1. Inkqubo ene-hyperbranched
Njengohlobo olutsha lwepolymer, i-hyperbranched polymer inesakhiwo esingqukuva, inani elikhulu lamaqela okugqibela asebenzayo kwaye akukho moya phakathi kwamakhonkco emolekyuli.I-Hyperbranched polymers ineenzuzo zokuchithwa lula, indawo encibilikayo ephantsi, i-viscosity ephantsi kunye nokusebenza okuphezulu.Ngoko ke, amaqela e-acryloyl kunye namaqela e-hydrophilic anokwaziswa ukuba adibanise i-oligomers yokukhanya kwamanzi, evula indlela entsha yokulungiselela i-Waterborne UV resin.
I-UV enyangekayo yasemanzini i-hyperbranched polyester (whpua) yalungiswa ngokusabela kwe-Hyperbranched Polyester etyebileyo kumaqela e-hydroxyl ane-succinic anhydride kunye ne-ipdi-hea prepolymer, kwaye ekugqibeleni ingathathi hlangothi nge-organic amine ukwenza ityuwa.Iziphumo zibonisa ukuba izinga lokunyanga ukukhanya kwe-resin likhawuleza kwaye iimpawu ezibonakalayo zilungile.Ngokunyuka komxholo wecandelo elinzima, iqondo lokushisa lokutshintsha kweglasi le-resin liyenyuka, ukuqina kunye namandla okuqina nawo ayanda, kodwa ukunyuswa kwekhefu kuyancipha.I-polyester ene-hyperbranched yalungiswa ukusuka kwi-polyanhydrides kunye ne-monofunctional epoxides.I-Glycidyl methacrylate yaziswa ukuba isabele ngakumbi nge-hydroxyl kunye namaqela e-carboxyl eepolima ezinebranched.Okokugqibela, i-triethylamine yongezwa ukuze ingathathi hlangothi kwaye yenze iityuwa ukuze kufumaneke iipolyester ezine-UV ezinyangekayo zamanzi.Iziphumo zibonise ukuba ngakumbi umxholo weqela le-carboxyl ekupheleni kwe-resin esekelwe kumanzi e-hyperbranched, ngcono ukunyibilika kwamanzi;Izinga lokunyanga i-resin liyenyuka ngokunyuka kwe-terminal bond bond.
2 inkqubo ye-organic-inorganic hybrid
Ukukhanya okusemanzini kwe-UV okunyanga i-organic / inorganic hybrid system yinto esebenzayo edibeneyo ye-Waterborne UV resin kunye nemathiriyeli ye-inorganic.Iingenelo zezinto eziphathekayo ezifana nokuchasana nokugqoka okuphezulu kunye nokuchasana kwemozulu ephezulu kungeniswa kwi-resin ukuphucula iimpawu ezibanzi zefilimu ephilisiwe.Ngokuzisa amasuntswana e-inorganic afana ne-nano-SiO2 okanye i-montmorillonite kwinkqubo yokunyanga ye-UV ngokusebenzisa indlela yokusabalalisa ngokuthe ngqo, indlela ye-sol-gel okanye indlela yokudibanisa, i-UV yokunyanga i-organic / inorganic hybrid system inokulungiswa.Ukongeza, i-organosilicon monomer inokungeniswa kwikhonkco lemolekyuli ye-oligomer ye-UV enamanzi.
I-Organo / inorganic hybrid lotion (Si PUA) yalungiswa ngokwazisa amaqela e-polysiloxane kwicandelo elithambileyo le-polyurethane kunye ne-terminal hydroxybutyl polydimethylsiloxane (PDMS) kunye nokuxutywa nge-acrylic monomers.Emva kokunyanga, ifilimu yepeyinti ineempawu ezintle zomzimba, i-angle yoqhagamshelwano ephezulu kunye nokuchasana kwamanzi.I-Hyperbranched hybrid polyurethane kunye nokukhanya okunyangekileyo hyperbranched polyurethane zalungiswa ukusuka kwi-polyhydroxy hyperbranched polyurethane eyenziwe ngokwayo, i-succinic anhydride, i-silane coupling agent KH560, i-glycidyl methacrylate (GMA) kunye ne-hydroxyethyl methacrylate.Emva koko, i-Si02 / Ti02 i-organic-inorganic hybrid sol yokukhanya ephilisiwe i-hyperbranched polyurethane yalungiswa ngokuxuba kunye ne-hydrolyzing kunye ne-tetraethyl orthosilicate kunye ne-n-butyl titanate ngokwemilinganiselo eyahlukeneyo.Iziphumo zibonisa ukuba ngokunyuka komxholo we-inorganic, ukuqina kwe-pendulum ye-coating hybrid yanda kwaye ubuninzi bomhlaba buyanda.Umgangatho womphezulu we-SiO2 hybrid coating ungcono kunalowo weTi02 hybrid coating.
