Nts'etsopele e ncha ea resin ea UV e hlahisoang ke metsi

1. Sistimi ea hyperbranched

Joalo ka mofuta o mocha oa polymer, polymer ea hyperbranched e na le sebopeho se chitja, palo e kholo ea lihlopha tsa pheletso e sebetsang 'me ha e na matsoelintsoeke lipakeng tsa liketane tsa limolek'hule.Li-polymers tse nang le li-hyperbranched li na le melemo ea ho qhibiliha habonolo, sebaka se tlaase sa ho qhibiliha, viscosity e tlaase le reactivity e phahameng.Ka hona, lihlopha tsa acryloyl le lihlopha tsa hydrophilic li ka hlahisoa ho kopanya li-oligomers tse tsoang metsing, tse bulang tsela e ncha ea ho lokisoa ha resin ea UV ea metsi.

Polyester (whpua) e phekolehang ea UV e phekolehang e entsoe ke karabelo ea Hyperbranched Polyester e ruileng ka lihlopha tsa hydroxyl tse nang le succinic anhydride le ipdi-hea prepolymer, 'me qetellong ea seketsoa ka organic amine ho etsa letsoai.Liphetho li bonts'a hore sekhahla sa pholiso ea khanya ea resin e potlakile mme thepa ea 'mele e ntle.Ka keketseho ea likarolo tse thata, mocheso oa phetoho ea khalase oa resin oa eketseha, ho thatafala le matla a tsitsitseng le tsona lia eketseha, empa bolelele nakong ea khefu boa fokotseha.Li-polyester tse nang le li-hyperbranched li ne li lokisitsoe ho tloha polyanhydrides le monofunctional epoxides.Glycidyl methacrylate e ile ea hlahisoa ho tsoela pele ho sebetsana le lihlopha tsa hydroxyl le carboxyl tsa li-polymer tse hyperbranched.Qetellong, triethylamine e ile ea eketsoa ho fokotsa le ho etsa matsoai ho fumana li-polyester tse nang le UV tse phekolehang tse tsoang metsing.Liphello li bontšitse hore ha sehlopha sa carboxyl se ntse se le teng qetellong ea resin ea hyperbranched e entsoeng ka metsi, ho ba molemo ho qhibiliha ha metsi;Sekhahla sa pheko ea resin se eketseha ka keketseho ea li-bond tse peli tsa terminal.

2 organic-inorganic hybrid system

Leseli la UV le nang le metsi le phekotsoeng organic / inorganic hybrid system ke motsoako o sebetsang oa resin ea UV e hlahisoang ke metsi le lisebelisoa tsa tlhaho.Melemo ea lisebelisoa tsa inorganic tse kang ho hanyetsa ho apara haholo le ho hanyetsa boemo ba leholimo bo phahameng li kenngoa ka har'a resin ho ntlafatsa thepa e feletseng ea filimi e phekotsoeng.Ka ho hlahisa likaroloana tsa inorganic tse kang nano-SiO2 kapa montmorillonite tsamaisong ea pholiso ea UV ka mokhoa o tobileng oa ho hasana, mokhoa oa sol-gel kapa mokhoa oa ho kopanya, mokhoa oa ho phekola oa UV organic / inorganic hybrid o ka lokisoa.Ntle le moo, monoma ea organosilicon e ka hlahisoa ka har'a ketane ea limolek'hule ea oligomer e nang le metsi a UV.

Organo / inorganic hybrid lotion (Si PUA) e hlophisitsoe ka ho hlahisa lihlopha tsa polysiloxane karolong e bonolo ea polyurethane e nang le li-terminal hydroxybutyl polydimethylsiloxane (PDMS) le ho hlapolla ka li-acrylic monomers.Ka mor'a ho phekola, filimi ea pente e na le thepa e ntle ea 'mele, lehlakoreng le phahameng la ho kopana le ho hanyetsa metsi.Hyperbranched hybrid polyurethane le khanya e folisitsoeng ea hyperbranched polyurethane li ile tsa lokisoa ho tsoa ho polyhydroxy hyperbranched polyurethane e ikemetseng, succinic anhydride, silane coupling agent KH560, glycidyl methacrylate (GMA) le hydroxyethyl methacrylate.Ebe, Si02 / Ti02 organic-inorganic hybrid sol ea khanya e phekotsoeng ea hyperbranched polyurethane e ile ea lokisoa ka ho tsoakoa le ho hydrolyzing ka tetraethyl orthosilicate le n-butyl titanate ka likarolo tse fapaneng.Liphello li bontša hore ka ho eketseha ha lintho tse sa pheleng, ho thatafala ha pendulum ea ho roala lebasetere hoa eketseha 'me boima ba holim'a metsi boa eketseha.Boleng ba bokaholimo ba seaparo se nyalisitsoeng sa SiO2 se molemo ho feta sa Ti02 hybrid coating.

