Uma kuvikelwa izinto zokwakha kanye nemikhiqizo emiphumeleni eyingozi yokukhanya kwelanga, kunezithasiselo ezimbili ezivame ukusetshenziswa: izifutho ze-UV kanyeiziqinisi zokukhanyaNakuba zizwakala zifana, lezi zinto ezimbili empeleni zihlukile kakhulu endleleni ezisebenza ngayo kanye nezinga lokuvikela ezikunikezayo.

Njengoba igama lisho, izifutho ze-UV zimunca imisebe ye-ultraviolet (UV) evela elangeni. Imisebe ye-UV yaziwa ngokubangela ukuwohloka kwezinto eziningi, ikakhulukazi lezo ezivezwa elangeni isikhathi eside. Izifutho ze-UV zisebenza ngokumunca imisebe ye-UV bese ziyiguqula ibe ukushisa, okube sekunyamalala ngaphandle kokulimala.

Ngakolunye uhlangothi, ama-photostabilizer asebenza ngokuvimbela ukuwohloka kwezinto okubangelwa imisebe ye-ultraviolet nokukhanya okubonakalayo. Ama-UV absorber agxila kuphela ekuvikeleni emisebeni ye-UV, kuyilapho ama-photostabilizer enikeza isivikelo esibanzi. Awagcini nje ngokumunca imisebe ye-UV, kodwa futhi abamba ama-free radical akhiqizwa ukuchayeka ekukhanyeni okubonakalayo.

Indima kaiziqinisi zokukhanyaiwukumisa ama-free radicals futhi uwavimbele ekudaleni umonakalo ezintweni. Lokhu kuwenza asebenze kahle kakhulu ekunciphiseni inqubo yokuwohloka kwezinto ezivame ukudalulwa ezindaweni zangaphandle. Ngokuvimbela ukwakheka kwama-free radicals, iziqinisi zokukhanya zisiza ekwandiseni impilo yezinto futhi zigcine ubuqotho besakhiwo sazo.

Ngaphezu kwalokho, iziqinisi zokukhanya zivame ukuhlanganiswaIzifutho ze-UVukuhlinzeka ngesivikelo esiphelele emiphumeleni elimazayo yelanga. Nakuba izifutho ze-UV zibhekana ngokuyinhloko nemiphumela yemisebe ye-UV, izizinzisi ze-photostabilizer zengeza ungqimba olwengeziwe lwesivikelo ngokususa ama-free radicals akhiqizwa ukukhanya okubonakalayo. Ngokusebenzisa zombili izithasiselo ndawonye, ​​​​izinto zivikelwe ebangeni elibanzi lamaza okukhanya ayingozi.

Omunye umehluko phakathi kwezifutho ze-UV kanyeiziqinisi zokukhanyaukusetshenziswa kwazo kanye nokuhambisana kwazo nezinto ezahlukene. Izifutho ze-UV zivame ukusetshenziswa ezimbozweni ezicacile, amafilimu kanye nama-polymer ngoba zenzelwe ukuba zibonakale futhi zingathinti ukubukeka kwezinto. Ngakolunye uhlangothi, iziqinisi zokukhanya ziguquguquka kakhulu futhi zingasetshenziswa ezinhlobonhlobo zezicelo, okuhlanganisa ipulasitiki, irabha, upende, kanye nezindwangu.

Ekuphetheni, nakuba kokubili ama-UV absorber kanye nama-photostabilizer asetshenziselwa ukuvikela izinto ekuwohlokeni okubangelwa ukukhanya kwelanga, ahlukile ngendlela asebenza ngayo kanye nezinga lokuvikelwa. Ama-UV absorber amunca imisebe ye-UV, kuyilapho ama-photostabilizer evimbela ukuwohloka okubangelwa imisebe ye-UV nokukhanya okubonakalayo ngokunciphisa ama-free radicals. Ngokuqonda umehluko phakathi kwalezi zithasiselo, abakhiqizi bangakhetha inketho efaneleke kakhulu yokusetshenziswa kwabo okukhethekile futhi baqinisekise ukuvikelwa okungcono kakhulu kwezinto zabo.