Izembatho zamanziziwuhlobo olukhulu kunazo zonke lobuchwepheshe bokumboza obusetshenziswa emhlabeni wonke futhi kulindeleke ukuthi buqhubeke nokukhula njengephesenti lesamba semakethe yokumboza. Ngo-2022, i-usayizi wemakethe yomhlabayezingubo eziphuma emanzini kulindeleke ukuthi ibe ngaphezu kwamaRandi ayizigidi eziyizinkulungwane ezingu-146. Ukukhula okuyingxenye enkulu kungenxa yokwanda kwevolumu emakethe yezokwakha kanye nezimoto ngeama-acrylicsiwuhlobo olulodwa olukhulu kunazo zonke lwesistimu ye-resin etholakala emanzini emele ngaphezu kwama-80% emakethe yonke etholakala emanzini.

Lena i-Athena.MIT-IVY INDUSTRY esebenza kakhulu ngopende wezimboni osuselwe emanzini, ngiyazi ukuthi ufuna ikhwalithi enhle, intengo eshibhile nemikhiqizo yosekelo lobuchwepheshe, sinesitifiketi se-ISO, ikakhulukazi ikhathalogi yomkhiqizo enenani. Sikholelwa kuphela ezingeni eliphezulu,

Futhi ekwanelisekeni kwamakhasimende ethu. Uma ufuna ukubuza, ngicela ungithinte. ️ Xhumana nathi:

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Amandla okushayelaukusetshenziswa okwandisiwe kwe-coatings emanzini kuhlanganisa:

• I-VOC ephansi
• Ukuhlanza kalula ezimweni eziningi
• Ukunciphisa ingozi yomlilo
• Izindleko zomshwalense eziphansi
• Ukusetshenziswa kwamandla okuphansiizigqoko ezibhakiwengenxa yesidingo sikahhavini omncane wenza umoya
• Isidingo samazinga ehlile weuwoyela-based materials.

NjengoMeyi, i-athikili ye-Prospector ka-2014Ukugeleza, Ukulinganisa kanye nokulawulwa kwe-Viscosity kuma-coatings asekelwe emanzinikubonisa, amakilasi amabili amakhulu kunawo wonke enamathela emanzini ahlanganisaamanzi ancishiswafuthii-latex, ngobuningi bezingubo ezibhakiwe eziwela esigabeni sokuqala neziningi zezingubo zezakhiwo ezingaphansi kwesigaba sesibili. Igamaamanzi ancishiswaisetshenziselwa ama-resin enziwe ku-solvent futhi ancishiswe emanzini ukuze enze ukuhlakazeka kwe-resin emanzini.I-Latexama-resin ngakolunye uhlangothi alungiswa nge-emulsion polymerization emanzini.

Ukungalungi kokusetshenziswa kwe-coatings emanzini kuhlanganisa:

• Ukuncika okuphezulu kwezinga lokuhwamuka kumswakama ohlobene
• Ukushisa okuphezulu kokuhwamuka kwamanzi kudinga u-2260 J/g emanzini futhi isibonelo kuphela 373 J/g2-butoxyethanol, evame ukusetshenziswai-cosolvent
• Ijika lokuncishiswa kwe-viscosity engaqondile yezingubo zokumboza kusetshenziswa ama-resin ancishiswa amanzi
• Ukuncika okuphezulu kokugeleza nokubukeka kumswakama ohlobene
• Ukushuba okuphezulu kwamanzi (ukumanzisa okungenamandla) kudinga ukungezwaama-surfactantsokuyinto ezimweni eziningi ephazamisa ukumelana nomswakama
• Izindwangu ezitholakala emanzini zigqwala kakhulu kunezincibilikisiwe ezizalwa zincibilika futhi ngaleyo ndlela zidinga iziqukathi ezinomugqa, ipulasitiki noma insimbi engagqwali ukuze kugwenywe ukugqwala.
• Izembatho eziphuma emanzini zijwayele ukuvela ezicelweni ezibhakiwe njengoba ukwakheka kwefilimu kuqala ukwenzeka ngaphambi kokuba amanzi ahwamuke efilimini (bona Ithebula I)

Kodwa-ke ukuqhubeka okuqhubekayo kwesayensi yezinto ezibonakalayo ukufaka izinto ezintsha kumakhemikhali e-resin, ama-surfactants,ama-wetting agentsfuthiama-flow agentskuzosiza ukunika amandla ukukhula okuqhubekayo kokumbozwa kwamanzi.

Umdwebo I umele izigaba ezihlukahlukene zokomiswa kwesistimu kapende esekelwe ku-latex. Isigaba sokuqala sibandakanya ukuhwamuka kwamanzi. Isigaba sesibili sihlanganisa ukuhwamuka okuqhubekayo kwamanzi kanye ne-cosolvent kuze kube yilapho izinhlayiya ze-latex zithinta futhi ziqala ukuhlangana ukuze zenze ifilimu eyomiswa kancane.

Isigaba sokugcina sibandakanya ukuqhubeka kokuhlangana kanye nokwelapha (kuhlelo oluxhumene) ukwenza ifilimu kapende eselashiwe, eyomile enamathelayo.

