Wararka

Samaynta filimka dahaarka ee saxan midab leh ayaa inta badan ka mid ah adhesion daahan iyo qalajinta daahan.
Adhesion ee saxan dahaarka Midabka
Talaabada ugu horeysa ee adhesion ee substrate strip birta iyo daahan waa qoynta ee daahan saxan midabka dahaarka ah ee dusha sare ee substrate-ka.Qooynta dahaarka ayaa bedeli kara hawada iyo biyaha markii hore lagu dhajiyay dusha sare ee substrate-ka birta ah.Isla mar ahaantaana, qallafsanaanta dareeraha dusha sare ee substrate-ka ayaa saameyn ku leh kala dirid ama barar.Haddii xuduudaha milanka ee filimka samaynta resin ee daahan saxan midabka dahaarka ah iyo dusha sare ee substrate si sax ah loo doortay, lakabka inter-lakab ah ayaa la samayn doonaa inta u dhaxaysa dusha sare ee substrate saxan midabka dahaarka ah iyo filimka daahan, Tani waa mid aad u badan. muhiim u ah adhesion wanaagsan ee daahan.
B Midabka saxanka dahaarka leh engejinta
Dhismaha adhesion ee daahan saxan midabka dahaarka ah oo kaliya dhameystiraya tallaabada ugu horreysa ee formation film daahan ee habka daahan ee saxan midabka dahaarka ah, iyo sidoo kale sii wadaan habka of jeestay galay filim joogto ah oo adag, kaas oo buuxin kara oo dhan formation daahan filimka. habka.Nidaamkan laga bilaabo "filimka qoyan" ilaa "filimka qallalan" waxaa badanaa loo tixraacaa "qallajinta" ama "daaweynta".Habka qalajinta iyo daaweynta Tani waa udub dhexaadka habka samaynta filimka daahan.Noocyo kala duwan iyo qaabab kala duwan oo dahaar ah ayaa leh qaab-samaynta filim u gaar ah, kaas oo lagu go'aamiyo sifooyinka walxaha samaynta filimada ee loo isticmaalo dahaarka.Guud ahaan, waxaan u qaybineynaa sameynta filimka ee daahan laba qaybood: adag iyo beer
(1) Aan la beddelin.Guud ahaan, waxa loola jeedaa habka filim-samaynta jirka, taas oo inta badan ku xiran tahay isbedbedelka ee dareeraha ama warbaahinta kale firidhsan ee filimka, iyo viscosity filim si tartiib ah u kordho si ay u sameeyaan filim adag.Tusaale ahaan: rinji akril, rinji caag koloriin leh, rinji vinyl, iwm.
(2) Isbadal.Guud ahaan, waxa ay tilmaamaysaa falcelinta kiimikaad ee dhaca inta lagu jiro habka samaynta filimku, iyo samaynta dahaarka filimku waxa uu inta badan ku xidhan yahay falcelinta kiimikada.Qaab-samaynta noocan oo kale ah waa habka walxaha filim-samaynta ee ku jira daaha-polymerizing filimka la yiraahdo polymer ka dib dhismaha.Waxaa la dhihi karaa waa hab gaar ah oo ah isku-dhafka polymer, kaas oo si buuxda u raacaya habka falcelinta ee isku-dhafka polymer.Tusaale ahaan: dahaarka alkyd, daahan epoxy, daahan poliurethane, dahaarka phenolic, iwm. Si kastaba ha ahaatee, inta badan daahan casriga ah ma sameeyaan filimada si kaliya, laakiin waxay ku tiirsan yihiin siyaabo badan si ay u sameeyaan filimada.Dahaarka gariiradda ayaa ah mid caadi ah oo ku tiirsan siyaabo badan oo loo sameeyo filimada.