Synthesis Of UV Curable Waterborne Polyurethane Acrylate Coatings Featured Duab

Synthesis ntawm UV Curable Waterborne Polyurethane Acrylate Coatings

Lus piav qhia luv luv:

Uv-wpua txheej yog tsim los ntawm oligomer, photoinitiator, nquag diluent, thiab lwm yam. Oligomer yog qhov tseem ceeb tshaj plaws hauv uv-wpua txheej.Nws cov qauv txiav txim siab cov yam ntxwv ntawm UV curing zaj duab xis, xws li hardness, yooj, hnav tsis kam, dej tsis kam thiab corrosion kuj.Photoinitiator yog ib qho tseem ceeb ntawm UV curing system, uas ua lub luag haujlwm tseem ceeb hauv kev nkag siab ntawm UV curing txheej txheem thiab tseem cuam tshuam rau qhov kawg ntawm kev kho cov yeeb yaj kiab.Uv-wpua txheej siv cov dej ua kom nquag plias, uas txo qis kev siv cov kuab tshuaj organic.

Xa email rau peb

Product Detail

Khoom cim npe

Synthesis ntawm Waterborne Polyurethane Acrylate

Lub oligomer nyob rau hauv uv-wpua txheej yog wpua, uas yog ib feem tseem ceeb ntawm txheej.Wpua feem ntau yog tsim los ntawm cov tshuaj tiv thaiv ntawm polyisocyanate, diol thiab hydroxyl acrylate.Isocyanates suav nrog cov tshuaj tsw qab isocyanates, aliphatic isocyanates thiab alicyclic isocyanates, uas cuam tshuam rau kev nruj, huab cua tsis kam thiab yellowing tsis kam ntawm wpua.Diols feem ntau suav nrog polyether diols thiab polyester diols, uas cuam tshuam rau lub zog tensile, softness, kub tsis kam thiab hydrolysis tsis kam ntawm wpua.
Lub - NCO pab pawg nyob rau hauv lub polyisocyanate reacts nrog hydroxyl pawg ntawm diol los ua ib tug oligomer nrog isocyanate pawg ntawm ob qho tib si kawg.2. 2,2-dihydroxymethylpropionic acid (DMPA) yog siv los ua diol los qhia cov pab pawg hydrophilic rau hauv oligomer, thiab 1,4-butanediol (BDO) yog ntxiv rau cov saw txuas ntxiv;3. Hydroxyethyl acrylate (HEA) tau siv los ua kom pom cov duab active pawg uas muaj unsaturated ob daim ntawv cog lus rau UV kho.Tom qab peb-kauj ruam ua tiav, triethanolamine (teoa) ntxiv rau cov tshuaj tiv thaiv tsis zoo, thiab thaum kawg dej ntxiv rau emulsify nws rau hauv tshuaj pleev.
Lwm cov kws tshawb fawb tau tsim cov uv-wpua nrog kev ua haujlwm zoo los ntawm kev siv cov khoom siv hluavtaws xws li Polyhexylene glycol, isophorone diisocyanate, PETA, thiab dimethylbutyric acid (DMBA).Peb hom wpua tau tsim los ntawm kev npaj polyacrylate nrog carboxyl pawg nyob rau hauv sab saw, polyether polyol, isophorone diisocyanate thiab hydroxyethyl acrylate.Tom qab kev tshawb xyuas tag nrho ntawm kev kuaj lub cev thiab daim ntawv thov, nws tau txiav txim siab tias qhov kev ua tau zoo ntawm polyether wpua yog qhov zoo dua.Siv toluene diisocyanate, polyhexanediol, 2,2-dihydroxymethylpropionic acid thiab hydroxyethyl methacrylate li raw cov ntaub ntawv, prepolymer yog thawj zaug synthesized, ces triethylamine tau ntxiv los ua neutralizing tus neeg sawv cev, thiab dej tau siv raws li saw extender rau disperse nyob rau hauv dej los tsim ruaj khov wpua lotion.