Yiziphi izinto ezingalapheka nge-UV LED?

Ezweni elinezici eziningi zokukhiqiza okuthuthukile, ukuphrinta kwe-3D, i-elekthronikhi, kanye nokumbozwa kwezimboni, yiziphi izinto ezingalapheka nge-UV LED ziletha inselele. Ubuchwepheshe bokwelapha be-UV LED sebube yisihloko esishisayo, futhi ngesizathu esihle: kuyashesha, ukonga amandla, kukhiqiza ukushisa okuphansi, futhi kunikeza indawo yokusebenza ehlanzekile. Kodwa-ke, yiziphi izinto ezingasetshenziswa yile ndlela yokuphulukisa ukukhanya? Kulesi sihloko, sizoxoxa ngezinto zokwelapheka ze-UV LED, izakhiwo zazo zamakhemikhali, izindawo zohlelo lokusebenza, kanye nemininingwane mayelana nokwandisa amadivayisi obuchwepheshe emhlabeni jikelele.

Izici ze-UV LED Curing: Kuyini?

Ukuphulukiswa kwe-UV LED, njengoba igama lisho, ukuphulukiswa kwezinto ezisetshenziswa ukukhanya kwe-Ultraviolet (UV). Lokhu kukhanya kususelwa kuma-diode akhipha ukukhanya (ama-LED) futhi kubangela ukusabela okuthile kwe-photochemical. Kumongo wethu, ukusabela kwe-photochemical ukuguqulwa kwezinto eziwuketshezi ezifana nama-resins, ama-adhesives, ukumboza, nama-inks abe amafomu aqinile. Lokhu kufezeka ngenxa yamakhemikhali akhethekile aziwa ngokuthi ama-photoinitiators, amunca ukukhanya kwe-UV futhi akhuthaze i-polymerisation nokuxhumanisa isiphambano.

Izinzuzo zezinhlelo ze-LED phezu kwezibani zendabuko ze-mercury UV

Ngokungafani nezibani zendabuko ze-mercury UV, izinhlelo ze-UV LED zinikeza izinzuzo ze-

 Low Temperature Curing

• Iminyaka emide yenkonzo engaba ngamahora ayizinkulungwane ezingamashumi amabili noma ngaphezulu.
• Ukusetshenziswa kwamandla kanye nokukhishwa, ngokuya ngezici ezinobungani bemvelo, kuyancipha.
• Ukusetshenziswa kwezinto ezibonakalayo ze-Eco-friendly, okuhloswe ngazo ukukhishwa okuncane kwe-VOC.

Izinto eziyinhloko ezitholakalayo zobuchwepheshe be-UV LED

Inqubo yokuphulukiswa kwe-UV LED yenza ukukhiqizwa kwezimboni kube lula, kusheshe futhi kusebenza kahle. Ngezansi kunezigaba zezinto ezingathola ukwelashwa kwe-UV LED.

Curable UV Resins 

Ama-resin aphulukkayo e-UV ayisisekelo sezinye izicelo zokuphulukiswa kwe-LED. Kubhekwa njengesisekelo sezinketho eziningi ezahlukahlukene zokuphulukisa ze-LED, lezi zinto zithola i-polymerisation esheshayo lapho zivezwa ekukhanyeni kwe-UV LED. Lokhu kuholela ekwakhiweni kokuqeda okuqinile nokuhlala isikhathi eside noma izakhiwo. Ezinye izinhlobo ezijwayelekile zihlanganisa:

• Ama-resin e-Acrylic, aziwa ngokuphulukisa okusheshayo kanye nezakhiwo ezinkulu zokunamathela ebusweni.
• Ama-acrylates e-urethane, aziwa kakhulu ngokuguquguquka kwawo kanye nekhono eliphansi lokuklwebha, okubenza balungele ukumbozwa nama-inks.
• Ama-resin e-epoxy anamandla futhi amelana namakhemikhali namazinga okushisa aphezulu.
• Ama-acrylates e-polyester asiza ukunikeza ukuqedwa okubushelelezi kokumboza nokulaminatha.
• Ama-amino acrylates, athola inani eliphakeme lokusetshenziswa kwezicelo eziqinile nezicwebezelayo eziphezulu.
• I-Vinyl ester resins, eqinisekisiwe ukuthi inokumelana nokugqwala okuphansi.

