Skim tsho tiv no yog dab tsi?

Lub tsho skim yog ib txheej nyias ntawm cov khoom siv rau ntawm phab ntsa lossis qab nthab kom du tawm qhov tsis zoo thiab tsim ib qho chaw tiaj tus rau tha xim lossis wallpapering. Cov khoom siv rau skim txheej yog feem ntau sib tov dej, cement, thiab lwm yam additives xws li cellulose ether.

Cellulose ether yog dej-soluble polymer muab los ntawm ntuj cellulose. Nws yog dav siv nyob rau hauv kev tsim kho kev lag luam raws li ib tug thickener, stabilizer, binder, thiab dej retention agent. Nyob rau hauv cov ntaub ntawv ntawm skim tsho, cellulose ether yog ntxiv rau qhov sib tov los muab kev txhim kho kev ua haujlwm thiab dej tuav cov khoom.

Ib qho tseem ceeb luag hauj lwm ntawm cellulose ether nyob rau hauv skim tsho yog nws muaj peev xwm mus thicken lub sib tov. Skim tsho tiv no yuav tsum nyias txaus kom kis tau yooj yim tshaj ntawm qhov chaw tab sis tuab txaus los sau rau hauv qhov khoob lossis qhov tsis zoo. Cellulose ether pab kom ua tiav txoj cai sib xws los ntawm thickening cov sib tov, ua kom yooj yim rau kis tusyees saum npoo.

Lwm txoj haujlwm tseem ceeb ntawm cellulose ether hauv skim tsho yog nws lub peev xwm khaws dej. Skim tsho tiv no yuav tsum nyob twj ywm noo rau ib lub sij hawm ntawm lub sij hawm los xyuas kom meej adhesion kom zoo thiab tiv thaiv cracking los yog shrinkage. Cellulose ether pab khaws cov dej hauv qhov sib tov, uas ua rau cov txheej txheem kom qhuav thiab ua kom lub tsho skim teeb kom zoo.

Cellulose ether kuj ua raws li ib tug binder nyob rau hauv skim tsho, pab tuav lub sib tov ua ke thiab txhim kho nws adhesion rau saum npoo. Qhov no ua kom lub tsho skim ua kom muaj kev sib raug zoo nrog rau saum npoo, tsim kom muaj qhov du thiab txawm tias nto rau pleev xim lossis wallpapering.

Qhov zoo thiab kev ua tau zoo ntawm skim tsho tiv no zoo heev los ntawm hom thiab tus nqi ntawm cellulose ether siv. Muaj ntau hom cellulose ether muaj nyob hauv khw, xws li hydroxyethyl cellulose (HEC), methyl cellulose (MC), thiab carboxymethyl cellulose (CMC). Txhua hom muaj cov khoom sib txawv thiab cov yam ntxwv, thiab xaiv hom thiab tus nqi yog qhov tseem ceeb hauv kev txiav txim siab qhov zoo ntawm skim tsho.

Hauv cov ntsiab lus, cellulose ether plays lub luag haujlwm tseem ceeb hauv kev tsim cov skim tsho. Nws muab qhov tsim nyog thickening, khi, thiab dej tuav cov khoom rau qhov sib tov, uas ua kom nws ua haujlwm tau zoo, txhim kho adhesion, thiab tiv thaiv kev tawg lossis shrinkage. Xaiv hom thiab tus nqi ntawm cellulose ether yog qhov tseem ceeb hauv kev tsim cov tsho zoo nkauj skim uas ua tau raws li cov qauv xav tau ntawm kev tsim kho kev lag luam.