Iingubo ezisekelwe emanzini vs

Iingubo zihlala zithatha igama lazo kwi-binder, okanye i-resin, apho zenziwe khona. I-epoxies, i-alkyds kunye ne-urethanes yonke imizekelo ye-resin enika i-coating igama labo. Kodwa ezi ayizizo kuphela iindawo ezenza isambatho. Ukongeza kwizongezo, ezinokuboleka isigqubuthelo kwiipropati ezithile zokusebenza, kunye ne-pigments eboleka umbala, iingubo nazo ziqulethe i-element enyibilikayo yonke ibe lulwelo ukuze isetyenziswe lula.

Le arhente yokunyibilikisa ithatha imo yamanzi okanye esinye isinyibilikisi sekhemikhali. Yiyo loo nto amagama athi "asekwe emanzini" kunye "ne-solvent-based". Luluphi uhlobo lwemveliso olulungele umsebenzi luya kuxhomekeka kwiimeko. Ngokuqhelekileyo, enye ayikho ngcono kunomnye, kodwa benza ngokwahlukileyo kwiimeko ezahlukeneyo. Ngokufanelekileyo, zombini iinketho ziya kubakho ecaleni-nge-cala kwindawo yezixhobo zokugquma.

I-COATINGS EZISEKELWE AMANZI

Iipeyinti ezisekelwe emanzini zenza malunga neepesenti ezingama-80 zeepeyinti zasekhaya ezithengiswa namhlanje ngokutsho kwePaint Quality Institute, umbutho wokucebisa nokuvavanya ipeyinti. Akungabazeki ukuba oku kuyingxenye enkulu ngenxa yezinto ezikhangayo eziphambili zeemveliso ezisekelwe emanzini, nokuba yipeyinti yendlu yangaphakathi okanye i-heavy-duty-duty-protection coating: amavumba ambalwa.

Xa usebenza kwiindawo ezivaliweyo okanye ezingenamoya omdaka, ukujika kwezinto ezinyibilikayo zibe ngumphunga kusenokungakhululeki kubasebenzi okanye kude kube yingozi kwimpilo yabo. Ngesi sizathu, iiprojekthi ezininzi ezifana nezo zibandakanya iitanki zokugcina amafutha kunye neemoto zetanki zikaloliwe zisebenzisa i-coatings esekwe emanzini. Ezi zikwanciphisa ukuxinana kwezinto ezinokutsha ezakha kwindawo evaliweyo. Oko akuthethi, nangona kunjalo, ukuba ukusetyenziswa kweengubo ezisekelwe emanzini kuyayigatya imfunekoI-OSHA yamkele amanyathelo okhuseleko kwindawo evaliweyo.

Ukuthotyelwa kokusingqongileyo sesinye isizathu esiqhelekileyo sokukhetha ukusebenzisa isambatho esisekelwe emanzini. Izinyibilikisi ezininzi ziyajika zibe ngumphunga zibe koko kwaziwa ngokuba ziikhompawundi eziphilayo eziguquguqukayo, okanye iiVOCs. Oorhulumente belizwe, urhulumente kunye noorhulumente basekhaya bahlala belawula ii-VOCs ngokunciphisa ukuba angakanani amashishini avunyelwe ukuba akhuphe ngexesha elinikiweyo. II-EPA ibeka imithetho yelizwekwii-VOCs, kodwa amanye amazwe aqinise izithintelo nangakumbi, efuna iinzame ezidibeneyo zokunciphisa ukukhutshwa kwazo.

Iingubo ezisekelwe emanzini aziqulathanga izinyibilikisi zero, nangona kunjalo. Uninzi luqulathe oko kubizwa ngokuba zi-co-solvents, izinyibilikisi ezikhoyo kwiindawo ezisezantsi kwaye zithetha ukunceda ukutyhala amanzi aseleyo ukuba aphume kwi-co-loating njengoko isoma. Kodwa ke, kuba ii-coatings ezisekwe emanzini zinokuba akukho, okanye zincinci kakhulu izinyibilikisi, ziyindlela entle yokwehlisa imveliso ye-VOC yeshishini. Kwezinye iinkampani, oku kunokuthetha ukuchitha imali encinci kwiingcebiso zokuthotyelwa kokusingqongileyo. Okanye bagcine ekuhlawuleni izohlwayo ezibalulekileyo ngokugqitha kwizabelo zeVOC.

I-SOLVENT-BASED Coatings

Ipeyinti esekwe kwi-solvent yenziwe ngezinto ezinyibilikisayo ezenzelwe ukuba zibe ngumphunga ngokusabela kweekhemikhali neoksijini. Ngokuqhelekileyo, ukuhambisa umoya ojikeleze i-solvent-based coating kuya kunceda ukukhawuleza ukuphendula, ukunciphisa amaxesha omisa.

Ezi zambatho zinenzuzo enye enkulu ngaphezu kweengubo ezisekelwe emanzini. Abachaphazeleki kancinci kwiimeko zokusingqongileyo ezifana nobushushu kunye nokufuma ngexesha lesigaba sokunyanga. Ukufuma kunokuthintela amanzi akwintonga esekwe emanzini ukuba angabi ngumphunga, nto leyo eyenza ukuba angasebenzi kwezinye iimeko zemozulu.

Iingubo ezisekelwe emanzini zikwanikezela umngeni kwinqanaba lokulungiselela umphezulu weprojekthi yokugquma. Amanzi, ngelixa ethembisa indawo ye-solvents kwezinye iimeko, ikwayinxalenye ephambili yenkqubo yokubola, isizathu esipheleleyo soshishino lwee-coatings kwishishini kwindawo yokuqala. Ukuba amanzi adibana ne-substrate ngaphambi kokuba kufakwe i-coating, ukurusa kwamabala kunokuqala ukwenzeka. Ukuze kuqinisekiswe ukuba oku akunjalo, i-coatings yamanzi kufuneka yenziwe ukuze onke amanzi akhutshwe ngefilimu engaphezulu ngaphambi kokuba i-corrosion yenzeke. Oku akukona ukuqwalaselwa kunye neengubo ezisekelwe kwi-solvent.

Ngoko ke, isishwankathelo, nangona i-coatings esekwe emanzini inokuba lukhetho olulungileyo kwimisebenzi ebandakanya izithuba ezivaliweyo kunye nokusetyenziswa okuqhubekayo kweengubo, azikho ngaphandle kwamabala azo abuthathaka. Imisebenzi evulekileyo, kwiimeko ezifumileyo, ezifana nezo zihlala zifumaneka kwiiprojekthi zokuphinda zifakwe kwiziseko ezingundoqo, zisenokufumana inzuzo kwi-coating efanelekileyo. Ukuba ungathanda ukuxoxa ukuba loluphi uhlobo lwemveliso olunokuba lulungele iprojekthi yakho, singathanda ukuva kuwe.Qhagamshelana neMit-ivy industry Coatingsnamhlanje. Okanye, ukuba ufuna ukujonga umgca wethu wemveliso opheleleyo kuqala, khuphela ikhathalogu yethu yemveliso apha ngezantsi.