Pakuboola, kuboola ndi kukonza mafuta ndi gasi wachilengedwe, khoma la chitsime limataya madzi mosavuta, zomwe zimapangitsa kusintha kwa kukula kwa chitsime ndi kugwa, kotero kuti ntchitoyi singathe kuchitika bwino, kapena ngakhale kutayidwa pakati. Chifukwa chake, ndikofunikira kusintha magawo enieni a matope oboola malinga ndi kusintha kwa mikhalidwe ya nthaka m'dera lililonse, monga kuya kwa chitsime, kutentha, ndi makulidwe. CMC ndiye chinthu chabwino kwambiri chomwe chingasinthe magawo awa achilengedwe. Ntchito zake zazikulu ndi izi:
Matope okhala ndi CMC angapangitse khoma la chitsime kukhala lopyapyala, lolimba komanso losalowa madzi ambiri, zomwe zingalepheretse madzi kulowa m'madzi, kuletsa kuti zidutswa zobowola zisabalalike, komanso kuchepetsa kugwa kwa khoma la chitsime.
Matope okhala ndi CMC ndi mtundu wa mankhwala owongolera kutayika kwa madzi omwe amagwira ntchito bwino kwambiri, amatha kuwongolera kutayika kwa madzi pamlingo wabwino kwambiri pamlingo wocheperako (0.3-0.5%), ndipo sangayambitse zotsatirapo zoyipa pa zinthu zina za matope, monga kukhuthala kwambiri kapena mphamvu yodula.
Matope okhala ndi CMC amatha kupirira kutentha kwambiri, ndipo nthawi zambiri angagwiritsidwe ntchito pamalo otentha kwambiri pafupifupi 140°C, monga zinthu zosinthira kwambiri komanso zokhuthala kwambiri, angagwiritsidwe ntchito pamalo otentha kwambiri a 150-170°C.
Matope okhala ndi CMC sagonjetsedwa ndi mchere. Makhalidwe a CMC pankhani ya kukana mchere ndi awa: sikuti amangosunga mphamvu yabwino yochepetsera kutayika kwa madzi pansi pa kuchuluka kwa mchere, komanso amatha kusunga mphamvu inayake ya rheological, yomwe ilibe kusintha kwakukulu poyerekeza ndi yomwe ili m'malo abwino; zonse ziwiri zingagwiritsidwe ntchito m'madzi obowola opanda dongo komanso m'malo amchere. Madzi ena obowola amathabe kukana mchere, ndipo mphamvu ya rheological sisintha kwambiri. Pansi pa kuchuluka kwa mchere wa 4% ndi madzi abwino, chiŵerengero cha kusintha kwa ma viscosity cha CMC yosagonjetsedwa ndi mchere chawonjezeka kufika pa 1, ndiko kuti, ma viscosity sangasinthidwe m'malo okhala ndi mchere wambiri.
Matope okhala ndi CMC amatha kulamulira rheology ya matope.CMCsikuti zimangochepetsa kutayika kwa madzi, komanso zimawonjezera kukhuthala.
1. Matope okhala ndi CMC angapangitse khoma la chitsime kukhala keke yopyapyala, yolimba komanso yothira madzi pang'ono, zomwe zimachepetsa kutaya madzi. Pambuyo powonjezera CMC ku matope, chobowoleracho chingakhale ndi mphamvu yochepa yoyambira, kotero kuti matopewo amatha kutulutsa mosavuta mpweya womwe wakulungidwa mmenemo, ndipo nthawi yomweyo, zinyalala zitha kutayidwa mwachangu m'dzenje la matope.
2. Monga momwe zimakhalira ndi zinthu zina zotayira, matope obowola amakhala ndi nthawi yokhazikika. Kuyika CMC kungathandize kuti ikhale yokhazikika ndikuwonjezera nthawi yokhazikika.
3. Matope okhala ndi CMC sakhudzidwa kawirikawiri ndi nkhungu, ndipo palibe chifukwa chosungira pH yapamwamba ndikugwiritsa ntchito zosungira.
4. Matope okhala ndi CMC ali ndi kukhazikika bwino ndipo amatha kuchepetsa kutayika kwa madzi ngakhale kutentha kuli pamwamba pa madigiri 150.
Nthawi yotumizira: Januwale-09-2023