Enye yezinto ezicatshangelwayo eziyinhloko ekusetshenzisweni kwezingubo eziphuma emanzini yindima ekhulayo yokuthi umswakama ngaphezu kwezinga lokushisa udlala ekusetshenzisweni nasekuphulukiseni lezi zingubo. Isibonelo, ukuze kuhlinzekwe izakhiwo zesicelo ezamukelekayo, kokubili izinga lokushisa kanye nomswakama kufanele kulawulwe ngokucophelela njengoba kubonisiwe kuMfanekiso II. Umphumela womswakama ezimbotsheni eziqukethe i-solvent yamanzi-organic awukwazi indiva.

Isibonelo, isilinganiso sokuhwamuka esihlobene (E) samanzi ku-0 - 5% RH ku-25°C singu-0.31, kodwa ku-100% i-RH i-E ingu-0. I-E ye-2-butoxyethanol, i-cosolvent evame ukusetshenziswa, ingu-0.077. Nge-RH ephansi, amanzi ahwamuka ngokushesha futhi ngaleyo ndlela isilinganiso se-2-butoxyethanol emanzini siyakhula; okuphambene kuyiqiniso lapho kunomswakama ophezulu.

Lapho kusetshenziswa izigqoko zamanzi, uma umswakama unganakwa, ukuhlukahluka kwezakhiwo zesicelo nokubukeka kuzophumela. Isibonelo uma izinga lokushisa onyakeni wokufaka isicelo lingama-70 ° - 80 ° F, ukufaka okomile (ukulahlekelwa ukugeleza) kuzoholela ezinyangeni zasebusika ngenxa yomswakama ophansi ikakhulukazi ezindaweni ezibandayo futhi ukugeleza ngokweqile kuzobonwa ezinyangeni zasehlobo (umswakama ophezulu) . Isibonelo sesimo sakamuva ukuthi cishe ku-65% Umswakama Ohlobene/25 °C, i-coating yamanzi equkethe u-10.6% 2-butoxyethanol we-volatiles, izinga lokuhwamuka kwamanzi kanye no-2-butoxyethanol kuyalingana. Lokhu kuswakama okuhlobene kubizwa ngokuthi i-Critical Relative Humidity.

Umfanekiso II Ukuncika Kwesicelo Sezingubo Eziphuma Ngamanzi Kumswakama kanye Nezinga Lokushisa.

Ithebula I libonisa ukuncika okukhulayo kwezingubo eziphuma emanzini ekuveleni kogqinsi obuhlukahlukene befilimu uma kuqhathaniswa nezingubo zokuzalwa ezincibilikayo.

Ithebula I-Critical Film Thickness for Popping in Microns, Organic Coatings, Wiley-Interscience, 2007, Zeno W. Wicks Jr., Frank N. Jones, S. Peter Pappas, Douglas A. Wicks

Izembatho zamanzi zihlanganisa izinhlobo eziningi ze-resin ezifanai-acrylic,i-alkyd,urethane,i-polyester,i-epoxy,i-fluoropolymer, impushana ephuma emanzini kanye namakhemikhali okwelapha okuhlanganisaUkwelashwa kwe-UV,i-aminoplasturethane,i-epoxy-polyamide,i-oxidativefuthiumoya owomile we-thermoplasticizinhlobo. Njengoba iThebula II libonisa, usayizi wezinhlayiyana kanye nokwakheka kwezinhlayiyana (isb. igobolondo eliwumgogodla) nakho kunomthelela ezinhlelweni zefilimu zokugcina. Kafushane, uma izinkinga eziyingqayizivele ezihlotshaniswa nokusetshenziswa kwezingubo zamanzi zicatshangelwa ngokugcwele zinikeza ukusebenza okuhle kakhulu ezinhlobonhlobo zezicelo.

Ithebula II – Izimpawu Zezinhlaka Ezihlukene Ezisekelwe Emanzini

I-Prospector ibala inani labahlinzeki bezinhlaka eziphuma emanzini, ama-surfactants, ama-ejenti wokumanzisa kanye nokugeleza ukuze ahlangabezane nezidingo ezihlukahlukene.

Ibanga Lethu Eliphelele Lamanzi Asuselwe Kwi-Industrial Paints & Coatings.

• 2 Pack Epoxy Primer Black Matt

• I-Acrylic Aliphatic Polyurethane Finish Glossy

• I-Acrylic Polyurethane Qeda

• Alkyd

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• I-Alkyd Thinner

• I-Anticorrosive Red oxide primer

• I-Primer emnyama

• Ukukhipha uphawu

• Amalahle ampunga

• I-Epoxy Qeda I-Coating

• I-Epoxy Primer

• I-Epoxy Thinner

• Ukwelapha Okusheshayo Kwe-Epoxy Primer Cum Finish Paint

• I-Epoxy Zinc Phosphate Primer

• I-Foundry thinner

• Ukumelana Nokushisa Qeda

• I-Polyurethane Finish Coat

���Imikhiqizo esiyihlinzekayo:

Berger Paints, Kansai Nerolac, Asian PPG, AkzoNobel

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