Lub luag haujlwm ntawm hydroxypropyl methylcellulose hauv diatom av nkos

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, kho qhov av noo, tso tawm cov pa oxygen tsis zoo, tiv thaiv hluav taws, ntxuav phab ntsa nws tus kheej, tua kab mob thiab tshem tawm ntxhiab, thiab lwm yam. Vim tias diatom av nkos yog qhov noj qab haus huv thiab tus phooj ywg ib puag ncig, nws tsis yog tsuas yog kho kom zoo nkauj xwb, tab sis kuj ua haujlwm tau zoo. Nws yog tiam tshiab ntawm cov khoom siv kho kom zoo nkauj sab hauv uas hloov daim ntawv phab ntsa thiab xim latex.

Hydroxypropyl methylcellulose rau diatom av nkos yog cov cellulose ether uas tsis yog ionic ua los ntawm cov khoom siv polymer ntuj cellulose los ntawm ntau cov txheej txheem tshuaj lom neeg. Lawv yog cov hmoov dawb tsis muaj ntxhiab, tsis muaj saj thiab tsis muaj tshuaj lom uas swells mus rau hauv cov kua colloidal meej lossis me ntsis cloudy hauv dej txias. Nws muaj thickening, binding, dispersing, emulsifying, zaj duab xis-tsim, suspending, adsorbing, gelling, surfactant, noo noo-tuav thiab tiv thaiv colloid.

Lub luag haujlwm ntawm hydroxypropyl methylcellulose hauv diatom av nkos:

1. Txhim kho kev khaws dej, txhim kho cov av nkos diatom kom qhuav dhau thiab tsis txaus dej los ntawm kev tawv tsis zoo, tawg thiab lwm yam xwm txheej.

2. Ua kom cov av diatom plasticity zoo dua, txhim kho kev ua haujlwm ntawm kev tsim kho, thiab txhim kho kev ua haujlwm zoo dua.

3. Ua kom nws zoo dua qhov sib txuas ntawm lub substrate thiab cov adherend.

4. Vim nws cov nyhuv thickening, nws tuaj yeem tiv thaiv qhov tshwm sim ntawm diatom av nkos thiab cov khoom lo rau ntawm kev txav mus los thaum lub sijhawm tsim kho.

Cov av diatom nws tus kheej tsis muaj kuab paug, yog ntuj tsim, thiab muaj ntau yam haujlwm, uas tsis muaj qhov sib piv rau cov xim ib txwm muaj xws li cov xim latex thiab cov ntawv ntsa. Thaum kho kom zoo nkauj nrog cov av diatom, tsis tas yuav txav mus los, vim tias cov av diatom tsis muaj ntxhiab thaum lub sijhawm tsim kho, nws yog ntuj tsim, thiab nws yooj yim kho. Yog li ntawd, cov av diatom muaj qhov yuav tsum tau ua siab rau kev xaiv hydroxypropyl methylcellulose.