Izembozo ezithwala amanziuhlobo olukhulu kakhulu lobuchwepheshe bokumboza olusetshenziswa emhlabeni wonke futhi kulindeleke ukuthi luqhubeke nokukhula njengephesenti lemakethe yokumboza iyonke. Ngo-2022,usayizi wemakethe yomhlaba wonkeukuhlanganiswa kwezembozo zamanzi kulindeleke ukuthi kube ngaphezu kwamaRandi ayizigidigidi eziyi-146 zamaRandi. Ukukhula okukhulu kungenxa yokwanda kwenani emakethe yokwakha nezimoto kanyeama-acrylicnjengohlobo olulodwa olukhulu kunawo wonke lwesistimu ye-resin ethwala amanzi emele ngaphezu kwama-80% emakethe iyonke ethwala amanzi.

Lena yi-Athena. I-MIT-IVY INDUSTRY igxile kakhulu ekupendeni kwezimboni okusekelwe emanzini, ngiyazi ukuthi ufuna imikhiqizo yokusekela ubuchwepheshe esezingeni eliphezulu, eshibhile kanye nekhwalithi enhle, sinesitifiketi se-ISO, ikakhulukazi ikhathalogi yomkhiqizo enentengo. Sikholelwa kuphela kwikhwalithi ephezulu,

Futhi ngokwaneliseka kwamakhasimende ethu. Uma ufuna ukubuza, sicela ungithinte. ️ Xhumana Nathi:

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Amandla okushayelaUkusetshenziswa okwengeziwe kwezimbozo ezithwala amanzi kuhlanganisa:

• I-VOC ephansi
• Kulula ukuhlanza ezimweni eziningi
• Ukwehla kwengozi yomlilo
• Izindleko zomshuwalense eziphansi
• Ukusetshenziswa kwamandla okuphansi kwe-izembozo ezibhakiwengenxa yesidingo somoya omncane wokwenza izimonyo kuhhavini
• Isidingo sokwehla kwamazingauphethiloliizinto ezisekelwe kuzo.

Njengoba isihloko se-Prospector sikaMeyi, 2014 sikhulumaUkugeleza, Ukulinganisa kanye nokulawula ukugoba kwe-Viscosity ezimbozweni ezisekelwe emanzinikubonisa ukuthi, izinhlobo ezimbili ezinkulu kakhulu zokugqoka okugeleza emanzini zifaka phakathiokuncishiswa ngamanzifuthii-latex, lapho iningi lezingubo ezibhakiwe liwela esigabeni sokuqala kanti iningi lezingubo zokwakha lingaphansi kwesigaba sesibili. Igama elithiokuncishiswa ngamanziisetshenziselwa ama-resin enziwe ngesinyibilikisi futhi ancishiswe emanzini ukuze kwakheke ukuhlakazeka kwe-resin emanzini.I-LatexNgakolunye uhlangothi, ama-resin alungiswa nge-emulsion polymerization emanzini.

Izimo ezimbi zokusebenzisa izembozo ezitholakala emanzini zifaka:

• Ukuncika okuphezulu kwesilinganiso sokuhwamuka komswakama ohlobene
• Ukushisa okuphezulu kokuhwamuka kwamanzi kudinga ama-2260 J/g ngamanzi futhi isibonelo ama-373 J/g kuphelaI-2-butoxyethanol, isetshenziswa kakhului-cosolvent
• Ijika lokunciphisa i-viscosity elingelona eliqondile lezingubo ezisebenzisa ama-resin ancishiswa ngamanzi
• Ukuncika okuphezulu kokugeleza kanye nokubukeka komswakama ohlobene
• Ukucindezeleka okukhulu kwamanzi ebusweni (ukumanzisa okuncane) kudinga ukwengezwaama-surfactantokuyinto ezimweni eziningi evimbela ukumelana nomswakama
• Izembozo eziphuma emanzini zingcolisa kakhulu kunezembozo ezizalwa zi-solvent ngakho-ke zidinga izitsha ezifakwe uthango, ipulasitiki noma insimbi engagqwali ukuze kugwenywe ukugqwala
• Izembozo eziphuma emanzini zivame ukuvela ezisetshenziswa ezibhakiwe njengoba ukwakheka kwefilimu kuqala ukwenzeka ngaphambi kokuba amanzi aphele efilimini (bheka Ithebula I)

Kodwa-ke intuthuko eqhubekayo kwisayensi yezinto ezibonakalayo ukufaka izinto ezintsha kumakhemikhali e-resin, ama-surfactants,izinto zokumanzisafuthiizinto zokugelezakuzosiza ekukhuliseni ukukhula okuqhubekayo kwezimbozo ezitholakala emanzini.

Umfanekiso I umele izigaba ezahlukene zokomiswa kohlelo lopende olusekelwe ku-latex. Isigaba sokuqala sihilela ukuhwamuka kwamanzi. Isigaba sesibili sihlanganisa ukuhwamuka okuqhubekayo kwamanzi kanye ne-cosolvent kuze kufike lapho izinhlayiya ze-latex zithintana khona futhi ziqale ukuhlangana ukuze zakhe ifilimu eyomile kancane.

Isigaba sokugcina sihilela ukuhlangana okuqhubekayo kanye nokwelashwa (ohlelweni oluxhumene) ukuze kwakheke ifilimu yopende enamathelayo epholile neyomile.

