Ayini ama-photoinitiators futhi kungakanani okwaziyo ngama-photoinitiators? Ama-Photoinitiators uhlobo lwenhlanganisela ekwazi ukumunca amandla kubude obuthile be-wavelength endaweni ye-ultraviolet (250-420nm) noma ebonakalayo (400-800nm), ikhiqize ama-radicals mahhala, ama-cations, njll., futhi ngaleyo ndlela iqalise i-monomer polymerization, crosslinking, kanye nokwelapha . Kodwa-ke, ama-wavelengths amuncwa ama-photoinitiators ahlukene ahlukile.
Ukuhlukaniswa kwama-photoinitiators kungahlukaniswa ikakhulukazi izigaba ezimbili: ama-radicals mahhala nezinhlobo ze-ionic. Ama-radicals wamahhala angahlukaniswa abe Uhlobo I kanye Nohlobo II; Izinhlobo ze-Ionic zingahlukaniswa zibe izinhlobo ze-cationic ne-anionic. I-photoinitiator iyindawo yokuqala yokwakhiwa, futhi ukusetshenziswa kwayo kokugcina kuthonywa yizidingo zokusebenza kanye nesistimu yokuqamba. Kukhona kuphela i-photoinitiator efaneleke kakhulu, asikho isithwebuli esingcono kakhulu.
Ama-Photoinitiators atholakala enhla nomfula ochungechungeni lwezimboni. Izinto ezisetshenziswayo ochungechungeni lwemboni yokwelapha ye-UV ikakhulukazi ziyizinto zamakhemikhali eziyisisekelo namakhemikhali akhethekile, anama-photoinitiators atholakala phezulu nochungechunge lwezimboni. Uchungechunge lwezinhlanganisela ze-thiol zingasetshenziswa njengezinto zokusetshenziswa zama-photoinitiators, futhi zisetshenziswa ikakhulukazi emkhakheni wezokwelapha kanye nokukhiqizwa kwezibulala-zinambuzane; Ama-Photoinitiators asetshenziswa emikhakheni ehlukahlukene njengama-photoresists namakhemikhali asekelayo, okokugcotshwa kwe-UV, oyinki be-UV, njll., nezinhlelo zokusebenza ezibulalayo ezihlanganisa imikhiqizo ye-elekthronikhi, umhlobiso wasekhaya nezinto zokwakha, imithi nokwelashwa, njll.
Kunezinhlobo ezahlukahlukene zama-photoinitiators anezinhlobonhlobo zokusetshenziswa, ngakho-ke kufanele sizikhethe kanjani? Okulandelayo, ake ngikutshele ukuthi ungayikhetha kanjani imikhiqizo embalwa ovame ukuhlangana nayo.
Okokuqala, ngithanda ukwethulai-photoinitiator 819, engasetshenziselwa izigqoko zepulasitiki ezilashwe nge-UV ezinombala. Izembatho ze-UV, ngenxa yokusebenza kwazo okuhle kakhulu nokukhiqiza kahle, zisetshenziswe kakhulu kumagobolondo epulasitiki emikhiqizo ehlukahlukene yemishini kagesi neyendlu. Kodwa-ke, ukuqina okujulile kwezingubo ze-UV ngemuva kokufakwa kombala akukuhle, okuholela ekunamatheleni kwefilimu okumpofu nokuhlakazeka okungalungile kanye nokuhlelwa kwezingulube ngama-resin e-UV, okuthinta kakhulu ukubukeka kwezingubo, Ngakho-ke, inqubo yokwakha yendabuko iwukuqala ukusebenzisa i-solvent esekelwe. i-primer enemibala yokufaka umbala, bese usebenzisa i-varnish ye-UV ngemuva kokubhaka ukuze uthuthukise izici ezihlukahlukene ezibonakalayo zendawo yefilimu kapende.
I-Photoinitiator 184iyi-free radical (I) yohlobo lwe-photoinitiator eqinile esebenza kahle futhi ephuzi enezinzuzo zesikhathi eside sokulondoloza, ukusebenza kahle kokuqala kokuqala, kanye nebanga elibanzi lokumuncwa kwe-UV. Isetshenziselwa kakhulu ukwelapha i-UV yama-prepolymers angagcwalisiwe (njengama-acrylic esters) kanye nama-vinyl monomers nama-oligomers asebenzayo angawodwa noma amaningi, futhi ifaneleka ngokukhethekile ukumbozwa noyinki okudinga idigri ephezulu yokuphuzi.
I-Photoinitiator TPO-Liwuhlobo lwe-photoinitiator oluwuketshezi, olusetshenziswa ohlelweni lokubunjwa olunobuphuzi obuphansi kanye nephunga eliphansi. Ivamise ukusetshenziswa ku-inki yokuphrinta yesikrini sikasilika, uyinki yokuphrinta ye-Planographic, uyinki yokuphrinta ye-flexographic, i-photoresist, i-varnish, ipuleti lokuphrinta nezinye izinkambu.