3 Sistimi ea pheko e habeli

E le ho rarolla mefokolo ea pheko ea mahlakore a mararo ea resin ea UV ea Waterborne le ho phekola ho roala ho teteaneng le tsamaiso ea mebala, le ho ntlafatsa thepa e feletseng ea filimi, bafuputsi ba ile ba theha mokhoa oa ho phekola o kopanyang leseli le mekhoa e meng ea phekolo.Hajoale, pheko e bobebe, pheko ea mocheso, pholiso e bobebe / pholiso ea redox, pholiso ea mahala ea leseli / cationic leseli le pholiso e bobebe / pholiso ea metsi ke litsamaiso tse tloaelehileng tsa pheko, 'me lits'ebetso tse ling li se li sebelisitsoe.Mohlala, sekhomaretsi se sirelletsang sa elektroniki sa UV ke mokhoa oa ho folisa habeli oa pholiso e bobebe / redox kapa pholiso e bobebe / e metsi.

Monomer ethyl acetoacetate methacrylate (amme) e sebetsang e ile ea kenngoa ka har'a polyacrylic acid lotion, 'me sehlopha sa pholiso e bobebe se ile sa hlahisoa ka karabelo ea Michael ka mocheso o tlase ho kopanya mocheso oa mocheso / UV ho phekola polyacrylate ea metsi.E omme ka mocheso o sa khaotseng oa 60 ° C, 2 x 5 Tlas'a boemo ba 6 kW lebone la lebone le phahameng la khatello ea mercury, ho thatafala ha resin ka mor'a ho thehoa ha filimi ke 3h, ho hanyetsa joala ke makhetlo a 158, 'me ho hanyetsa alkali ke 24. lihora.

4 epoxy acrylate / polyurethane acrylate composite system

Ho roala ka epoxy acrylate ho na le melemo ea ho thatafala ho phahameng, ho khomarela hantle, ho benya ho phahameng le ho hanyetsa lik'hemik'hale tse ntle, empa ho na le maemo a fokolang le ho brittleness.Waterborne polyurethane acrylate e na le litšobotsi tsa ho hanyetsa ho apara hantle le ho fetoha habonolo, empa ho hanyetsa boemo ba leholimo bo bobe.Ho sebelisa phetoho ea lik'hemik'hale, ho kopanya 'mele kapa mekhoa e nyalisitsoeng ho kopanya li-resin tse peli ka katleho ho ka ntlafatsa ts'ebetso ea resin e le' ngoe le ho fana ka papali e felletseng molemong oa bona, e le ho theha sistimi e sebetsang hantle ea UV e nang le melemo ka bobeli.

5 macromolecular kapa polymerizable photoinitiator

Boholo ba li-photoinitiators ke limolek'hule tse nyenyane tsa aryl alkyl ketone, tse ke keng tsa senyeha ka ho feletseng ka mor'a ho folisoa ha leseli.Limolek'hule tse nyenyane tse setseng kapa lihlahisoa tsa photolysis li tla fallela sebakeng sa ho roala, ho baka mosehla kapa monko o monate, o tla ama ts'ebetso le tšebeliso ea filimi e phekotsoeng.Ka ho hlahisa li-photoinitiators, lihlopha tsa acryloyl le lihlopha tsa hydrophilic ho li-polymers tse nang le hyperbranched, bafuputsi ba ile ba kopanya li-photoinitiators tse nang le metsi a macromolecular polymerizable ho hlola mefokolo ea li-photoinitiators tse nyane tsa limolek'hule.