictlyfollowedTheproportioningingredientsrequiredbythefactoryshallbemixedevenlybeforeconstruction.
7.Theconstructionenvironmentshouldbeventilated,especiallysolvent-basedwoodcoatings.Iftheproducthasrequirementsfortheconstructionenvironment,itmustbecarriedoutaccordingtotherequirements.
Mainhazardoussubstances
Mostofthesolvent-basedwoodcoatingsusedforinteriordecorationuseorganicmatterasthesolvent.Xylenesolventsarecommonlyusedsolventsinthepaintindustryduetotheirstrongdissolvingpowerandmoderatevolatilizationspeed.
Type,compositionandpropertiesofwoodcoatings.Themainvolatileorganiccompounds,benzene,toluene,xylene,etc.,areharmfulsubstancesthatcancauseindoorairqualitytodeclineduringconstructionanduse,andmayaffecthumanhealth.
1.Volatileorganiccompounds
Volatileorganiccompounds(VOC)willpollutetheenvironmentandincreasetheloadofindoororganicpollutants.Severelycauseheadache,sorethroatandothersymptoms,andendangerhumanhealth.
2.Benzene,toluene,xylene
Paintmanufacturershaverarelyusedbenzeneasasolvent.Benzeneinwoodcoatingsismainlybroughtinbytolueneandxyleneasimpurities,Thelevelofbenzenecontentisrelatedtotheproductionprocessoftolueneandxylene.
Hazards
Consideringthetype,compositionandpropertiesofwoodcoatings,themainharmfulsubstancesarevolatileorganiccompounds,benzene,tolueneandxylene,freetoluenediisocyanateandsolublelead,Cadmium,chromiumandmercuryandotherheavymetals.Intheprocessofconstructionanduse,theindoorairqualitywilloftendecrease,whichwillhaveacertainimpactonhumanhealth.Volatileorganiccompounds(VOC)notonlypollutethequalityoftheenvironment,butalsoincreasetheloadofindoororganicpollutants.Inseverecases,theycancauseheadaches,sorethroats,andendangerhumanhealth;BenzenehasbeenconfirmedbytheInternationalCancerResearchCenterItisahighlytoxiccarcinogen,whichmainlyaffectsthehumanhematopoieticsystem,nervoussystem,andirritatestheskin;freetoluenediisocyanate(TDI)isahighlytoxicinhalationpoison,whichhasaccumulationandlatencyinthehumanbody.Itisalsoamucosalirritant,whichhasastrongstimulatingeffectontheeyesandrespiratorysystem,andcancauseallergicasthma.Inseverecases,itcancausesuffocation,etc.;solublelead,cadmium,chromium,mercuryandotherheavymetalsolublesareharmfultothehumanbodyObvioushazards.Excessiveleadcandamagenerves,hematopoieticandreproductivesystems,especiallychildren’sgrowthanddevelopmentandintellectualdevelopment.Long-terminhalationofcadmiumdustcandamagekidneyorlungfunction.Long-termskincontactwithchromiumcompoundscancausecontactdermatitisoreczema.MercuryChronicpoisoningmainlyaffectsthecentralnervoussystem.