Ii-photoinitiator TPOisetshenziswa kakhulu ezinhlelweni ezimhlophe, futhi ingasetshenziswa embotsheni yokwelapha ye-UV, oyinki bokuphrinta, okunamathelayo kwe-UV elaphayo, i-Optical fibre coatings, ama-photoresists, amapuleti e-photopolymerization, ama-sterolithographic resins, ama-composites, izigcwalisi zamazinyo, njll.
I-Photoinitiator 2959 iyisithwebuli sezithombe esingaphuzi esisebenza kahle, esinephunga eliphansi, esingaphuzi, siguquguquke, singazweli ku-polymerization komoyampilo, kanye nokusebenza kahle kokwelapha kwendawo ephezulu. Amaqembu e-hydroxyl ahlukile ancibilika kalula kuma-coatings asekelwe emanzini. Ikakhulukazi ifaneleka emanzini e-acrylic esters kanye nama-polyester angasetshenzisiwe. I-Photoinitiator 2959 iphinde ibe ingcina egunyazwe wuhlelo lwesitifiketi se-FDA ngokuthintana ngqo nokudla.
I-Benzophenoneiyi-free radical photoinitiator esetshenziswa kakhulu ezinhlelweni zokuphulukisa ze-UV zama-radical mahhala njengezingubo zokunamathela, oyinki, okokunamathelisa, njll. Iphinde ibe yindawo emaphakathi ku-organic pigments, imithi, izinongo, nezibulala-zinambuzane. Lo mkhiqizo futhi uyi-styrene polymerization inhibitor kanye ne-fragrance fixative, enganikeza iphunga ukunambitheka okumnandi, futhi isetshenziswa kakhulu kumakha kanye nensipho yensipho.
Imikhiqizo efana nama-photoinitiators i-ultraviolet absorbers. Ngezinye izikhathi, abantu ngokuvamile abakwazi ukuhlukanisa phakathi kwalokhu kokubili.Ama-Absorbers we-UVangashintsha ama-photoinitiators. Ngoba ama-Absorbers e-UV awuhlobo olusetshenziswa kakhulu lwesiqiniseko sokukhanya futhi angahambisana noma ashintshe ama-photoinitiators ukuze asetshenziswe, nokusebenza kwawo nakho kuhle kakhulu. Ama-Photoinitiators asetshenziselwa ngokukhethekile ukuthwebula izithombe, kumayinki, ama-coatings, futhi angasetshenziswa nasezindaweni zezimboni neze-elekthronikhi. Ama-absorber ama-UV anobubanzi obukhulu bokusetshenziswa, ikakhulukazi asetshenziswa kuzimonyo ezinezidingo zekhwalithi ephezulu. Phakathi naleso sikhathi, intengo ye-ultraviolet absorbers iphakeme kakhulu, kuyilapho ama-photoinitiators ephansi kakhulu. Ungakhetha imikhiqizo ehambisanayo ngokuya ngezidingo zakho.
Singumkhiqizi weziqalisi ochwepheshe. Ngaphezu kwemikhiqizo eshiwo ngenhla, siphinde sibe nemikhiqizo efanayo elandelayo:
| Inombolo ye-CAS. | Igama Lomkhiqizo |
| 162881-26-7 | I-Phenylbis(2,4,6-trimethylbenzoyl)i-phosphine oxide |
| 947-19-3 | 1-Hydroxycyclohexyl phenyl ketone |
| 84434-11-7 | I-Ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate |
| 75980-60-8 | I-Diphenyl(2,4,6-trimethylbenzoyl)i-phosphine oxide |
| 125051-32-3 | I-Bis(eta.5-2,4-cyclopentadien-1-yl)-bis [2,6-difluoro-3- (1H-pyrrol-1-yl)phenyl]titanium |
| 75980-60-8 | 2,4,6-Trimethyl benzoyldiphenyl phosphine oxide |
| 162881-26-7 | I-Bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide |
| 84434-11-7 | I-Ethyl(2,4,6-trimethylbenzoyl)phenylphosphinate |
| 5495-84-1 | 2-Isopropylthioxanthone |
| 82799-44-8 | 2,4-Diethylthioxanthone |
| 71868-10-5 | 2-Methyl-1- [4- (methylthio)phenyl]-2-morpholinopropane-1-one |
