imikhiqizo

impahla yamakhemikhali

Ngokwesakhiwo samakhemikhali esihlukile, lolu hlobo lwe-ejenti yokulinganisa lunezigaba ezintathu eziyinhloko: i-acrylic acid, i-organic silicon ne-fluorocarbon.I-ejenti yokulinganisa i-ejenti yokwengeza evame ukusetshenziswa evame ukusetshenziswa, engenza ukumboza kube ifilimu elibushelelezi, elibushelelezi nelifana nenqubo yokomisa.Inganciphisa ngempumelelo ukushuba kwesimo se-coating liquid, ithuthukise izinga layo kanye nokufana kwekilasi lezinto.Ingakwazi ukuthuthukisa ukufinyeleleka kwesisombululo sokuqeda, ukunciphisa amathuba okuba namabala nokumaka lapho uxubha, ukwandise ukumboza, futhi wenze ifilimu ifane nemvelo.Ikakhulukazi ama-surfactants, ama-solvents ephilayo nokunye.Kunezinhlobo eziningi ze-ejenti yokulinganisa, futhi izinhlobo ze-ejenti yokulinganisa ezisetshenziswa ezimbotsheni ezahlukene azifani.Izincibilikisi zamaphuzu aphezulu abilayo noma i-butyl cellulose zingasetshenziswa kuma-solvent-based finishes.Emanzini - i-ejenti yokuqedela esekelwe ngama-surfactants noma i-polyacrylic acid, i-carboxymethyl cellulose

Isingeniso somkhiqizo kanye nezici

Ama-level agents ahlukaniswe kabanzi abe izigaba ezimbili.Enye iwukuba ngokulungisa i-viscosity yefilimu kanye nesikhathi sokulinganisa ukuze isebenze, lolu hlobo lwe-ejenti yokulinganisa ngokuvamile luyizincibilikisi ze-organic abilayo noma izingxube, njenge-isoporone, i-diacetone alcohol, i-Solvesso150;Okunye ngokulungisa izindawo ezingaphezulu kwefilimu ukuthi zisebenze, abantu abajwayelekile bathi i-ejenti yokulinganisa ibhekisa kakhulu kulolu hlobo lwe-ejenti yokulinganisa.Lolu hlobo lwe-Ejenti YOKWENZIWA INGABE ithuthela ngaphezulu kwefilimu ngokuhambisana okulinganiselwe, ithinta izici ezingaphezulu zefilimu ezifana nokushuba kwesimo sobuso, futhi lenza ifilimu ithole izinga elihle.

