Xa ukhusela izinto kunye neemveliso kwimiphumo eyingozi yokukhanya kwelanga, kukho izongezo ezibini ezisetyenziswa ngokuqhelekileyo: i-Absorbents ye-UV kunyeizinzisi ukukhanya. Nangona zivakala zifana, ezi zinto zimbini zahluke kakhulu kwindlela ezisebenza ngayo kunye nenqanaba lokhuseleko ezibonelela ngalo.

Njengoko igama lisitsho, izinto zokufunxa i-UV zifunxa imitha ye-ultraviolet (UV) evela elangeni. imitha ye-UV yaziwa ngokubangela ukuwohloka kwezinto ezininzi, ngakumbi ezo zibekwe elangeni ixesha elide. Izixhobo zokufunxa imitha yeUV zisebenza ngokufunxa imitha yeUV kwaye iyiguqule ibe bubushushu, obuthi butshatyalaliswe ngokungenabungozi.

Ngakolunye uhlangothi, ii-photostabilizers zisebenza ngokuthintela ukuthotywa kwezinto ezibangelwa yimitha ye-ultraviolet kunye nokukhanya okubonakalayo. I-Absorbers ye-UV igxile kuphela ekukhuseleni kwimitha ye-UV, ngelixa ii-photostabilizers zibonelela ngokhuseleko olubanzi. Abagcini nje ngokufunxa imitha ye-UV, baphinde babambe iiradicals zasimahla eziveliswa kukukhanya okubonakalayo.

Indima yeizinzisi ukukhanyakukunciphisa ii-radicals zamahhala kwaye zithintele ukuba zibangele umonakalo kwizinto eziphathekayo. Oku kubenza basebenze ngakumbi ekuthobeni inkqubo yokuthotywa kwezinto ezihlala zisesimeni esingaphandle. Ngokuthintela ukubunjwa kwama-radicals amahhala, i-stabilizers yokukhanya inceda ukwandisa ubomi bezinto eziphathekayo kunye nokugcina ingqibelelo yayo yesakhiwo.

Ukongezelela, i-stabilizers yokukhanya ihlala idibaniswa kunyeiAbsorber UVukunika ukhuseleko olupheleleyo kwimiphumo eyonakalisayo yelanga. Ngelixa i-Absorbers ye-UV ijongana neziphumo zemitha ye-UV, i-photostabilizers yongeza umaleko owongezelelweyo wokukhusela ngokukhupha ii-radicals zamahhala ezenziwe kukukhanya okubonakalayo. Ngokusebenzisa izongezo zombini kunye, izinto eziphathekayo zikhuselwe kuluhlu olubanzi lwamaza ayingozi.

Omnye umahluko phakathi kwe-UV absorbers kunyeizinzisi ukukhanyakukusetyenziswa kwazo kunye nokuhambelana nezixhobo ezahlukeneyo. I-Absorbers ye-UV isetyenziswa ngokuqhelekileyo kwiingubo ezicacileyo, iifilimu kunye neepolymers kuba zenzelwe ukuba zibonakale kwaye zingachaphazeli ukubonakala kwezinto. Izizinzisi zokukhanya, kwelinye icala, ziguquguquka ngakumbi kwaye zinokusetyenziswa kuluhlu olubanzi lwezicelo, kubandakanya iiplastiki, irabha, iipeyinti, kunye namalaphu.

Ekugqibeleni, nangona zombini i-Absorbers ye-UV kunye ne-photostabilizers zisetyenziselwa ukukhusela izinto ezivela ekuthotyweni okubangelwa ukukhanya kwelanga, ziyahluka kwindlela yazo yokusebenza kunye nenqanaba lokukhusela. I-Absorpr ye-UV ifunxa imitha ye-UV, ngelixa i-photostabilizers inqanda ukuthotywa kwemitha ye-UV kunye nokukhanya okubonakalayo ngokumisa ii-radicals zamahhala. Ngokuqonda umahluko phakathi kwezi zongezo, abavelisi banokukhetha ukhetho olufanelekileyo kwisicelo sabo esithile kwaye baqinisekise ukhuseleko olungcono kakhulu lwezinto zabo.