Uburyo bwo kuvura UV na EB

Ubusanzwe, UV & EB curating ivuga ikoreshwa rya electron beam (EB), ultraviolet (UV) cyangwa urumuri rugaragara kugira ngo hakorwe polymere y’uruvange rwa monomer na oligomer kuri substrate. Ibikoresho bya UV & EB bishobora gukorwamo wino, coating, kole cyangwa ikindi kintu. Iyi nzira izwi kandi nka radiation curing cyangwa radcure kuko UV na EB ari isoko y’ingufu zitanga imirasire. Isoko y’ingufu za UV cyangwa urumuri rugaragara ubusanzwe ni amatara ya mercury afite umuvuduko wo hagati, amatara ya xenon akoresha pulsed, LED cyangwa lasers. EB–bitandukanye na fotoni z’urumuri, zikunze kwinjizwa cyane cyane hejuru y’ibikoresho–ifite ubushobozi bwo kwinjira mu bintu.
Impamvu eshatu zikomeye zo guhindura ikoranabuhanga rya UV na EB
Kuzigama Ingufu no Kongera Umusaruro: Kubera ko sisitemu nyinshi zitagira solvent kandi zigasaba igihe kiri munsi y'isegonda rimwe, umusaruro ushobora kwiyongera cyane ugereranije n'uburyo busanzwe bwo gusiga. Umuvuduko wa interineti wa metero 1,000 ku munota ni rusange kandi ibicuruzwa biba byiteguye gupimwa no koherezwa.

Ikwiriye ibintu byoroshye gukoresha: Sisitemu nyinshi ntizirimo amazi cyangwa ikintu cyose cyangiza. Byongeye kandi, iyi gahunda itanga uburyo bwo kugenzura ubushyuhe bw'amazi, bityo ikaba nziza cyane mu kuyikoresha ku bintu byoroshye gukoresha mu bushyuhe.

Ku bidukikije no ku bikoresha: Ibikoresho bisanzwe ntibigira ingaruka ku bidukikije bityo imyuka ihumanya ikirere n'ubushyuhe ntibihangayikishije. Sisitemu zo gukaraba umucyo zirahuye n'uburyo bwose bwo gukoresha kandi zisaba umwanya muto. Amatara ya UV akunze gushyirwa ku mirongo isanzwe ikoreshwa.

Imiterere ya UV na EB ivurwa
Monomer ni inkingi zoroshye cyane zikorwamo ibikoresho by’umwimerere. Monomer yoroshye ikomoka ku biryo bya peteroli ni ethylene. Igaragazwa na: H2C = CH2. Ikimenyetso "=" kiri hagati y’ibice bibiri cyangwa atome za karuboni kigaragaza ahantu hakora ibintu cyangwa, nk'uko abahanga mu bya shimi babivuga, "umugozi ubiri" cyangwa "ukutuzuza". Ni ahantu nk'aha hashobora gukora ibintu binini cyangwa binini by’ibinyabutabire byitwa oligomer na polymers.

Polymeri ni itsinda ry’ibice byinshi (ni ukuvuga poly-) bisubiramo bya monomeri imwe. Ijambo oligomer ni ijambo ryihariye rikoreshwa mu kwerekana izo polimeri akenshi zishobora kongera gukoreshwa kugira ngo zikore uruvange runini rwa polimeri. Ahantu hataragera kuri oligomeri na monomeri gusa ntabwo hazahura n’ingaruka cyangwa imikoranire.

Mu gihe cy’ubushyuhe bw’imirasire ya electron, electron zifite ingufu nyinshi zikorana neza na atome z’ahantu hatarazura kugira ngo zikore molekile ifite imbaraga nyinshi. Iyo UV cyangwa urumuri rugaragara bikoreshejwe nk'isoko y'ingufu, fotoinitiator yongerwa kuri urwo ruvange. Iyo fotoinitiator ishyizwe ku mucyo, ikora radical yigenga cyangwa ibikorwa bitangira guhuza ahantu hatarazura. Ingano za UV & ude

Oligomer: Imiterere rusange y'ipamba, wino, kole cyangwa ifatanirizo rihujwe n'ingufu zituruka ku mirasire ikoreshwa muri iyo mvange igenwa ahanini na oligomer zikoreshwa muri iyo mvange. Oligomer ni polymeri zifite uburemere buri hasi, inyinshi muri zo zishingiye ku miterere y'imiterere itandukanye. Acrylation ituma itsinda rya "C=C" ritameze neza cyangwa itsinda rya "C=C" rigera ku mpera za oligomer.

Monomer: Monomer zikoreshwa cyane cyane nk'ibigabanya ubushyuhe bw'ibintu bitaravurwa kugira ngo byorohereze ikoreshwa ryabyo. Zishobora kuba zifite imikorere imwe gusa, zirimo itsinda rimwe gusa rikora cyangwa ahantu hataravurwa, cyangwa zifite imikorere myinshi. Uku kutanyurwa kwemerera gukora no kwinjira mu bikoresho byavuwe cyangwa byarangiye, aho guhinduka mu kirere nk'uko bisanzwe ku bicuruzwa bisanzwe. Monomer zifite imikorere myinshi, kubera ko zirimo ahantu habiri cyangwa harenga hakora, zigira isano hagati ya molekile za oligomer n'izindi monomer muri iyo formulaire.

Photoinitiators: Iki kintu gifata urumuri kandi kikaba ari cyo gitanga radicals cyangwa ibikorwa. Free radicals cyangwa ibikorwa ni ubwoko bufite ingufu nyinshi butera guhuza ahantu hatameze neza monomers, oligomers na polymers. Photoinitiators ntizikenewe kuri sisitemu za electron beam cured kuko electrons zishobora gutangiza connecting.

Inyongeramusaruro: Izikunze kugaragara cyane ni izidahungabanya ibidukikije, zirinda ko uruhu rugabanuka mu bubiko no gushya vuba bitewe n'urumuri ruto. Amabara, amarangi, ibintu bigabanya ubushyuhe, ibintu bifasha mu gufatana, ibintu bigabanya ubushyuhe, ibintu bitonyanga n'ibindi bifasha mu gushwanyagurika ni ingero z'ibindi bintu bikoreshwa mu kongeramo ubushyuhe.