UV tsis kam yog hais txog kev tsim cov khoom siv lossis cov khoom siv los tiv thaiv kev puas tsuaj lossis fading los ntawm kev raug tshav ntuj ultraviolet (UV) hluav taws xob.Cov ntaub ntawv tiv thaiv UV feem ntau yog siv rau hauv cov khoom siv sab nraum zoov xws li ntaub, plastics thiab coatings los pab kom ntev lub neej thiab tswj qhov zoo ntawm cov khoom.
Yog lawm, qee qhov tarps tshwj xeeb yog tsim los ua UV resistant.Cov tarps no yog ua los ntawm cov khoom siv kho mob uas tuaj yeem tiv taus lub hnub ntev ntev yam tsis muaj kev puas tsuaj lossis tsis muaj xim.Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias tsis yog txhua qhov tarps yog UV resistant thiab qee qhov yuav degrade dhau sijhawm yog tias raug tshav ntuj.Thaum xaiv ib lub tarp, nws yog ib lub tswv yim zoo los xyuas cov ntawv lo lossis cov khoom tshwj xeeb kom paub tseeb tias nws yog UV resistant yog tias qhov no tseem ceeb rau koj txoj kev siv.
Qib ntawm UV tsis kam ntawm tarps nyob ntawm lawv cov ntaub ntawv tshwj xeeb thiab UV stabilizers siv hauv lawv cov khoom siv.Feem ntau, UV tiv thaiv tarps yog ntsuas los ntawm feem pua lawv thaiv lossis nqus UV hluav taws xob.Ib qho kev ntsuam xyuas feem ntau yog Ultraviolet Protection Factor (UPF), uas ntsuas cov ntaub ntawv raws li lawv lub peev xwm los thaiv UV hluav taws xob.Qhov siab dua qhov ntsuas UPF, qhov zoo dua tiv thaiv UV.Piv txwv li, UPF 50-rated tarp blocks txog 98 feem pua ntawm UV hluav taws xob.Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qhov tseeb ntawm UV tiv thaiv kuj tseem nyob ntawm cov yam ntxwv xws li lub hnub raug, huab cua thiab tag nrho cov ntaub pua plag zoo.
Post lub sij hawm: Jun-15-2023