Silica hauv txheej thiab pleev xim
Jul 26, 2023
Silica hauv txheej thiab pleev xim
Silicon dioxide los yog silica yog ib qho tshuaj ntxiv nyob rau hauv cov xim thiab coatings. Nws paub txog nws cov khoom thixotropic, txhais tau hais tias nws tuaj yeem hloov viscosity vim kev ntxhov siab ntawm txhua yam. Thaum ntxiv me me rau cov xim, nws tuaj yeem tshem tawm qhov kev daws teeb meem ntawm cov kua dej, ua rau cov txheej txheem du thiab zoo ib yam.
Hauv cov txheej txheem polyester tsis zoo, ntxiv 0 5-2 feem pua ntawm silica tuaj yeem tiv thaiv cov tee dej thiab wrinkles txawm tias siv ntsug ntawm tus nqi ntawm 500g / m2. Ntxiv silica rau pigments thiab dyes tuaj yeem txhim kho lawv cov adsorption thiab txhim kho lawv cov dispersion. Nws kuj tiv thaiv cov xim xim thiab muab kev ruaj ntseg zoo dua rau txheej txheej.
Raws li ib tug muab tub lim nyob rau hauv emulsion coatings, silica tsub kom kub stability thiab txhim kho cov khoom tsis-tawm ntawm cov xim. Muaj cov tshwj xeeb silica-raws li matting tus neeg sawv cev tsim los ua kom tau raws li qhov yuav tsum tau ua ntawm cov txheej txheem thiab cov inks. Thaum siv hauv nitrocellulose thiab lwm yam lacquers, cov matting cov neeg ua haujlwm txhim kho cov khoom tsis yog kev daws teeb meem ntawm cov xim thiab txhim kho nws cov pob tshab, kev puas tsuaj, thiab cov khoom raug ncua.
Hauv kev luam ntawv inks, qhov sib ntxiv ntawm 0.5 feem pua silica tuaj yeem txhim kho cov ntawv luam tawm zoo los ntawm kev tshem tawm cov nyhuv ntawm tus number case undispersed. Nws kuj tseem txhim khu kev ntxuav ntawm cov ntaub ntawv luam tawm thiab ua kom lawv cov xim ci ntsa iab.
Zuag qhia tag nrho, silica yog ib qho tseem ceeb muaj nyob rau hauv cov xim thiab coatings kev lag luam. Nws muaj ntau yam txiaj ntsig, xws li kev txhim kho kev ruaj ntseg, tawg, thiab luam ntawv zoo ntawm cov txheej. Cov khoom siv ntau yam no muaj txiaj ntsig zoo rau kev ua haujlwm ntawm cov xim thiab cov txheej txheem, ua rau lawv ruaj khov, pob tshab, thiab kav ntev.
