Ha liphahlo li pepesehetse ka ntle, lintho tse kang mongobo, mocheso le mahlaseli a UV li ka etsa hore li fokotsehe.Ka kakaretso, likarolo tse hlaselehang habonolo ka har'a liphahlo ke li-resin tse etsang filimi le phofo.Mahlaseli a mahlaseli a mahlaseli a kotsi le metsi li etsa hore lisebelisoa tsena li senyehe ke lik'hemik'hale, 'me liphetoho tsena tsa ho senyeha li atisa ho eketseha ha mocheso o phahama.Ho senyeha ha liphahlo tse bakoang ke mahlaseli a ultraviolet hangata ho bitsoa photooxidation.Karabelo e hlahisoa ke mahlaseli a ultraviolet.Oksijene e sepakapakeng e ameha ho senyeha ha lik'hemik'hale.Lintho tse joalo tse monyang photon li bitsoa chromophores 'me e ka ba lihlopha tsa ho qetela tsa likaroloana tsa pigment, mokokotlo kapa li-polymer binders, litšila, li-solvents tse setseng, kapa li-additives.Hang ha li-photon li kenngoa, chromophore e ntša matla.Ts'ebetso ena hangata e finyelloa ka ho roba tlamo ea covalent ho theha li-radicals tse peli tsa mahala.Li-radicals tsena hangata li sebetsa haholo ho oksijene 'me li kopana le oksijene ho etsa li-radicals tsa mahala tse bohareng ba oksijene.Ha li se li entsoe, li-radicals tsena li ka senya maqhama a lik'hemik'hale tse ling ka mehato e fapaneng ea lik'hemik'hale, e leng se etsang hore ho be le ketane e lebisang ho senyeha ha polymer.Ho itšetlehile ka polymer, ho eketseha kapa ho fokotseha ha sekhahla sa li-cross-linking, kapa palo e kholoanyane kapa e nyenyane ea limolek'hule, e ka bonoa.Ea pele e ka 'na ea etsa hore ho be le ho phunyeha ha seaparo;E qetellang e ka lebisa ho viscidity ea ho roala, ho hanyetsa solvent kapa khanyetso ea ho hlaba.'Me gloss ea pente e tla lahleha,' me 'mala o tla fetoha.
Ho phaella ho photooxidation, filimi e etsang resin ka ho roala e ka senyeha ka hydrolysis, haholo-holo ha mocheso oa ho roala o ntse o eketseha tlas'a letsatsi le phahameng.Tlas'a maemo ana, limolek'hule tsa metsi tse kentsoeng ka har'a koae li ka hlasela li-covalent bond tse ka har'a resin le ho khaola liketane tsa polymer, e leng se bakang boima bo tlase ba limolek'hule.Li-polyester le alkyd resins li kotsing ea ho ba le phello ena ho feta polyurethanes le epoxies.
| PRODUCT | CAS NUMBER | LEKANE | TLHALOSO |
| UV1 | 57834-33-0 | UV1 ke sehlahisoa se sebetsang hantle sa anti-uv, se sebelisoang haholo ho polyurethane, sekhomaretsi, foam le lisebelisoa tse ling. | |
| UV3303 | 586400-06-8 | UV3 e khothaletsoa ho PU (TPU, RIM) le lipolasetiki tsa boenjiniere (PET, PC, PC, ABS, PA, PBT) | |
| UV3331 | 147783-69-5 | SANDUVOR PR 31 | UV 3331 ke sesebelisoa se thibelang mabone a amine (HALS) e nang le ts'ebetso ea ho monya UV.Ho joalo e tšoauoa ka bokhabane ba eona bo botle le bokhoni ba eona ba ho ts'oaroa ka har'a binder kapa polima matrix nakong ea khahlano le UV. UV3331 e ka sebelisoa ka polyolefine, polasetiki ea polystyrene, PVC, PBT le lisebelisoa tse ling. |
| UV3325 | 7443-25-6
| SANDUVOR PR 25 | UV 3325 ke sehanyi sa UV-B bakeng sa PVC, li-polyester, PC, polyamides, polasetiki ea styrene, li-copolymers tsa EVA le cellulosics.
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| LS123 | 129757-67-1 | TINUVIN 123 | LS123 e sebelisoa ho koahela likoloi, liphahlo tsa indasteri, likhabiso tse khabisitsoeng, liphahlo tsa lehong, haholo-holo bakeng sa lintho tse tiileng tse phahameng, lipente tsa likoloi le tsa indasteri. |
| LS292 | 41556-26-7 82919-37-7 | TINUVIN 292 | LS292 e ka thibela ka katleho ho phunyeha, ho lahleheloa ke leseli le mafu a mang a lacquer, e ka ntlafatsa haholo bophelo ba tšebeletso ea ho roala, 'me sehlahisoa ka mocheso oa kamore se ke ke sa khanya. |
| LS765 | 41556-26-7 82919-37-7 | TINUVIN 765 | LS765 e sebelisoa ho roala, haholo lipente tsa likoloi ho thibela botsofali. LS765 ke stabilizer e sebetsang hantle haholo ea metsi bakeng sa mefuta e mengata e fapaneng ea li-polymers le lits'ebetso, ho kenyelletsa polyurethanes, sealants, adhesives, elastomers, unsaturated polyester, acrylics, vinyl polymers (PVB, PVC), styrene homopolymers le copolymers, polyene e otlolohileng, e tsepamisitsoeng ka mebala ea metsi. li-substrates tse ling tsa organic. |