1. Nidaamka lafaha
Nooc cusub oo polymer ah, polymer hyperbranched wuxuu leeyahay qaab dhismeed wareegsan, tiro badan oo ah kooxaha dhamaadka firfircoon iyo wax dabaylo ah oo u dhexeeya silsiladaha molecular.polymers Hyperbranched waxay leeyihiin faa'iidooyinka kala diri fudud, dhibic dhalaalaysa hoose, viscosity hoose iyo falcelin sare.Sidaa darteed, kooxaha acryloyl iyo kooxaha hydrophilic ayaa la soo bandhigi karaa si ay u soo saaraan iftiinka biyaha ee daaweynta oligomers, kaas oo furaya hab cusub oo loogu talagalay diyaarinta resin Waterborne UV.
UV polyester-ka la daweyn karo (whpua) waxaa diyaariyay falcelinta Hyperbranched Polyester oo qani ku ah kooxaha hydroxyl ee leh succinic anhydride iyo ipdi-hea prepolymer, oo ugu dambeyntii laga takhalusay amine organic si ay u sameeyaan milix.Natiijooyinku waxay muujinayaan in heerka daawaynta iftiinka ee resinku uu yahay mid degdeg ah oo sifooyinka jirku ay wanaagsan yihiin.Kordhinta nuxurka qaybta adag, heerkulka kala-guurka dhalada ee resinku wuu kordhiyaa, adkaanta iyo xoogga jilicsanaanta ayaa sidoo kale kordhiya, laakiin dhererka nasashada ayaa hoos u dhacaya.Polyester-yada la isku qurxiyo ayaa laga diyaariyey polyanhydrides iyo monofunctional epoxides.Glycidyl methacrylate waxaa loo soo bandhigay si uu uga falceliyo hydroxyl iyo kooxaha karboksyl ee polymers-ka hyperbranched.Ugu dambeyntii, triethylamine ayaa lagu daray si ay u dhexdhexaadiso oo ay u sameyso milix si ay u hesho UV-daawoyinka la-daaweeyay ee hyperbranched polyesters.Natiijooyinku waxay muujiyeen in badan oo ka kooban kooxda karboksyl ee dhamaadka resin-ku-salaysan biyaha, ay ka sii fiicnaanayso milanka biyaha;Heerka daawaynta ee resinku waxa uu kordhiyaa kororka xidhmooyin laba jibaaran ee terminal.
2 habka isku-dhafan ee organic-inorganic
Iftiinka UV ee biyaha ka dhasha ee la daaweeyay habka isku-dhafan ee organic/organic waa isku-dhafka wax ku oolka ah ee xabagta UV ee Waterborne iyo walxaha aan organic ahayn.Faa'iidooyinka alaabta aan dabiiciga ahayn sida caabbinta sare ee xirashada iyo iska caabbinta cimilada sare ayaa lagu dhejiyaa resin si loo hagaajiyo sifooyinka dhamaystiran ee filimka la daaweeyay.Marka la soo bandhigo walxaha aan orgaaniga ahayn sida nano-SiO2 ama montmorillonite nidaamka daaweynta UV iyada oo loo marayo habka kala firdhinta tooska ah, habka sol-gel ama habka isdhexgalka, UV daaweynta organic / nidaamka isku-dhafka ah ayaa la diyaarin karaa.Intaa waxaa dheer, monomer organosilicon waxaa lagu soo bandhigi karaa silsiladda molecular ee oligomer UV aqueous.
Lotion Organo / Inorganic Hybrid Lotion (Si PUA) waxaa loo diyaariyey iyadoo lagu soo bandhigay kooxaha polysiloxane qaybta jilicsan ee polyurethane oo leh laba terminal hydroxybutyl polydimethylsiloxane (PDMS) oo lagu qaso monomers acrylic.Ka dib daaweynta, filimka rinji wuxuu leeyahay sifooyin jireed oo wanaagsan, xagal sare oo xiriir ah iyo caabbinta biyaha.Polyurethane hybrid hyperbranched iyo nalka la daaweeyay hyperbranched polyurethane ayaa laga diyaariyey polyurethane polyhydroxy hyperbranched, succinic anhydride, wakiilka isku xidhka silane KH560, glycidyl methacrylate (GMA) iyo hydroxyethyl methacrylate.Ka dib, Si02 / Ti02 organic-inorganic hybrid sol oo iftiin ah oo la daaweeyay poliurethane hyperbranched ayaa la diyaariyey iyadoo la isku qasay iyo hydrolyzed leh tetraethyl orthosilicate iyo n-butyl titanate oo kala duwan.Natiijooyinku waxay muujinayaan in kororka maadada aan noolaha ahayn, qallafsanaanta pendulum ee daahan isku-dhafka ah ayaa kordhay iyo qallafsanaanta dusha sare ayaa kordhaysa.Tayada dusha sare ee daahan hybrid SiO2 waa ka fiican yahay daahan hybrid Ti02.
