amakuru

Abafotora ni iki kandi uzi bangahe kubijyanye no gufotora? Photoinitiator ni ubwoko bwimvange bushobora gukuramo ingufu muburebure bwumurongo runaka muri ultraviolet (250-420nm) cyangwa igaragara (400-800nm) mukarere, bikabyara radicals yubusa, cations, nibindi, bityo bigatangiza monomer polymerisation, guhuza, no gukiza . Nyamara, uburebure bwumurongo bwakiriwe naba fotinitiator zitandukanye buratandukanye.

Itondekanya ryamafoto arashobora kugabanywamo ibice bibiri: radicals yubuntu nubwoko bwa ionic. Radicals yubuntu irashobora kugabanywa mubwoko bwa I nubwoko bwa II; Ubwoko bwa Ionic bushobora kugabanywamo ubwoko bwa cationic na anionic. Photoinitiator niyo ntangiriro yo gushiraho, kandi imikoreshereze yayo ya nyuma iterwa nibikorwa bisabwa hamwe na sisitemu yo gukora. Hano haribifotoza bikwiye gusa, ntamafoto meza.

Photoinitiator iherereye hejuru murwego rwinganda. Ibikoresho fatizo muri UV ikiza inganda ni ibikoresho byibanze byimiti n’imiti yihariye, hamwe na fotinitiator iri hejuru yurwego rwinganda. Urukurikirane rwibintu bya thiol birashobora gukoreshwa nkibikoresho fatizo bifotora, kandi bikoreshwa cyane mubijyanye n'ubuvuzi no gukora imiti yica udukoko; Photoinitiator ikoreshwa mubice bitandukanye nkabafotora hamwe nogufasha imiti, gutwika UV, wino ya UV, nibindi, hamwe na progaramu ya terefone ikubiyemo ibicuruzwa bya elegitoroniki, imitako yo munzu nibikoresho byubaka, ubuvuzi nubuvuzi, nibindi.

Hariho ubwoko butandukanye bwamafoto afite uburyo bwinshi bwo gukoresha, none twahitamo dute? Ibikurikira, reka nkubwire uburyo bwo guhitamo ibicuruzwa byinshi bikunze guhura nabyo.

Icyambere, ndashaka kumenyekanishaifoto 819, irashobora gukoreshwa mumabara UV yakize. Imyenda ya UV, kubera imikorere myiza n’umusaruro unoze, yakoreshejwe cyane ku bishishwa bya pulasitiki by’ibikoresho bitandukanye bya elegitoroniki n’ibikoresho byo mu rugo. Nyamara, gukomera kwimbitse ya UV nyuma yo kurangi ntabwo ari byiza, bikaviramo gufatana nabi kwa firime no gutatana nabi no gutunganya pigment hamwe na resin ya UV, bigira ingaruka zikomeye kumiterere yimyenda, Kubwibyo, inzira yubwubatsi gakondo ni ukubanza gukoresha ibishishwa bishingiye. primer yamabara kugirango asige amabara, hanyuma ushyire UV varnish nyuma yo guteka kugirango utezimbere ibintu bitandukanye bifatika bya firime irangi.

Ifoto 184ni uburyo bwiza kandi bwumuhondo bwihanganira radical (I) ubwoko bukomeye bwa fotoinitiator hamwe nibyiza byo kubika umwanya muremure, gukora neza cyane, hamwe nubunini bwa UV. Ikoreshwa cyane cyane muri UV gukiza prepolymers idahagije (nka acrylic esters) hamwe na vinyl monomers imwe cyangwa nyinshi ikora na oligomers, kandi irakwiriye cyane cyane kubitwikiriye hamwe na wino bisaba urwego rwumuhondo mwinshi.

Ifoto ya TPO-Lni ubwoko bwa fotoinitiator yamazi, ikoreshwa muri sisitemu yo gukora hamwe n'umuhondo muke n'umunuko muke. Bikunze gukoreshwa mubudodo bwa silike yerekana icapiro, Icapiro rya Icapiro rya Icapiro, wino yo gucapa flexographic, fotoreiste, varnish, isahani yo gucapa nibindi bice.

Uwitekaifoto ya TPOikoreshwa cyane muri sisitemu yera, kandi irashobora gukoreshwa mugukiza UV gukiza, gusiga wino, UV ikiza imiti, Optical fibre coatings, Photoresists, plaque Photopolymerisation, resinolithographic resin, compte, yuzuza amenyo, nibindi.

Photoinitiator 2959 nigikorwa cyiza kitari umuhondo fotinitiator ifite ibikorwa byinshi, impumuro nke, kutagira umuhondo, guhindagurika gake, kutumva polimeri ya ogisijeni, hamwe no gukiza neza hejuru. Amatsinda adasanzwe ya hydroxyl ashobora gukemuka byoroshye mumazi ashingiye kumazi. Cyane cyane kibereye kumazi ashingiye kuri acrylic est est na polyester idahagije. Photoinitiator 2959 nayo ni igiti cyemejwe na sisitemu yo gutanga ibyemezo bya FDA kubwo kudahuza ibiryo.

Benzophenoneni ifoto ya radical yubuntu ikoreshwa cyane cyane muri sisitemu yo gukiza ya UV yubusa nka coatings, wino, ibifata, nibindi. Iki gicuruzwa kandi ni styrene polymerisation inhibitor hamwe nogukosora impumuro nziza, ishobora gutanga impumuro nziza, kandi ikoreshwa cyane muri parufe nisabune.

Ibicuruzwa bisa na fotinitiator ni ultraviolet. Rimwe na rimwe, abantu ntibashobora gutandukanya byombi.Imashini ya UVirashobora gusimbuza amafoto. Kuberako imashini ya UV nubwoko bukoreshwa cyane bwumucyo kandi birashobora guhuzwa cyangwa gusimbuza fotinitiator kugirango ikoreshwe, kandi nibikorwa byayo nibyiza cyane. Photoinitiator ikoreshwa muburyo bwo gufotora, kuri wino, gutwikira, kandi irashobora no gukoreshwa mubikorwa byinganda na elegitoroniki. Imashini ya UV ifite intera nini yo gukoresha, ikoreshwa cyane mu kwisiga hamwe nibisabwa byujuje ubuziranenge. Hagati aho, igiciro cyibikoresho bya ultraviolet kiri hejuru cyane, mugihe ifoto yerekana amafoto ari make. Urashobora guhitamo ibicuruzwa bijyanye ukurikije ibyo ukeneye.

Turi abanyamwuga batangiza umwuga. Usibye ibicuruzwa byavuzwe haruguru, dufite n'ibicuruzwa bisa bikurikira: