Yuav ua li cas antioxidant tus neeg sawv cev lmrove qhov ruaj khov ntawm plastics thiab polymers?

Nyob rau hauv daim teb ntawm cov khoom siv durability, kom ntseeg tau cov kev daws teeb meem tseem ceeb heev. Cov tebchaw no ua lub luag haujlwm ntawm kev tiv thaiv cov khoom siv oxegratually, uas resutscermant cov khoom siv, xws li muaj zog, kev tawm tsam, thiab tag nrho kev ua tau zoo. Qhia nws, cov txheej txheem oxidation tau qeeb, yog li txhim kho lub hnub ntev ntawm cov. Lub Koom Haum Thawj Los ntawm uas ib tug neeg ua hauj lwm antioxidant tus neeg sawv cev yog los ntawm scavenging dawb radicals. Dawb radicals yog cov lus qhia hloov kho molecules uas pib txheej txheem oxidation thiab muaj lub luag haujlwm los pib cov saw hlau tau tshwm sim. Los ntawm nruab nrab cov radicals dawb, nws cuam tshuam cov saw cov tshuaj tiv thaiv thiab tiv thaiv kev puas tsuaj ntxiv rau cov qauv polymer. Qhov no tso cai rau plastics thiab polymers kom tswj lawv cov khoom qub nyob rau lub sijhawm ntev dua. Muaj ntau hom kev siv tshuaj tiv thaiv kab mob antioxidant siv nyob rau hauv lub stoblization ntawm cov txheej txheem oxidation los ntawm theem pib thaum ntxov, thaum lwm tus ua tau zoo ntawm cov theem ntawm kev ua tsis raws cai. Cov kab mob no tuaj yeem raug categorized rau ob pawg neeg tseem ceeb: thawj cov tshuaj tiv thaiv kab mob antioxidants thiab theem nrab antioxidants. Thawj cov tshuaj tua kab mob antioxidants feem ntau dawb radical scavengers, thaum theem nrab antioxidants ua haujlwm los ntawm cov hom kab mob uas tuaj yeem pab txhawb kev ua haujlwm sab saum toj.
Cov txiaj ntsig ntawm cov antioxidant tus neeg sawv cev tom ntej tshaj li kev tiv thaiv oxidation. Lawv kuj pab txhim kho lub thermal stability ntawm plastics thiab polymers. Hlawv kev ua tiav cov plastics feem ntau raug rau qhov kub thiab txias, uas tuaj yeem nrawm oxidation. Y Kev Sib Koom Tes Tiv Thaiv Antioxidant Dej Txhim Kho Cov Khoom Siv, ua rau nws muaj kev cuam tshuam zoo, ua rau nws muaj kev txiav txim siab siab, estioxidants, antioxidants. Kev nthuav tawm sab nraum zoov, ya raws, thiab oxygen tuaj yeem ua rau cov khoom siv tau tswj hwm nws cov kev ua haujlwm txawm tias raug rau cov xwm txheej hnyav ib puag ncig
Ntxiv rau lawv lub luag haujlwm hauv kev txhim kho cov khoom ruaj, Tooj liab oxidation tiv thaiv tus nqi kuj ua rau cov kev ruaj ntseg ntawm cov yas thiab polymers. Los ntawm kev ncua lub neej muaj txiaj ntsig ntawm cov ntaub ntawv no, qhov xav tau kev hloov pauv tau txo, uas nyob rau hauv lem txo cov khib nyiab thiab txuag cov peev txheej. Qhov no ua rau cov antioxidant cov neeg sawv cev ntawm cov khoom lag luam ntshuam hauv kev txhim kho cov khoom siv yas ntau.
Hauv kev xaus, antioxidant sawv daws ua si lub luag haujlwm tseem ceeb hauv kev txhim kho kev ruaj ntseg ntawm plastics thiab polymers. Los ntawm lawv lub peev xwm los tiv thaiv oxidative kev ua tsis ncaj, cov neeg sawv cev no khaws cov cuab yeej siv tshuab, thiab huab cua cov khoom siv no. Raws li qhov kev thov rau cov khoom lag luam ruaj khov thiab muaj cov khoom siv tau yooj yim ntxiv kom loj hlob, qhov tseem ceeb ntawm cov txiaj ntsig tshuaj antiox tsuas yog nce rau cov yas thiab polymer {2}.