sebenzisa

Umsebenzi oyinhloko wokugcoba ukuhlobisa nokuvikelwa, uma kukhona ukukhubazeka kokugeleza nokulinganisa, akuthinti nje ukubonakala, kodwa futhi kulimaze umsebenzi wokuvikela.Njengokwakheka kwe-shrinkage okubangelwa ukushuba kwefilimu akwanele, ukwakheka kwamaphinikhodi kuzoholela ekumisweni kwefilimu, lokhu kuzonciphisa ukuvikelwa kwefilimu.Enkambweni yokwakhiwa kwe-coating kanye nokwakheka kwefilimu, kuzoba nezinguquko ezithile zomzimba nezamakhemikhali, lezi zinguquko kanye nemvelo yokugqoka ngokwayo, kuzothinta kakhulu ukugeleza nokulinganisa kwe-coating.
Ngemva kokufakwa kwe-coating, kuzovela izindawo ezintsha zokusebenzelana, ngokuvamile isixhumi esibonakalayo esiwuketshezi/esiqinile phakathi kwento enamathelayo ne-substrate kanye nesixhumi esibonakalayo se-liquid/gas phakathi kokumbozwa nomoya.Uma ukungezwani kobuso be-liquid/solid interface phakathi kwe-coating kanye ne-substrate kuphakeme kunokuqina okubucayi kwendawo engaphansi, ukunamathela ngeke kukwazi ukusabalala ku-substrate, okuzokwenza ngokwemvelo kukhiqizwe ukukhubazeka okufana ne-fisheye kanye nokuncipha. izimbobo.
I-EVAPORATION OF SOLVENT NGESIKHATHI SOKUSOMISA kwefilimu kuzoholela emazingeni okushisa, ukuminyana kanye nokushuba kwesimo phakathi kobuso nengaphakathi lefilimu.Lo mehluko wona uholela ekunyakazeni okunesiyaluyalu ngaphakathi kwefilimu, kwakha lokho okubizwa nge-Benard vortex.I-Benard vortex iholela emakhasini awolintshi;Ezinhlelweni ezine-pigment engaphezu kweyodwa, uma kukhona umehluko othile ekuhambeni kwezinhlayiya ze-pigment, i-Benard vortex ingase iholele embala ontantayo nezinwele, futhi ukwakhiwa okuqondile kuzoholela emigqeni yesilika.
INKQUBO YOKOmisa YEFILMI YOKUPENDI NGESINYE isikhathi IKHIQIZA EZINYE izinhlayiya ezingancibiliki COLLOIDAL, Ukukhiqizwa kwezinhlayiya ezingancibilikiyo COLLOIDAL kuzoholela ekwakhekeni kwe-gradient tension gradient, okuvame ukuholela ekukhiqizweni kwezimbobo zokushwabana efilimini kapende.NGESIBONELO, KUHLELO LOKUHLANGANISA LWE-CROSS-LINKD, LAPHO Ukwakheka KUQUKETHE I-RESIN EPHEZULU KWEYODWA, I-resin encane encibilika ingase yakhe izinhlayiya ze-colloidal ezingancibiliki njengoba i-solvent ishintshashintsha phakathi nenqubo yokomisa yefilimu kapende.Ngaphezu kwalokho, ekwakhiweni okuqukethe i-surfactant, uma i-surfactant ingahambisani nesistimu, noma inqubo yokomisa nge-volatilization ye-solvent, izinguquko zayo zokugxila ziholela ekushintsheni kokuncibilika, ukwakheka kwamaconsi angahambelani, nakho kuzokwakha indawo engaphezulu. ukungezwani.Lokhu kungase kuholele ekwakhekeni kwezimbobo zokushwabana.
Enkambweni yokwakhiwa kwe-coating kanye nokwakhiwa kwefilimu, uma kukhona ukungcola kwangaphandle, kungase futhi kuholele embobeni yokuncipha, i-fisheye kanye nezinye iziphambeko zokulinganisa.Lokhu kungcola kuvame ukuvela emoyeni, amathuluzi okwakha kanye namafutha e-substrate, uthuli, inkungu kapende, umhwamuko wamanzi, njll.
Izakhiwo zopende ngokwazo, njenge-viscosity yokwakha, isikhathi sokumisa, njll., zizophinde zibe nomthelela omkhulu ekulinganisweni kokugcina kwefilimu yepende.I-viscosity ephezulu kakhulu yokwakha kanye nesikhathi sokumisa esifushane ngokuvamile kuzokhiqiza indawo esezingeni eliphansi.
Ngakho-ke, kuyadingeka ukwengeza i-ejenti yokulinganisa, ngokusebenzisa i-coating in the process of construction and film formation of some changes and coating properties ukulungisa, ukusiza upende uthole ukulinganisa okuhle.

iphakethe kanye nezokuthutha

B. Lo mkhiqizo ungasetshenziswa, 25KG, 200KG, 1000KG IMIBHALO.
C. Gcina kuvaliwe endlini epholile, eyomile futhi engenamoya.Iziqukathi kufanele zivalwe ngokuqinile ngemva kokusetshenziswa ngakunye ngaphambi kokusetshenziswa.
D. Lo mkhiqizo kufanele uvalwe kahle ngesikhathi sokuthutha ukuvimbela umswakama, i-alkali enamandla ne-asidi, imvula nokunye ukungcola ekuxubeni.