Txawm hais tias txwv los ntawm hom polymers lawv ua haujlwm nrog, UV stabilizers muaj kev ua haujlwm zoo dua hauv kev tiv thaiv cov ntaub ntawv los ntawm kev puas tsuaj ultraviolet. Stabilizers kuj muaj txiaj ntsig los tiv thaiv kev puas tsuaj ntawm thermal, ib yam dab tsi absorbers thiab quenchers tsis ua. Thaum ib qhov project kuj xav tau kev tiv thaiv los ntawm tshav kub, HALS muab ob lub tshav kub thiab lub teeb puas. Interestingly, kev kwv yees muab HALS raws li hom UV additive feem ntau yuav yog cov neeg nyiam tshaj plaws thiabloj hlob tshaj plaws los ntawm 2016 txog 2021. Ntau daim ntawv thov rau HALS, ntxiv rau kev lag luam loj hlob rau cov yas, ua rau qhov kev twv ua ntej no muaj feem ntau.
Thaum cov khoom nyias xav tau kev tiv thaiv ultraviolet, HALS ua haujlwm zoo dua li UV absorbers. Cov khoom no kuj muaj ntau yam versatility. Nws myriad ntawm qhov hnyav molecular tso cai rau nws muaj kev thov hauv cov txheej thiab cov yas. Polypropylene thiab ntau lwm cov polymers tuaj yeem siv HALS thaum lawv tsim khoom, suav nrog cov theem ntawm cov ntawv lossis profile extrusion thiab tshuab lossis txhaj tshuaj molding.
Vim tias thickness tsis cuam tshuam rau kev ua tau zoo ntawm HALS, qhov feem pua ntawm cov khoom siv thiab qhov tob ntawm cov khoom tsis tas yuav muaj kev ntsuas loj. Thaum UV absorbers ua haujlwm zoo tshaj plaws thaum lawv tuaj yeem muaj txheej txheej tuab lossis siab dua los txhim kho kev tiv thaiv, HALS ua haujlwm tau zoo txawm tias qis dua. Rau cov ntawv thov ntawm cov txheej nyias nyias los yog thaum lub sij hawm ntev ntawm kev tiv thaiv UV yog qhov tseem ceeb, stabilizers xws li HALS yog qhov kev xaiv zoo dua thaum ua haujlwm nrog cov khoom siv sib xws. Rau cov lus nug txog kev sib raug zoo ntawm polymers nrog HALS lossis lwm yam UV additives,hu rau peb hauv online.
