Isibane se-UV se-UV njengomthombo wokukhanya oqhelekileyo, umgaqo wayo wokuphilisa ubhekisa kwii-inks ze-UV emva kokuba i-UV irradiation ibangelwe yifotoinitiator, ngaloo ndlela ivelisa iiradicals zasimahla okanye ii-ion.Ezi free radicals okanye ion kunye pre-polymers okanye monomers unsaturated kwi-double bond cross-linking reaction, ukwakheka kofuzo monoma, ezi gene monomer ziqala chain reaction ukuvelisa izinto eziqinileyo polymer kude molekyuli.
Kukho izinto ezininzi ezibalulekileyo ezichaphazela ukunyangwa kwe-UV LED:
Iimpawu zezinto eziphathekayo
Isantya sokunyanga kunye nokusebenza kweIzixhobo zokunyanga ze-UV ze-LEDubukhulu becala kuxhomekeke kubunzima bokukhanya ukuqalisa iimolekyuli kwizinto zokunyanga.Ukunyangwa kwe-UV kugqitywa kukungqubana phakathi kweefotoni kunye neemolekyuli.Ukukhanya kubangela ukuba iimolekyuli zisasazeke ngokufanayo kwizinto eziphathekayo.Ukongeza kwiimpawu zezixhobo zokunyanga, iimpawu ze-optical kunye ne-thermodynamic zezinto zokunyanga kunye nokusebenzisana kwazo kunye namandla akhanyayo kunempembelelo ebalulekileyo kwinkqubo yokunyanga.
Isantya sokufunxa ngokweSpectral
Ubungakanani bamandla okukhanya afunxwe ziingubo ze-UV njengoko zisanda kubunzima bubizwa ngokuba yi-spectral absorption rate.Okukhona amandla afunxwa kufutshane nomphezulu, kokukhona amandla amancinci agcinwa kumaleko anzulu.Nangona kunjalo, le meko iyahluka kumaza ahlukeneyo.Umlinganiselo opheleleyo wokufunxa i-spectral uquka imiphumo yezinto ezibangela ukukhanya, izinto ze-monomolecular, i-oligomers, izongezo kunye ne-pigments.
Ukucamngca kunye nokuchithachitha
Esikhundleni sokufunxa, amandla okukhanya achaphazeleka ngokutshintsha kwendlela ye-inki, okubangela ukubonakalisa kunye nokusabalalisa.Oku kubangelwa ngokubanzi zizinto zematrix okanye iipigments kwizinto ezinyangekayo.Ezi zinto zinciphisa ubungakanani bamandla e-UV afikelela kumaleko anzulu, kodwa aphucule ukusebenza kakuhle kokunyanga kwindawo yokusabela.
Izinga lokufunxa kwe-infrared kunye nobude obufanelekileyo be-UV
Ubushushu bunefuthe elibonakalayo kwisantya sokuphendula kokunyanga, kwaye ukunyuka kobushushu ngexesha lokusabela nako kudlala indima.Ii-inks ze-UV ezahlukeneyo zifuna ubude obuhlukeneyo be-UV ukunyanga.Xa ukhetha iyunithi yokunyanga, kubalulekile ukukhetha enye ehambelana nobude obufunwa yi-UV.Ukusebenzisa aIyunithi yokunyanga ye-UV LEDngobude obuchanekileyo buya kunika iziphumo ezingcono zokunyanga.
Ixesha lokuposa: Jan-17-2024