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PVC qhov rooj kab hlau rhuav ob xyoos tsis yellowing txoj cai

Cov ntaub thaiv qhov rooj yog siv los ntawm txhua tsev neeg, tshwj xeeb tshaj yog nyob rau lub caij ntuj sov kub, yoov tshaj cum ntau dua, lub teeb kuj muaj zog heev, yog li nyob rau lub caij ntuj sov lub qhov rooj cov ntaub thaiv kev muag khoom ncaj nraim, cov khoom zoo yog qhov tseem ceeb lav.Muaj ntau ntau hom kab hlau rhuav qhov rooj.Nyob rau lub caij ntuj sov, peb feem ntau pom PVC mos qhov rooj kab hlau rhuav.PVC kab hlau rhuav Cov duab 202203151152073puas tau, pob tshab qhov rooj ntaub muaj ib qho teeb meem tshwm sim, uas yog, nws yog ib qho yooj yim rau yellowing, aging sai, thiab cuam tshuam rau cov tsos ntawm cov khoom, tshwm sim zoo li no tshwm sim tuaj yeem ua rau cov neeg siv mob taub hau, ntau cia cov ntaub thaiv qhov rooj muag muag tsis muaj kev pab.Ntau lub tuam txhab tau nrhiav kev pabcuam los hloov qhov teeb meem no, kuj tau sim ntau, qee qhov tom qab siv txawm tias txhim kho, tab sis cov nyhuv tsis zoo tagnrho.

Yog vim li cas rau qhov no yog tias PVC ntaub yog daj, Feem ntau vim hais tias lub qhov rooj kab hlau rhuav yog feem ntau nyob rau hauv sab nraum zoov, lub hnub yuav ncaj qha illuminated, feem ntau peb lub hlis los yog li ntawd yuav tshwm daj tshwm sim, ib tug ntev daj loj heev.Qhov tshwm sim no feem ntau yog los ntawm ultraviolet hluav taws xob nyob rau hauv lub hnub, uas rhuav tshem cov qauv molecular ntawm PVC ntaub, yog li ntawd cov polar chlorine muaj nyob rau hauv PVC qauv nyob rau hauv lub sij hawm ntev lub teeb thiab oxidation yuav accelerate lub decomposition ntawm yellowing zoo li PS thiab PU.Qhov no tuaj yeem ua rau qeeb los ntawm kev ntxiv me me ntawm cov tshuaj tiv thaiv antioxidants thiab lub teeb stabilizers thaum lub sijhawm sib xyaw.Kev sib ntxiv ntawm Antioxidants 1010 thiab UV-531 feem ntau yog kev sib txuas los tiv thaiv kev laus rau cov khoom siv PVC.Thov xa mus rau.

Txawm li cas los xij, pob tshab PVC ntaub thaiv cov khoom feem ntau tiv taus hluav taws xob ultraviolet ntau dua li cov kev xav tau antioxidant, nws raug pom zoo tias ntau yam ntawm lub teeb stabilizers siv hauv kev sib koom ua ke zoo dua.Feem ntau ntawm UV absorbers ntawm kev ua lag luam yog monomer, thiab tsis tuaj yeem ua si qhov tseem ceeb los tiv thaiv daj.Yuav tsum tau xaiv kom nqus tau ntau lub ncov UV absorbent, tuaj yeem pom tseeb dua kom ua tiav cov nyhuv tsis-daj ntev.Tam sim no, kev ua lag luam feem ntau siv hom kev sib tw zoo ntawm UV absorber X-2, tsuas yog ua tau raws li cov neeg siv khoom xav tau.Cov kev xaiv ntawm xws li ib tug anti-oxygen, anti-ultraviolet, lub teeb stability ntawm lub match-hom UV absorbent, yuav yeej escort yas tsheb thauj khoom.


Post lub sij hawm: Mar-15-2022