Pheko ea UV & EB hangata e hlalosa ts'ebeliso ea lebone la elektronike (EB), ultraviolet (UV) kapa leseli le bonahalang ho polymerize motsoako oa li-monomers le oligomer holim'a substrate. Thepa ea UV & EB e ka etsoa enke, ho roala, sekhomaretsi kapa sehlahisoa se seng. Ts'ebetso ena e boetse e tsejoa e le kalafo ea radiation kapa radcure hobane UV le EB ke mehloli e khanyang ea matla. Mehloli ea matla a mahlaseli a kotsi a UV kapa a bonoang hangata ke mabone a mercury a mahareng, mabone a pulsed xenon, LED kapa lasers. EB-ho fapana le li-photon tsa leseli, tse atisang ho monngoa haholo-holo holim'a thepa-e na le bokhoni ba ho phunyeletsa ka taba.
Mabaka a Mararo a Matla a ho Fetolela ho UV & EB Technology
Poloko ea Matla le Tlhahiso e Ntlafetseng: Kaha lisebelisoa tse ngata ha li na solvent 'me li hloka nako e ka tlaase ho motsotsoana oa ho pepeseha, phaello ea tlhahiso e ka ba khōlō haholo ha e bapisoa le mekhoa e tloaelehileng ea ho roala. Mabelo a marang-rang a 1,000 ft/min. li tloaelehile 'me sehlahisoa se se se loketse ho hlahlojoa le ho romelloa hang-hang.
E Loketse Sensitive Substrates: Boholo ba lisebelisoa ha bo na metsi kapa solvent. Ntle le moo, ts'ebetso ena e fana ka taolo e felletseng ea mocheso oa pheko e etsang hore e be e loketseng bakeng sa ts'ebeliso ho li-substrates tse sa utloeleng mocheso.
Tikoloho le Motsoalle oa Mosebelisi: Liqapi hangata ha li na solvent ka hona ho tsoa le ho cha ha se taba. Sistimi ea pheko e bobebe e lumellana le hoo e batlang e le mekhoa eohle ea ts'ebeliso mme e hloka sebaka se fokolang. Hangata mabone a UV a ka kenngoa lithapong tse teng tsa tlhahiso.
UV & EB Liqapi tse Phekolehang
Li-monomers ke litene tse bonolo ka ho fetisisa tsa ho haha tseo ho tsona ho entsoeng thepa ea maiketsetso. Monomere e bonolo e nkiloeng ho phepelo ea petroleum ke ethylene. E emetsoe ke: H2C=CH2. Letšoao "=" pakeng tsa li-unit tse peli kapa liathomo tsa carbon li emela sebaka se sebetsang kapa, joalokaha litsebi tsa lik'hemik'hale li bua ka eona, "bond bond" kapa unsaturation. Ke libaka tse kang tsena tse khonang ho itšoara ho etsa lik'hemik'hale tse khōloanyane kapa tse khōloanyane tse bitsoang oligomers le polymers.
Polymer ke sehlopha sa likarolo tse ngata (ke hore poly-) tse pheta-phetoang tsa monoma e le 'ngoe. Lereo oligomer ke lentsoe le ikhethileng le sebelisetsoang ho supa li-polymer tseo hangata li ka arabelang hape ho theha motsoako o moholo oa lipolymer. Libaka tsa unsaturation ho li-oligomers le monomers feela li ke ke tsa e-ba le karabelo kapa ho kopanya.
Tabeng ea phekolo ea mahlaseli a electron, li-electrone tse matla tse phahameng li sebelisana ka ho toba le liathomo tsa sebaka se sa tsitsang ho hlahisa molek'hule e sebetsang haholo. Haeba UV kapa leseli le bonahalang le sebelisoa e le mohloli oa matla, photoinitiator e kenngoa motsoako. Photoinitiator, ha e pepeselitsoe khanyeng, e hlahisa radical ea mahala kapa liketso tse qalang ho kopana pakeng tsa libaka tsa unsaturation.ponents tsa UV & ude.
Li-Oligomers: Thepa e akaretsang ea ho roala, enke, sekhomaretsi kapa sekhomaretsi se kopantsoeng ke matla a khanyang a khethoa haholo ke li-oligomer tse sebelisitsoeng ha ho etsoa. Li-oligomers ke li-polymers tsa boima ba limolek'hule tse itekanetseng, tseo bongata ba tsona li thehiloeng ho acrylation ea meaho e fapaneng. The acrylation e fana ka unsaturation kapa "C = C" sehlopha ho ea lipheletsong tsa oligomer.
Li-monomers: Li-monomers li sebelisoa haholo e le li-diluent ho theola viscosity ea thepa e sa phekolehang ho thusa ts'ebeliso. E ka ba monofunctional, e nang le sehlopha se le seng feela se sebetsang kapa sebaka sa unsaturation, kapa se nang le mesebetsi e mengata. Unsaturation ena e ba lumella ho itšoara le ho kenngoa ka har'a thepa e phekotsoeng kapa e phethiloeng, ho e-na le hore e fetohe sepakapaka joalokaha ho tloaelehile ka liaparo tse tloaelehileng. Li-monomers tse sebetsang ka bongata, hobane li na le libaka tse peli kapa ho feta tse sebetsang, li theha maqhama pakeng tsa limolek'hule tsa oligomer le li-monomers tse ling ha ho etsoa.
Photoinitiators: Sesebelisoa sena se monya leseli 'me se ikarabella bakeng sa tlhahiso ea li-radicals tsa mahala kapa liketso. Li-radicals tsa mahala kapa liketso ke mefuta e mengata ea matla e etsang hore ho be le kamano pakeng tsa libaka tsa unsaturation tsa li-monomers, oligomers le polymers. Li-photoinitiators ha li hlokehe bakeng sa lits'ebetso tse folisitsoeng tsa elektrone hobane lielektrone li khona ho qala ho hokahanya.
Li-additives: Tse atileng haholo ke li-stabilizers, tse thibelang gelation polokelong le ho folisa pele ho nako ka lebaka la maemo a tlase a khanya. Li-pigments tsa mebala, lidae, li-defoamers, li-addhesion promoters, li-flatting agents, li-wetting agents le li-slip aid ke mehlala ea lisebelisoa tse ling.
Nako ea poso: Jan-01-2025