3 inkqubo yokunyanga kabini
Ukuze kusonjululwe iziphene zokunyanga i-Waterborne UV resin kunye nokunyangwa kwe-coating engqindilili kunye nenkqubo enemibala, kunye nokuphucula iipropathi ezibanzi zefilimu, abaphandi baphuhlise inkqubo yokunyanga kabini edibanisa ukunyanga ukukhanya kunye nezinye iinkqubo zokunyanga.Okwangoku, ukunyanga ukukhanya, ukunyangwa kwe-thermal, ukunyanga ukukhanya / ukunyanga i-redox, ukunyanga ukukhanya kwe-radical free / ukukhanya kwe-cationic kunye nokunyanga ukukhanya / ukunyanga okumanzi ziinkqubo eziqhelekileyo zokunyanga ezimbini, kwaye ezinye iinkqubo zisetyenzisiwe.Umzekelo, i-UV encamathelayo ekhuselayo ye-elektroniki yinkqubo yokunyanga kabini yokunyanga ukukhanya / i-redox okanye ukunyanga ukukhanya / ukunyanga okumanzi.
I-monomer ethyl acetoacetate methacrylate (amme) esebenzayo yaziswa kwi-polyacrylic acid lotion, kwaye iqela lokunyanga ukukhanya laziswa ngokusabela kukaMichael kubushushu obuphantsi ukwenza ukunyanga ubushushu / uv ukunyanga i-polyacrylate yamanzi.Yomisa kwiqondo lokushisa elingaguqukiyo lama-60 ° C, 2 x 5 Ngaphantsi kwemeko ye-6 kW i-high-pressure mercury irradiation, ubunzima be-resin emva kokubunjwa kwefilimu yi-3h, ukuchasana notywala ngamaxesha angama-158, kunye nokuxhatshazwa kwe-alkali ngama-24. iiyure.
4 epoxy acrylate / polyurethane acrylate inkqubo composite
I-epoxy acrylate coating ineengenelo zokuqina okuphezulu, ukuncamathela okuhle, ukukhazimla okuphezulu kunye nokuxhathisa okuhle kweekhemikhali, kodwa ayinakuguquguquka kunye nokuqaqadeka.I-polyurethane acrylate yamanzi ineempawu zokumelana nokunxiba kakuhle kunye nokuguquguquka, kodwa ukuchasana kwemozulu embi.Ukusebenzisa ukuguqulwa kweekhemikhali, ukudibanisa ngokomzimba okanye iindlela ezixubileyo zokudibanisa ngokufanelekileyo i-resin ezimbini kunokuphucula ukusebenza kwe-resin enye kwaye zinike umdlalo opheleleyo kwiinzuzo zabo, ukuze kuphuhliswe inkqubo ephezulu yokunyanga ye-UV enezibonelelo zombini.
I-5 macromolecular okanye i-polymerizable photoinitiator
Uninzi lwama-photoinitiators luyi-aryl alkyl ketone iimolekyuli ezincinci, ezingenako ukubola ngokupheleleyo emva kokunyanga ukukhanya.Iimolekyuli ezincinci ezishiyekileyo okanye iimveliso ze-photolysis ziya kufudukela kwindawo yokwambathisa, ibangele i-yellowing okanye ivumba, eliya kuchaphazela ukusebenza kunye nokusetyenziswa kwefilimu ephilisiwe.Ngokuzisa iifotonitiators, amaqela e-acryloyl kunye namaqela e-hydrophilic kwiipolymers ezine-hyperbranched, abaphandi baye badibanisa iifotonitiators ze-macromolecular polymerizable photoinitiators ukuze boyise izinto ezingeloncedo zeefotonitiators ezincinci zemolekyuli.
Ixesha lokuposa: May-09-2022