Zonke lezi zinhlobo zama-resin ziqinisekisa ukukhetheka okulungiselelwe ukumelana kahle kwemishini nokushisa, kwamakhemikhali ezimbonini ezisetshenziswa kabanzi njengezimoto ne-elekthronikhi.

UV Adhesives Curable

Amadivaysi wezokwelapha, izingxenye zezimoto, ama-optics, kanye ne-elekthronikhi konke kusetshenziswa kakhulu izinamathiselo ze-UV LED. Lezi zinamathelayo ziwusizo ngenxa yokuphulukiswa okusheshayo, ukuncipha okuphansi, nezibopho eziqinile ezindaweni okunzima ukunamathela.

Izibonelo zihlanganisa: 

• Izinamathiselo ze-UV zokubopha ingilazi nepulasitiki 

• Izinamathiselo ezihambisanayo ze-biocompatible zamadivayisi wezokwelapha

• Izinamathiselo ezibonakalayo zamaphaneli okubonisa namalensi 

UV Curable Coating

Ukumbozwa kwe-UV nokumbozwa kwe-acrylate kunezela ubuhle futhi kwandisa amandla ngokunikeza ukumelana nokuklwebha namakhemikhali. Zingasetshenziswa ezinkuni, ipulasitiki, ingilazi, insimbi, nezinto ezihlanganisiwe futhi zingakha i-gloss ephezulu ne-matte finishes.

Popular Applications: 

• Ifenisha  yezinkuni nezithelo

• Ukuqedwa kwezimoto

• Ingilazi ne-elekthronikhi yokuzivikela

UV Curable Inks

Ama-inki we-UV ome ngokushesha, ahlinzeka ngokukhiqizwa kombala okuhle kakhulu nemibala egqamile. Ukusetshenziswa kwabo kufaka phakathi: 

• Ukuphrinta kwe-inkjet ne-flexo

• Ukulebula nokupakisha 

• Ukuphrinta kukasilika nokuphrinta kwe-offset

Iphepha, amapulasitiki, izinsimbi, nengilazi zingaphrinta kusetshenziswa lezi zinkinobho ngoba zihlala isikhathi eside kakhulu, futhi ikhwalithi yazo yokuphrinta ayinakuqhathaniswa.

The Tuning of Light Wavelengths and its Benefits

Izinhlelo ze-UV LED zisebenza kuma-wavelengths athile okubhekiswe ku-spectra yokumuncwa kwama-photoinitiators ahlukene ezintweni ezilaphekayo ze-UV. Ama-wavelengths ajwayelekile futhi asebenzayo kakhulu wokuphulukiswa kwezimboni ze-UV LED yilezi ezilandelayo: 

•          I-365nm - Isetshenziswa kaningi kakhulu ekugqokeni okujiyile kanye nezinye izinamathiselo;  

•          I-385nm - I-wavelength yendawo yonke ebusa izinhlelo zokusebenza eziningi;  

•          395nm - Okungcono kakhulu ekwelapheni ngenhloso ejwayelekile, ikakhulukazi ekunyatheliseni;  

•          I-405nm - Kuyasiza kwezinye izithombe ezithile kanye nezinye izithombe zokuphrinta ze-DLP 3D. 

Lawa ma-wavelengths awela kakhulu ebangeni le-UVA (315-400nm), lapho liyingozi kakhulu kune-UVB (280-315) noma i-UVC (100-280), kepha lisenamandla anele ukusiza ekuphenduleni kokuqhekeka kwe-polymerisation. Ukufana okuphelele phakathi kokukhishwa kwe-wavelength ye-UV LED kanye nesiqongo sokumuncwa kwama-photoinitiators kubalulekile ukuze i-polymerisation isebenze kahle futhi ephelele kanye nokuxhumanisa isiphambano. Ngale ndlela, isakhiwo esiminyene se-propane esenziwe ngenethiwekhi enezinhlangothi ezintathu zamaketanga abizwa ngokuthi ama-polymers senziwa, ngaleyo ndlela siphendule uketshezi lube yinto eqinile enezakhiwo ezithuthukisiwe. 

