Kokubili izibambisi ze-UV neziqinisi ukukhanya kwe-amine ezivinjiwe (HALS) zisetshenziselwa ukuvikela ama-polymer namapulasitiki ekonakalisweni okubangelwa ukuchayeka kokukhanya. Nakuba zombili zinemisebenzi efanayo, zisebenza ngezindlela ezahlukene ukuze zinikeze lesi sivikelo.
Ama-absorber ama-UV asebenza ngokumunca imisebe ye-UV futhi ayiguqule ibe ukushisa, okube sekukhishwa endaweni ezungezile. Lokhu kusiza ukuvimbela imisebe ye-UV ukuthi ingangeni esakhiweni se-polymer, futhi ngenxa yalokho ivikela i-polymer ekonakalisweni okubangelwa ukuchayeka emisebeni ye-UV.
I-HALS, ngakolunye uhlangothi, isebenza ngokukhipha ama-radicals mahhala akhiqizwa ukukhanya okukhanyayo, okungabangela ukuwohloka kwesakhiwo se-polymer. Ngokuqeda la ma-radicals mahhala, i-HALS isiza ukuvimbela i-polymer ukuthi ingabhidliki, futhi ngenxa yalokho yelule ukuphila kwayo okusebenzisekayo.
Kafushane, kuyilapho ama-Absorbers e-UV evikela ngokuyinhloko ama-polymer emisebeni ye-UV, i-HALS ivikela ama-polymer ekuqhekekeni okubangelwa ama-radicals mahhala akhiqizwa ukukhanya. Kokubili ama-Absorbers we-UV kanye ne-HALS angamathuluzi abalulekile ekulweni nokucekelwa phansi kwamapulasitiki nama-polymers, futhi kufanele asetshenziswe ndawonye ukuze anikeze isivikelo esingcono kakhulu salezi zinto.