| 119313-12-1 | 2-Benzyl-2-dimethylamino-1- (4-morpholinophenyl)butanone |
| 947-19-3 | 1-Hydroxy-Cyclohexyl Phenyl Ketone |
| 7473-98-5 | 2-Hydoy-2-mey-1-phenyppae–one |
| 10287-53-3 | I-Ethyl4-dimethylaminobenzoate |
| 478556-66-0 | [1-9-e thy-6-2-methybenzoycabazo-3-yethylideneamino] acetate |
| 77016-78-5 | 3-benzo-7-dehyamnocoumrn |
| 3047-32-3 | 3-Ethyl-3- (hydroxymethyl)oxetane |
| 18934-00-4 | 3,3′-[Oxybis(methylene)]bis[3-ethyloxetane] |
| 2177-22-2 | 3-Ethyl-3- (chloromethyl)oxetane |
| 298695-60-0 | 3-Ethyl-3-[(2-ethylhexyloxy)methyl]oxetane |
| 18933-99-8 | 3-Ethyl-3-[(benzyloxy)methyl]oxetane |
| 37674-57-0 | 3-Ethyl-3- (methacryloyloxymethyl)oxetane |
| 41988-14-1 | 3-Ethyl-3- (acryloyloxymethyl)oxetane |
| 358365-48-7 | I-Oxetane Biphenyl |
| 18724-32-8 | I-Bis[2-(3,4-epoxycyclohexyl)ethy]tetramethyldisiloxane |
| 2386-87-0 | 3,4-Epoxycyclohexylmethyl 3,4-epoxycyclohexanecarboxylate |
| 1079-66-9 | I-Chlorodiphenyl phosphine |
| 644-97-3 | I-Dichlorophenylphosphine |
| 938-18-1 | 2,4,6-Trimethylbenzoyl chloride |
| 32760-80-8 | I-Cyclopentadienyliron(i) i-hexa-fluorophosphate |
| 100011-37-8 | I-Cyclopentadienyliron(ii) i-hexa-fluoroantimonate |
| 344562-80-7 & 108-32-7 | 4-Isobutylphenyl-4′-methylphenyliodonium I-hexafluorophosphate ne-Propylene carbonate |
| 71786-70-4 & 108-32-7 | I-Bis(4-dodecylphenyl)iodonium hexaflurorantimonate ne-Propylene carbonate |
| 121239-75-6 | (4 -Ocyoxyphenyphenyodonum hexafluoroantimonate |
| 61358-25-6 | I-Bis(4-tert-butylphenyl) iodonium hexafluorophosphate |
| 60565-88-0 | I-Bis(4-methylphenyl) iodonium hexafluorophosphate |
| 74227-35-3 & 68156-13-8 & 108-32-7 | Ingxube ye-Sulfonium Hexafluorophosphate ne-Propylene carbonate |
| 71449-78-0 &89452-37-9 & 108-32-7 | Ingxube ye-Sulfonium Hexafluoroantimonate ne-Propylene carbonate |
| 203573-06-2 | |
| 42573-57-9 | 2-2- 4-Mehoxypheny -2-yvny-46-bs (trichloromethyl)1,3,5-triazine |
| 15206-55-0 | I-Methyl benzoylformate |
| 119-61-9 | I-Benzophenone |
| 21245-02-3 | 2-Ethylhexyl 4-dimethylaminobenzoate |
| 2128-93-0 | 4-Benzoylbiphenyl |
| 24650-42-8 | I-Photoinitiator BDK |
| 106797-53-9 | 2-Hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone |
| 83846-85-9 | 4-(4-Methylphenylthio)benzophenone |
| 119344-86-4 | PI379 |
| 21245-01-2 | Padimate |
| 134-85-0 | 4-Chlorobenzophenone |
| 6175-45-7 | 2,2-Diethoxyacetophenone |
| 7189-82-4 | 2,2′-Bis(2-chlorophenyl)-4,4′,5,5′-tetraphenyl-1,2′-biimidazole |
| 10373-78-1 | I-Photoinitiator CQ |
| 29864-15-1 | 2-Methyl-BCIM |
| 58109-40-3 | I-Photoinitiator 810 |
| 100486-97-3 | I-TCDM-HABI |
| 813452-37-8 | I-OMNIPOL TX |
| 515136-48-8 | I-Omnipol BP |
| 163702-01-0 | KIP 150 |
| 71512-90-8 | I-Photoinitiator ASA |
| 886463-10-1 | I-Photoinitiator 910 |
| 1246194-73-9 | I-Photoinitiator 2702 |
| 606-28-0 | I-Methyl 2-benzoylbenzoate |
| 134-84-9 | 4-Methylbenzophenone |
| 90-93-7 | 4,4′-Bis(diethylamino) benzophenone |
| 84-51-5 | 2-Ethyl anthraquinone |
| 86-39-5 | 2-Chlorothioxanthone |
| 94-36-0 | I-benzoyl peroxide |
| 579-44-2/119-53-9 | I-Benzoin |
| 134-81-6 | Benzil |
| 67845-93-6 | UV-2908 |
Isikhathi sokuthumela: Aug-04-2023