Txhua yam khoom uas xav tau kev tiv thaiv los ntawm UV hluav taws xob yuav xav tau qee yam kev kho mob. UV absorbers tuaj yeem tiv thaiv ntau yam khoom. Txawm li cas los xij, tsis yog tag nrho cov khoom lag luam hauv pawg no muaj peev xwm sib npaug.
UV absorbers ua haujlwm zoo tshaj plaws thaum siv nrog cov ntaub ntawv tuab, vim tias cov khoom no tso siab rau qhov tob ua ib feem ntawm lawv cov txiaj ntsig. Feem ntau, cov yeeb yaj kiab nyias nyias uas yuav tsum muaj kev tiv thaiv UV hnyav tsis tau txais txiaj ntsig los ntawm UV absorbers zoo li lwm hom lub teeb stabilizers lossis additives. Vim tias qhov cuam tshuam ntawm UV absorbers sib txawv los ntawm thickness, concentration, thiab formulation, engineers yuav tsum ua tib zoo xaiv qhov zoo tshaj absorber rau ib daim ntawv thov.
Qhov zoo tshaj plaws ntawm cov absorbents no yog cov organic raws li, txawm tias qee hom yas xav tau cov khoom sib txawv. Piv txwv li, propylene feem ntau zoo tiv thaiv los ntawm aryl esters, benzophenones, benzotriazoles thiab formamidines. Kev kuaj pom UV yuav ua kom muaj kev xaiv raug ntawm absorber rau ib yam khoom tshwj xeeb. Kev soj ntsuam ib ntus ntawm cov khoom siv coatings tseem yuav muab kev ua haujlwm txuas ntxiv ntawm qhov nqus dej.
Lwm daim ntawv ntawm UV stabilizer yuav poob thaum siv polyphenylene sulfide. Tib hom uas tuaj yeem tiv thaiv cov polymer no zoo yog UV absorbers.
UV absorbers yog thawj kab ntawm kev tiv thaiv tiv thaiv UV hluav taws xob puas tsuaj. Feem ntau, cov tuam ntxhab muab cov khoom lag luam no nrog cov quenchers lossis lub teeb stabilizers rau lub sijhawm ntev tshaj plaws, cov txiaj ntsig pom zoo tshaj plaws. UV absorbers kawg txo lub peev xwm los nyiam nqus UV teeb. Thaum lawv ua, yog tias cov khoom siv tsis suav nrog lwm hom kev tiv thaiv kev puas tsuaj, nws yuav pib pom photodegradation. Txhawm rau zam qhov teeb meem no, engineers tuaj yeem ntxiv lub teeb quenchers lossis stabilizers rau cov khoom siv lossis txheej txheej, nyob ntawm seb hom polymer tiv thaiv.
Thaum UV absorbers tiv thaiv ntau yam ntaub ntawv, stabilizers thiab additives kuj tuaj yeem tiv thaiv cov xim ntawm cov yas. Nyob ntawm daim ntawv thov, stabilizers los yog additives tej zaum yuav zoo dua xaiv los yog adjuncts rau UV absorbers.
