Izingubo ezisekelwe emanzini vs

Izindwangu ngokuvamile zithatha igama lazo ku-binder, noma i-resin, ezenziwe ngayo. Ama-epoxies, ama-alkyds nama-urethanes yizo zonke izibonelo zama-resin anikeza ukumbozwa igama lawo. Kodwa lezi akuzona kuphela izingxenye ezakha i-coating. Ngaphezu kwezithasiselo, ezingaboleka i-coating izici ezithile zokusebenza, kanye ne-pigments eboleka umbala, izigqoko nazo ziqukethe isici esincibilikisa konke kube uketshezi ukuze kusetshenziswe kalula.

Le nto eyenza uketshezi ivamise ukuthatha isimo samanzi noma esinye isincibilikisi samakhemikhali. Ngakho-ke amagama athi “asekelwe emanzini” kanye “ne-solvent-based”. Iluphi uhlobo lomkhiqizo olulungele umsebenzi luzoncika ezimweni. Ngokuvamile, eyodwa ayingcono kunomunye, kodwa yenza ngendlela ehlukile ezimeni ezahlukene. Ngokufanelekile, zombili izinketho zizoba khona zihlangene ku-arsenal yochwepheshe bokunamathela.

IMIGWEBO ESEKELWE AMANZI

Opende abasuselwe emanzini benza cishe amaphesenti angu-80 opende basendlini abadayiswa namuhla ngokusho kwe-Paint Quality Institute, inhlangano elulekayo nokuhlola upende. Akungabazeki ukuthi lokhu kuyingxenye enkulu ngenxa yezinye zezinto ezikhangayo eziyinhloko zemikhiqizo esekelwe emanzini, kungakhathaliseki ukuthi upende wendlu yangaphakathi noma i-heavy-duty-protection coating: iphunga elincane.

Uma usebenza ezindaweni ezivalekile noma ezingenawo umoya ohlanzekile, ukuhwamuka kwezincibilikizo kungase kungaziphathi kahle abasebenzi noma kube yingozi empilweni yabo. Ngenxa yalesi sizathu, amaphrojekthi amaningi afana nalawo ahlanganisa amathangi okugcina uphethiloli kanye nezimoto zamathangi kaloliwe asebenzisa okokunamathela emanzini. Lokhu futhi kunciphisa ukugcwala kwezinto ezivuthayo ezakha endaweni evalekile. Lokho akusho, nokho, ukuthi ukusetshenziswa kwezindwangu ezisekelwe emanzini kulahla isidingoI-OSHA ivume izinyathelo zokuphepha emkhathini.

Ukuthobela imvelo kungenye isizathu esivamile sokukhetha ukusebenzisa i-coating yamanzi. Izinyibilikisi eziningi ziyahwamuka zibe yilokho okwaziwa ngokuthi izinhlanganisela eziphilayo ezishintshashintshayo, noma ama-VOC. Ohulumeni kazwelonke, izifundazwe kanye nohulumeni basekhaya bavame ukulawula ama-VOC ngokukhawulela ukuthi angakanani amabhizinisi avunyelwe ukukhipha ngesikhathi esinikeziwe. II-EPA ibeka imithetho kazwelonkekuma-VOC, kepha ezinye izifundazwe ziye zaqinisa imikhawulo nangaphezulu, okudinga imizamo ebumbene yokunciphisa ukukhishwa kwazo.

Izindwangu ezisekelwe emanzini aziqukethe izincibilikisi eziyiziro, noma kunjalo. Eziningi ziqukethe lokho okubizwa ngokuthi ama-co-solvents, izincibilikisi ezikhona ekugxiliseni okuphansi futhi okuhloswe ukusiza ukusunduza amanzi asele ngaphandle kwento enamathelayo njengoba yoma. Kodwa njengoba izindwangu ezisekelwe emanzini zine-cha, noma izincibilikisi ezincane kakhulu, ziyindlela enhle yokwehlisa umkhiqizo we-VOC webhizinisi. Kwezinye izinkampani, lokhu kungasho ukuchitha imali encane ekwelulekeni kokuthotshelwa kwemvelo. Noma ubagcine ekukhokheni izinhlawulo ezinkulu ngokweqa izabelo ze-VOC.

IZIGQEPHU EZISAXULULISILE

Opende abasuselwa ekuncibilikeni bakhiwe ngama-agent ancibilikisayo ahloselwe ukuhwamuka ngokusabela kwamakhemikhali nomoya-mpilo. Ngokuvamile, ukuhamba komoya ozungeze i-solvent-based coating kuzosiza ukusheshisa ukusabela, ukunciphisa izikhathi zokumisa.

Lezi zingubo zinenzuzo eyodwa enkulu ngaphezu kwezingubo ezisekelwe emanzini. Azikwazi ukungenwa kalula yizimo zemvelo ezifana nezinga lokushisa kanye nomswakama ngesikhathi sesigaba sokwelapha. Umswakamo empeleni ungavimbela amanzi asongwengwezi olusekelwe emanzini ukuthi angahwamuki, okuwenza angasebenzi kwezinye izimo zezulu.

Izindwangu ezisekelwe emanzini nazo zinikeza inselele esigabeni sokulungiselela phezulu sephrojekthi yokuhlanganisa. Amanzi, nakuba ethembisa esikhundleni sezincibilikisi kwezinye izimo, ayingxenye ebalulekile yenqubo yokugqwala, isizathu esiphelele semboni yokumboza izimboni kwasekuqaleni. Uma amanzi ethintana ne-substrate ngaphambi kokuba kusetshenziswe ukugqwala, ukugqwala kwamabala kungase kuqale ukwenzeka. Ukuze kuqinisekiswe ukuthi lokhu akunjalo, izimbotshana ezisekelwe emanzini kufanele zenziwe ukuze wonke amanzi akhishwe ngefilimu engaphezulu ngaphambi kokugqwala. Lokhu akukhona ukucatshangelwa ngezingubo ezisekelwe ku-solvent.

Ngakho-ke, ngamafuphi, nakuba okokunamathela emanzini kungase kube inketho enhle yemisebenzi ehlanganisa izikhala ezivalekile kanye nokusetshenziswa kwezingubo eziqhubekayo, azikho ngaphandle kwamabala azo abuthakathaka. Imisebenzi ezindaweni ezivulekile, eziswakeme, njengalezo ezivame ukutholakala kumaphrojekthi wokuhlanganisa kabusha ingqalasizinda, isengazuza ekufakweni okufanele. Uma ungathanda ukuxoxa ngokuthi yiluphi uhlobo lomkhiqizo olungalungela iphrojekthi yakho, singathanda ukuzwa kuwe.Xhumana ne-mit-ivy industry Coatingsnamuhla. Noma, uma ufuna ukubheka umugqa wethu womkhiqizo ogcwele kuqala, landa ikhathalogi yethu yomkhiqizo ngezansi.