Plastiki le lisebelisoa tse ling tsa polima, tse pepeselitsoeng mahlaseli a letsatsi kapa{0}}mahlaseli a matla a phahameng, li tla senyeha foto-ka lebaka la ho monya matla a ultraviolet, e leng ho fellang ka ho fifala le ho senyeha ha tšebetso ea lihlahisoa. Ntho efe kapa efe e ka thibelang kapa ea fokotsa lebelo la photooxidation e bitsoa light stabilizer kapa anti-antiultraviolet agent.
Mesebetsi e ka sehloohong ea li-stabilizers tsa leseli ke: ho sireletsa leseli, ho monya le ho fetisa matla a khanya, ho tima kapa ho hapa li-radicals tsa mahala. Li-stabilizers tsa leseli ka kakaretso li arotsoe ka mekhahlelo e mene: lisebelisoa tse sireletsang leseli, li-absorber tsa ultraviolet, li-quenchers le li-stabilizer tse sitisang khanya ea amine ho latela mokhoa oa tsona oa ts'ebetso.
Thindered amine light stabilizer ke mofuta oa stabilizer ea leseli e sebelisoang ka bongata lapeng le kantle ho naha. E ka senya hydroperoxides, ea tima oksijene e matla, ea tšoasa li-radicals tsa mahala, 'me lihlopha tsa eona tse sebetsang li na le mesebetsi e ka nchafatsoang hape.
Palo ea leseli la stabilizer sehlahisoa ka kakaretso ke 0.01% ~ 0.5%, 'me phello e ntle. Leseli la stabilizer hangata le na le maemo a latelang:
1. E ka monya leseli la ultraviolet ka har'a leqhubu la maqhubu a 290 ~ 410 nanometers, kapa e ka khona ho tima ka katleho matla a limolek'hule tse thabileng, kapa e na le bokhoni bo lekaneng ba ho tšoara li-radicals tsa mahala. Matla a eona a ho tsitsisa ha bobebe ke nako e telele-.
2. Ho lumellana hantle le resin, botsitso bo botle ba mocheso, ha ho na karabelo le li-additives tse ling, khanyetso e ntle ea ho ntša.
3. Ha e na chefo{{1}kapa tlase{2}}lihlahisoa tse sa silafatsang{3}, theko e tlase.