Esinye sezici ezibalulekile ekusetshenzisweni kwezimbozo ezithwala amanzi yindima ekhulisiwe edlalwa umswakama kanye nokushisa ekusetshenzisweni nasekulungisweni kwalezi zimbozo. Isibonelo, ukuze kuhlinzekwe ngezakhiwo zokusetshenziswa ezamukelekayo, kokubili izinga lokushisa kanye nomswakama kumele kulawulwe ngokucophelela njengoba kuboniswe kuMfanekiso II. Umphumela womswakama ezimbozweni eziqukethe i-solvent yamanzi-organic awunakunakwa.

Isibonelo, izinga lokuhwamuka kwamanzi (E) elihlobene (i-E) ku-0 - 5% RH ku-25°C lingu-0.31, kodwa ku-100% RH i-E ingu-0. I-E ye-2-butoxyethanol, i-cosolvent esetshenziswa kakhulu, ingu-0.077. Ku-RH ephansi, amanzi ayahwamuka ngokushesha futhi ngaleyo ndlela isilinganiso se-2-butoxyethanol emanzini siyanda; okuphambene nalokho kuyiqiniso lapho kunomswakama ophezulu.

Uma kusetshenziswa izembozo ezithwala amanzi, uma umswakama unganakwa, kuzovela ukuhlukahluka kwezakhiwo zokusetshenziswa kanye nokubukeka. Isibonelo, uma izinga lokushisa ekusetshenzisweni unyaka wonke lingu-70° – 80° F, ukusetshenziswa okomile (ukulahlekelwa ukugeleza) kuzoholela ezinyangeni zasebusika ngenxa yomswakama ophansi ikakhulukazi ezindaweni ezibandayo kanye nokugeleza ngokweqile kuzobonakala ezinyangeni zasehlobo (umswakama ophezulu). Isibonelo sesimo sakamuva ukuthi cishe ku-65% Umswakama Ohlobene/25 °C, isembozo esithwala amanzi esiqukethe i-10.6% 2-butoxyethanol yama-volatiles, izinga lokuhwamuka kwamanzi kanye ne-2-butoxyethanol lilingana. Lomswakama ohlobene ubizwa ngokuthi i-Critical Relative Humidity.

Umfanekiso II Ukusetshenziswa Kokuncika Kwezimbozo Ezitholakala Emanzini Kumswakama Nasekushiseni.

Ithebula I libonisa ukuncika okukhulu kokumbozwa kwamanzi ekuqhekekeni kwefilimu ehlukahlukene uma kuqhathaniswa nokumbozwa okuzelwe yi-solvent.

Ithebula I Ubukhulu Befilimu Ebalulekile Yokugqama Kuma-Micron, Izembozo Zemvelo, i-Wiley-Interscience, 2007, uZeno W. Wicks Jr., uFrank N. Jones, uS. Peter Pappas, uDouglas A. Wicks

Izembozo ezithwala amanzi zifaka izinhlobo eziningi ze-resin ezifanai-acrylic,i-alkyd,i-urethane,i-polyester,i-epoxy,i-fluoropolymer, impuphu ephuma emanzini kanye namakhemikhali okwelapha okuhlanganisaukwelashwa kwe-UV,i-aminoplast, i-urethane,i-epoxy-polyamide,i-oxidativefuthii-thermoplastic eyomile emoyeniizinhlobo. Njengoba iThebula II libonisa, usayizi wezinhlayiya kanye nokwakheka kwezinhlayiya (isb. igobolondo eliyinhloko) nakho kunegalelo ezimpahleni zefilimu zokugcina zengubo. Ngamafuphi, uma izinkinga ezihlukile ezihlobene nokusetshenziswa kwengubo ephuma emanzini sezicatshangelwe ngokugcwele zinikeza ukusebenza okuhle kakhulu ezinhlotsheni eziningi zezicelo.

Ithebula II – Izici Zezinhlayiya Ezihlukahlukene Ezisekelwe Emanzini

I-Prospector ibala inani labaphakeli bezinhlayiya zamanzi, ama-surfactant, ama-wetting kanye nama-flow agent ukuze kuhlangatshezwane nezidingo ezahlukahlukene.

Uhla Lwethu Oluphelele Lwezipende Zezimboni Ezisekelwe Emanzini Nezimbozo.

• Amaphakethe ama-2 e-Epoxy Primer Black Matt

• Ukuqeda kwe-Acrylic Aliphatic Polyurethane Okucwebezelayo

• Ukuqeda kwe-Acrylic Polyurethane

• I-Alkyd

• I-Alkyd Black

• I-Alkyd Thinner

• I-primer ye-Red Oxide Engagqwali

• I-Black Primer

• Isivali sokuphonsa

• Okumpunga kwamalahle

• Isembozo Sokuqeda i-Epoxy

• I-Epoxy Primer

• I-Epoxy Thinner

• Upende Wokuqeda I-Epoxy Primer Cum Ophulukisa Ngokushesha

• I-Epoxy Zinc Phosphate Primer

• Umshini wokusika isisekelo

• Ukuqeda Okungamelani Nokushisa

• Ijazi Lokuqeda le-Polyurethane

����Imikhiqizo esiyinikezayo:

Ama-Berger Paints, i-Kansai Nerolac, i-Asian PPG, i-AkzoNobel

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