3 hab-daawaynta laba-geesoodka ah
Si loo xalliyo cilladaha daawaynta saddex-geesoodka ah ee resin Waterborne UV iyo daaweynta daahan qaro weyn iyo nidaamka midabka leh, iyo hagaajinta sifooyinka dhamaystiran ee filimka, cilmi-baarayaashu waxay soo saareen nidaam labajibbaaran oo isku daraya daaweynta iftiinka iyo hababka kale ee daaweynta.Waqtigan xaadirka ah, daawaynta iftiinka, daaweynta kulaylka, daaweynta iftiinka / daaweynta redox, daaweynta iftiinka xagjirka ah ee bilaashka ah / daawaynta iftiinka cationic iyo daawaynta iftiinka / daawaynta qoyan waa habab daaweyneed oo caadi ah, iyo nidaamyada qaar ayaa lagu dabaqay.Tusaale ahaan, xabagta ilaalinta elektaroonigga ah ee UV waa nidaam labajibbaaran oo daawaynta iftiinka / dib u habeynta ama daaweynta iftiinka / daweynta qoyan.
Monomer ethyl acetoacetate methacrylate (amme) oo shaqeynaya ayaa lagu soo bandhigay kareemka polyacrylic acid, kooxda daweynta iftiinka waxaa lagu soo bandhigay falcelinta dheeriga ah ee Michael ee heerkul hooseeya si loo soo saaro daaweynta kuleylka / uv curing polyacrylate waterborne.Ku qallaji heerkul joogto ah oo ah 60 ° C, 2 x 5 Marka la eego xaaladda 6 kW cadaadiska sare ee meerkuriga iftiinka, qallafsanaanta resin ka dib sameynta filimku waa 3h, caabbinta khamriga waa 158 jeer, caabbinta alkali waa 24 saacadood.
4 Epoxy acrylate / polyurethane acrylate nidaam isku dhafan
Dahaarka Epoxy acrylate wuxuu leeyahay faa'iidooyinka adkaanta sare, dhejinta wanaagsan, dhalaalka sare iyo caabbinta kiimikada wanaagsan, laakiin waxay leedahay dabacsanaan iyo jajabnaan liidata.Acrylate polyurethane ee biyaha ku jira ayaa leh sifooyinka iska caabbinta xirashada wanaagsan iyo dabacsanaanta, laakiin caabbinta cimilada liidata.Isticmaalka wax ka beddelka kiimikaad, isku-dhafka jirka ama hababka isku-dhafan si si wax-ku-ool ah loo isku daro labada resin waxay wanaajin karaan waxqabadka hal resin waxayna siin karaan ciyaar buuxda faa'iidooyinkooda, si loo horumariyo nidaamka daaweynta UV-ga oo leh labadaba faa'iidooyin.
5 sawir qaade makromolecular ama polymerizable
Inta badan sawir-qaadayaasha waa aryl alkyl ketone molecules yaryar, kuwaas oo aan si buuxda u burburin karin ka dib daaweynta iftiinka.Unugyada yaryar ee haraaga ah ama alaabta sawir-qaadista waxay u guuri doonaan dusha sare ee daahan, taasoo keenaysa jaale ama ur, taas oo saameyn doonta waxqabadka iyo codsiga filimka la daaweeyay.Soo bandhigida sawir-qaadayaasha, kooxaha acryloyl iyo kooxaha hydrophilic polymers hyperbranched, cilmi-baarayaashu waxay soosaareen sawir-qaadayaasha makromolecular polymerizable ee biyaha ka dhasha si ay uga gudbaan faa'iido darrada sawir-qaadayaasha molecular yar.
Waqtiga boostada: Meey-09-2022