Dab tsi yog yam uas cuam tshuam rau fading ntawmEVA cov khoom? Kuv ntseeg tias ntau tus neeg txhawj xeeb txog cov teeb meem zoo li no nrog EVA cov khoom. Qhov tseeb, EVA tshwm hauv lub neej hauv tsev ua cov khoom tseem ceeb tam sim no. Nws feem ntau ua raws li cov khoom siv suab rwb thaiv tsev, cov khoom siv hauv pem teb, cov khoom siv cushioning, thiab lwm yam hauv cov haujlwm kho kom zoo nkauj. Cov khoom siv EVA muaj ntau yam zoo li cov ntaub pua plag, xws li av qeeg zoo, tsis muaj dej, tiv thaiv hluav taws xob, thiab lwm yam. Yog li niaj hnub no Dongyang Yirong Luggage yuav piav qhia txog plaub qhov laj thawj tseem ceeb rau fading ntawm cov khoom yas EVA:
Cov yam tseem ceeb uas cuam tshuam rau fading ntawm cov khoom yas EVA. Lub fading ntawm cov khoom xim yas muaj feem xyuam rau lub teeb tsis kam, oxygen tsis kam, kub tsis kam, acid thiab alkali tsis kam ntawm pigments thiab dyes, nrog rau cov yam ntxwv ntawm cov resin siv. Raws li cov txheej txheem kev ua haujlwm thiab kev siv cov khoom siv yas, cov khoom siv tau hais los saum toj no ntawm cov xim yuav tsum tau muaj, dyes, surfactants, dispersants, carrier resins thiab anti-aging additives yuav tsum tau soj ntsuam tag nrho thaum tsim cov masterbatches ua ntej lawv tuaj yeem xaiv.
Plaub qhov laj thawj tseem ceeb rau fading ntawm EVA cov khoom:
1. Acid thiab alkali tsis kam Lub fading ntawm cov khoom yas xim muaj feem xyuam rau cov tshuaj tiv thaiv ntawm cov xim (acid thiab alkali tsis kam, oxidation thiab txo tsis kam)
Piv txwv li, molybdenum chrome liab yog resistant rau dilute acid, tab sis rhiab rau alkali, thiab cadmium daj tsis acid-resistant. Ob lub pigments thiab phenolic resin muaj zog txo cov nyhuv ntawm qee cov xim, uas cuam tshuam rau cov cua sov thiab huab cua tsis kam ntawm cov xim thiab ua rau fading.
2. Antioxidant zog Qee cov organic pigments maj mam ploj tom qab oxidation vim macromolecular degradation lossis lwm yam kev hloov pauv.
Cov txheej txheem no yog kub-kub oxidation thaum ua thiab oxidation thaum ntsib cov oxidants muaj zog (xws li chromate hauv chrome daj). Tom qab cov xim pas dej, azo pigment thiab chrome daj yog sib xyaw, xim liab yuav maj mam ploj mus.
3. Thermal stability ntawm tshav kub-resistant pigments yog hais txog lub degree ntawm thermal poob, discoloration thiab fading ntawm cov xim ntawm cov ua kub.
Inorganic pigments yog tsim los ntawm hlau oxides thiab ntsev, nrog zoo thermal stability thiab siab kub tsis kam. Txawm li cas los xij, cov xim ntawm cov organic tebchaw yuav raug hloov pauv hauv cov qauv molecular thiab ib qho me me ntawm decomposition ntawm qhov kub thiab txias. Tshwj xeeb tshaj yog rau PP, PA, thiab PET cov khoom, qhov kub ua haujlwm siab tshaj 280 ℃. Thaum xaiv cov xim, ntawm ib sab, peb yuav tsum tau them sai sai rau lub tshav kub tsis kam ntawm cov xim, thiab ntawm qhov tod tes, peb yuav tsum xav txog lub sij hawm tshav kub ntawm cov xim, uas feem ntau yuav tsum yog 4-10rain.
4. Lub teeb tsis kam Lub teeb tsis kam ntawm cov xim ncaj qha cuam tshuam rau fading ntawm cov khoom
Rau cov khoom siv sab nraum zoov raug lub teeb muaj zog, lub teeb tsis kam (sun resistance) qib yuav tsum tau siv cov xim siv yog qhov tseem ceeb. Yog tias lub teeb ua haujlwm tsis zoo, cov khoom yuav ploj sai sai thaum siv. Lub teeb tiv thaiv qib xaiv rau cov khoom tiv thaiv huab cua yuav tsum tsis txhob qis dua qib 6, nyiam dua qib 7 lossis 8, thiab qib 4 lossis 5 rau cov khoom siv sab hauv. Lub teeb tsis kam ntawm cov cab kuj tseem muaj kev cuam tshuam zoo rau kev hloov xim. Tom qab cov resin yog irradiated los ntawm ultraviolet rays, nws cov qauv molecular hloov thiab ploj mus. Ntxiv lub teeb stabilizers xws li ultraviolet absorbers rau masterbatch tuaj yeem txhim kho lub teeb tsis kam ntawm cov khoom siv xim thiab cov xim yas.
Plaub qhov laj thawj tseem ceeb rau fading ntawm cov khoom siv yas EVA tau qhia ntawm no. Ua tib zoo mloog cov ntsiab lus saum toj no tuaj yeem zam qhov tsis zoo xws li fading ntawm EVA cov khoom; vim qhov zoo ntawm EVA cov ntaub ntawv, nws yog tam sim no ntau thiab ntau siv dav hauv lub neej txhua hnub.
Post lub sij hawm: Sep-26-2024