Izici zobuchwepheshe ze-UV LED Curing 

Isayensi ngemuva kwezinto ezibonakalayo inikeza ukucaca okungcono ekukhetheni impahla. 

Photoinitiators 

Ngabe lawo makhemikhali amunca imisebe ye-ultraviolet futhi aqale inqubo ye-polymerisation, ethize ekwakhiweni kwezinto ezibonakalayo, adinga ama-photoinitiators ahambisana nama-wavelengths e-LED, njenge-365nm, 385nm, 395nm, ne-405nm.

Polymerisation and Cross-Linking

Ukuphulukiswa kwe-UV kusebenzisa ama-monomers nama-oligomers ukwenza ama-polymers aqinile. Ukuxhuma isiphambano kunezela amandla amaningi esakhiweni futhi kuthuthukise izakhiwo ezinjenge:

• Ubulukhuni

• Ukunamathela

• Ukumelana namakhemikhali

• Ukumelana nokuklwebha

Curing Speed and Efficiency

Ukuphulukiswa kwe-UV LED kuyindlela esheshayo yokuphulukisa. Ukumbozwa okuningi nokunamathisela kuphulukisa ngaphansi komzuzwana ongu-1, okuthuthukisa ukudlula futhi kwehlise izindleko zabasebenzi.

Low Temperature Curing

Ama-LED e-UV, ngokungafani nezibani ze-mercury, awakhiqizi ukushisa ngokweqile. Lokhu kwenza kube lula ukuphulukisa kuma-substrates azwela ukushisa njengamapulasitiki, i-elekthronikhi, nezindwangu.

Izinzuzo Zemvelo

• Ukukhishwa kwe-VOC okuphansi noma okuphansi

• Ukusebenza kahle kwamandla

• Isikhathi eside sokuphila kwemishini

• Imfucuza enobungozi obuncane

Indlela yokukhetha izinto ezihambisanayo ne-UV LED?

Nazi izincomo ezimbalwa:

1. Qinisekisa ukuthi i-wavelength iyahambisana: Hlola ukuthi ngabe i-resin noma ukunamathela kuyahambisana yini nobude be-wavelength obuvela ohlelweni lwakho lwe-UV LED.

2. Mayelana nezidingo ze-substrate: Cabanga ngokuchayeka emvelweni, ukunamathela nokuguquguquka.

3. Hlola izici zemishini: Thola izinga lapho ubulukhuni, ukuqina, noma ukumelana kwamakhemikhali kufiswa.

4. Isikhathi Sokuphulukisa: Khetha ukwakheka okuhambisana nezindinganiso zakho zekhwalithi nesikhathi sokuphenduka.

Izinzuzo ze-UV LED Curing Technology

Ngenxa yesidingo esikhulayo sokukhiqiza okusebenzayo kwamandla, okuluhlaza futhi okusheshayo, ukwelashwa kwe-UV LED kuhola ushintsho. Kushintsha indlela esigqoka ngayo, esibopha futhi sikhiqiza ukuphrinta.

Ukuqonda ukuthi yiziphi izinto ezingalapheka nge-UV LED kuvumela abakhiqizi nonjiniyela ukuthi benze izinto ezintsha ngemikhiqizo nezinto zokuzilibazisa. 

Isiphetho  

Izicelo ezikhulayo ze-UV LEDs zisukela kuma-resin kuya kuma-adhesives, ukumboza, ngisho nama-inks. Kungakhathaliseki ukuthi isetshenziswa 3D ukunyathelisa, amazinyo amazinyo, coatings zezimboni, noma encapsulating electronics, UV LED ukwelapha inikeza isivinini engenakuqhathaniswa nokunemba eceleni ukusebenza kahle amandla.  Uhlu izinto ukuthi kungenziwa ukwelashwa nge UV LED uya ngalé ukuhambisana amakhemikhali; Ihlanganisa izidingo ezithile zomkhakha kanye nezinhloso zayo zokuqamba. Yini imicabango yakho?