Ib txhia phooj ywg tau ntsib tej xwm txheej zoo li no. Kuv tsis paub yog vim li cas. Cov xim ntawm lub hnab game no tau ploj mus tom qab siv tau ntev. Kuv thawj zaug xav tias nws yog ib yam khoom uas yuav tsis ploj mus, tab sis tam sim no nws tau ploj mus. Yog li cia peb saib seb yog vim li cas. Dab tsi yog vim li cas rau qhov fading ntawm EVA game hnab?
Yam cuam tshuam rau fading ntawm yasEVAcov khoom. 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, thiab 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 uas xav tau, dyes, surfactants, dispersants, carrier resins thiab anti-aging additives yuav tsum tau soj ntsuam tag nrho thaum lub sij hawm tsim cov masterbatch ua ntej xaiv.
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, redox kuj).
Piv txwv li, molybdenum chromium liab yog resistant rau dilute acid, tab sis rhiab heev rau alkali, thiab cadmium daj tsis acid-resistant. Ob lub pigments thiab phenolic resin muaj zog txo cov nyhuv ntawm qee cov xim, cuam tshuam rau cov cua sov thiab huab cua tsis kam ntawm cov xim thiab ua rau fading.
2. Antioxidation: Qee cov organic pigments maj mam ploj mus vim degradation ntawm macromolecules los yog lwm yam kev hloov tom qab oxidation.
Cov txheej txheem no suav nrog kev kub siab oxidation thaum ua thiab oxidation thaum ntsib cov oxidants muaj zog (xws li chromate hauv chromium daj). Thaum cov pas dej, azo pigments thiab chrome daj sib xyaw, cov xim liab yuav maj mam ploj mus.
3. Thermal stability ntawm tshav kub-resistant pigments yog hais txog cov degree ntawm thermal poob, discoloration, thiab fading ntawm cov xim nyob rau hauv ua kub.
Cov khoom xyaw ntawm inorganic pigments yog hlau oxides thiab ntsev, uas muaj thermal stability thiab siab kub. Pigments ua los 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 ° C. 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 thaum tshav kub kub ntawm cov xim. Lub sijhawm tiv thaiv tshav kub feem ntau yog 4-10 los nag. .
Post lub sij hawm: Lub Xya hli ntuj-12-2024