Diatom av nkos yog ib hom khoom siv kho kom zoo nkauj sab hauv phab ntsa uas muaj diatomite ua cov khoom siv tseem ceeb. Nws muaj cov haujlwm ntawm kev tshem tawm formaldehyde, lim cua, tswj cov av noo, tso tawm cov pa oxygen tsis zoo, tiv thaiv hluav taws thiab hluav taws kub, ntxuav phab ntsa tus kheej, tua kab mob thiab tshem tawm cov ntxhiab tsw. Vim tias diatom av nkos noj qab haus huv thiab zoo rau ib puag ncig, nws tsis tsuas yog muaj kev kho kom zoo nkauj zoo xwb, tab sis kuj muaj kev ua haujlwm. Nws yog tiam tshiab ntawm cov khoom siv kho kom zoo nkauj sab hauv es tsis txhob siv ntawv phab ntsa thiab xim latex.
Diatom av nkos tshwj xeeb hydroxypropyl methyl celluloseHPMC, yog cov khoom siv polymer ntuj cellulose ua cov khoom siv raw, los ntawm ntau yam kev ua tshuaj lom neeg thiab ua los ntawm cov cellulose ether uas tsis yog ionic. Lawv yog cov hmoov dawb tsis muaj ntxhiab, tsis muaj saj, tsis muaj tshuaj lom uas nthuav dav mus rau hauv cov kua colloid meej lossis me ntsis pos huab hauv dej txias. Nrog rau kev tuab, kev nplaum, kev tawg, emulsification, kev tsim zaj duab xis, kev ncua, kev nqus, gel, kev ua haujlwm ntawm qhov chaw, kev khaws cia noo noo thiab kev tiv thaiv colloidal, thiab lwm yam.
Lub luag haujlwm ntawm hydroxypropyl methyl cellulose HPMC hauv diatom av nkos:
Txhim kho kev khaws cia dej, txhim kho diatom av qhuav sai dhau thiab tsis txaus hydration los ntawm hardening, cracking thiab lwm yam phenomena.
Ua kom cov av diatom plasticity zoo dua, txhim kho kev ua haujlwm ntawm kev tsim kho, txhim kho kev ua haujlwm zoo.
Yog li ntawd nws thiaj li lo tau zoo dua rau lub substrate thiab cov nplaum.
Vim yog qhov ua kom tuab, nws tuaj yeem tiv thaiv qhov tshwm sim ntawm diatom av nkos thiab cov nplaum los ntawm kev txav mus los thaum lub sijhawm tsim kho.
Diatom av nkos nws tus kheej tsis muaj kev ua qias tuaj, ntshiab ntuj, thiab muaj ntau yam kev ua haujlwm, yog xim latex thiab ntawv phab ntsa thiab lwm yam txheej txheem ib txwm tsis tuaj yeem phim. Nrog diatom av nkos kho kom zoo nkauj tsis yog txav mus los, vim tias thaum lub sijhawm tsim kho ntawm diatom av nkos hauv cov txheej txheem ntawm tsis muaj saj, yog ntshiab ntuj, yooj yim kho. Yog li diatom av nkos ntawm hydroxypropyl methyl cellulose HPMC xaiv cov kev cai yog qhov siab heev.
Lub sijhawm tshaj tawm: Plaub Hlis-25-2024