Xa kukhuselwa izinto kunye neemveliso kwimiphumo emibi yokukhanya kwelanga, kukho izongezo ezimbini ezisetyenziswa rhoqo: ii-UV absorbers kunyeiziqinisi zokukhanyaNangona zivakala zifana, ezi zinto zimbini zahlukile kakhulu kwindlela ezisebenza ngayo kunye nenqanaba lokhuseleko ezilunikayo.

Njengoko igama lisitsho, ii-UV absorbers zifunxa imitha ye-ultraviolet (UV) evela elangeni. Imitha ye-UV yaziwa ngokubangela ukuwohloka kwezinto ezininzi, ingakumbi ezo zichatshazelwa lilanga ixesha elide. Ii-UV absorbers zisebenza ngokufunxa imitha ye-UV kwaye ziyiguqule ibe bubushushu, obuthi emva koko buphele bungabi nabungozi.

Kwelinye icala, ii-photostabilizer zisebenza ngokuthintela ukuwohloka kwezinto ezibangelwa yimitha ye-ultraviolet kunye nokukhanya okubonakalayo. Ii-UV absorbers zigxila kuphela ekukhuselekeni kwimitha ye-UV, ngelixa ii-photostabilizers zibonelela ngokhuseleko olubanzi. Azigcini nje ngokufunxa imitha ye-UV, zikwabamba ii-free radicals eziveliswa kukukhanya okubonakalayo.

Indima kaiziqinisi zokukhanyakukuthomalalisa ii-free radicals nokuzithintela ekubeni zenze umonakalo kwizinto. Oku kuzenza zibe luncedo kakhulu ekucothiseni inkqubo yokuwohloka kwezinto ezidla ngokuchatshazelwa ziindawo zangaphandle. Ngokuthintela ukwenziwa kwee-free radicals, iziqinisi zokukhanya zinceda ekwandiseni ubomi bezinto kwaye zigcine ulungelelwaniso lwesakhiwo sazo.

Ukongeza, izinto zokuqinisa ukukhanya zihlala zidityaniswaIzifunxi ze-UVukubonelela ngokhuseleko olupheleleyo kwimiphumo eyonakalisayo yelanga. Ngelixa izifunxi ze-UV zijongana ikakhulu nemiphumo yemitha ye-UV, izizinzisi ze-photos zongeza umaleko owongezelelweyo wokhuseleko ngokukhupha ii-free radicals eziveliswa kukukhanya okubonakalayo. Ngokusebenzisa zombini izongezo kunye, izinto zikhuselwe kuluhlu olubanzi lwamaza ayingozi.

Omnye umahluko phakathi kwee-UV absorbers kunyeiziqinisi zokukhanyayindlela ezisetyenziswa ngayo kunye nokuhambelana kwazo nezinto ezahlukeneyo. Izifunxi ze-UV zihlala zisetyenziswa kwiingubo ezicacileyo, iifilimu kunye neepolymers kuba zenzelwe ukuba zibonakale kwaye zingachaphazeli inkangeleko yento. Kwelinye icala, iziqinisi zokukhanya zinokuguquguquka ngakumbi kwaye zingasetyenziswa kuluhlu olubanzi lwezicelo, kubandakanya iiplastiki, irabha, iipeyinti kunye nempahla yokugquma.

Ukuqukumbela, nangona zombini ii-UV absorbers kunye nee-photostabilizers zisetyenziselwa ukukhusela izinto ekuwohlokeni okubangelwa lilanga, zahlukile kwindlela ezisebenza ngayo kunye nenqanaba lokukhusela. Ii-UV absorbers zifunxa imitha ye-UV, ngelixa ii-photostabilizers zithintela ukuwohloka okubangelwa yimitha ye-UV kunye nokukhanya okubonakalayo ngokunciphisa ii-free radicals. Ngokuqonda umahluko phakathi kwezi zongezo, abavelisi banokukhetha ukhetho olufanelekileyo kwisicelo sabo esithile kwaye baqinisekise ukhuseleko olungcono kakhulu lwezixhobo zabo.