Synthesis Of UV Metsi a Phekolehang a Polyurethane Acrylate Coatings Featured Image

Synthesis Of UV Metsi a Phekolohang a Polyurethane Acrylate Coatings

Tlhaloso e Khutšoanyane:

Uv-wpua coating e entsoe ka oligomer, photoinitiator, diluent e sebetsang, joalo-joalo Oligomer ke karolo ea bohlokoa ka ho fetisisa ho uv-wpua coating.Sebopeho sa eona se etsa qeto ea thepa ea mantlha ea filimi e folisang ea UV, joalo ka ho thatafala, ho feto-fetoha ha maemo, ho hanyetsa metsi, ho hanyetsa metsi le ho hanyetsa kutu.Photoinitiator ke karolo ea bohlokoa ea sistimi ea pholiso ea UV, e bapalang karolo ea bohlokoa molemong oa ts'ebetso ea pholiso ea UV hape e ama ts'ebetso ea ho qetela ea filimi e folisitsoeng.Ho roala ha Uv-wpua ho sebelisa metsi e le mokelikeli o sebetsang, e leng ho fokotsang haholo tšebeliso ea lihlahisoa tsa tlhaho.

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Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Synthesis Of Waterborne Polyurethane Acrylate

Oligomer ka seaparo sa UV-wpua ke wpua, e leng karolo e ka sehloohong ea ho roala.Wpua ka kakaretso e entsoe ka karabelo ea polyisocyanate, diol le hydroxyl acrylate.Li-Isocyanate li kenyelletsa li-isocyanate tse nkhang hamonate, li-aliphatic isocyanate le li-alicyclic isocyanates, tse amang ho tiea, ho hanyetsa boemo ba leholimo le khanyetso e mosehla ea wpua.Li-diols haholo-holo li kenyelletsa polyether diols le polyester diols, tse amang matla a tsitsitseng, bonolo, ho hanyetsa mocheso le hydrolysis resistance of wpua.
Sehlopha sa - NCO se polyisocyanate se kopana le sehlopha sa hydroxyl sa diol ho theha oligomer e nang le lihlopha tsa isocyanate lipheletsong tse peli.2. 2,2-dihydroxymethylpropionic acid (DMPA) e sebelisoa e le diol ho hlahisa lihlopha tsa hydrophilic ho oligomer, 'me 1,4-butanediol (BDO) e eketsoa bakeng sa ho atolosa ketane;3. Hydroxyethyl acrylate (HEA) e ne e sebelisetsoa ho hlahisa lihlopha tse sebetsang tsa lifoto tse nang le li-unsaturated bond tse peli bakeng sa phekolo ea UV.Kamora karabelo ea mehato e meraro e phethiloe, triethanolamine (teoa) e eketsoa bakeng sa karabelo ea ho se nke lehlakore, 'me qetellong metsi a eketsoa ho e etsa lotion.
Litsebi tse ling li entse uv-wpua ka ts'ebetso e ntle haholo ka ho sebelisa lisebelisoa tse tala tsa maiketsetso tse kang Polyhexylene glycol, isophorone diisocyanate, PETA, le dimethylbutyric acid (DMBA).Mefuta e meraro ea wpua e entsoe ho tsoa ho polyacrylate e lokisitsoeng e nang le sehlopha sa carboxyl ka ketane ea mahlakoreng, polyether polyol, isophorone diisocyanate le hydroxyethyl acrylate.Kamora lipatlisiso tse felletseng tsa tlhahlobo ea 'mele le tlhahlobo ea kopo, ho nkoa hore ts'ebetso e felletseng ea polyether wpua e betere.Ho sebelisa toluene diisocyanate, polyhexanediol, 2,2-dihydroxymethylpropionic acid le hydroxyethyl methacrylate e le lisebelisoa tse tala, prepolymer e ile ea qala ho etsoa, ka mor'a moo triethylamine e ile ea eketsoa e le ntho e sa tsitsang, 'me metsi a sebelisoa e le ketane extender ho hasana ka metsing ho etsa wpua lotion e tsitsitseng.