Mphamvu ya mankhwala osagwira madzi pamitengo ya zokutira ndi pepala lokutidwa

Ndi chitukuko chachangu cha makampani pepala, makamaka TACHIMATA pepala yapangidwa mofulumira, makampani osindikizira pa TACHIMATA pepala zofunika khalidwe akukwera ndi apamwamba. Pofuna kutsimikizira kusindikiza kwapamwamba, pamwamba pa pepala lophimbidwa liyenera kukhala ndi mphamvu yokana kukangana konyowa. Kukaniza kwachitsulo chonyowa kumatanthawuza kuchuluka kwa kuwonongeka pamwamba pa pepala pambuyo poti malo ena a pepala ndi makatoni akugwedezeka ndi kukangana konyowa pansi pa zovuta zina, zomwe zimasonyeza mphamvu ya pamwamba pa pepala kuti isawonongeke ndi kukangana konyowa.

Ndipo pamapepala otchingidwa ndi madzi okhala ndi zofunikira zapadera, kuti apangitse kuti azitha kukana madzi komanso kukana madzi, popanga mapepala, kuwonjezera pakusintha kwazinthu zopangira singing ndi mawonekedwe apamwamba, chofulumira kwambiri ndikuwonjezera zowonjezera kukana madzi pokonzekera zokutira, kuti chosanjikizacho chipeze ntchito yabwino yothamangitsa madzi.

Panthawi imodzimodziyo, poganizira za chitetezo ndi chitetezo cha chilengedwe, zofunikira zamtundu wa mapepala ophimba chakudya ndi mapepala apanyumba zikukhala zovuta kwambiri, ndipo tsopano ndikugwiritsa ntchito polyamide polyurea formaldehyde resin (PAPU) yothamangitsira madzi. PAPU imagwiritsidwa ntchito kwambiri, chifukwa ilibe formaldehyde yaulere, ndipo imathamanga, imagwira ntchito ikachoka pamakina, komanso imatha kusintha bwino kusinthika kwa pepala lokutidwa posindikiza.

PAPU ili ndi ntchito yolimba ku pH mtengo, ndipo kukhuthala kwa PAPU yowonjezeredwa ku utoto ndikokhazikika ndipo kuthamanga kwa machiritso kumathamanga. PAPU maselo unyolo lili chloroethanol gulu ndi gulu polyamine awiri yogwira zinchito magulu awiri yogwira ntchito, amene chloroethanol gulu ndi zomatira utoto kubala mankhwala mgwirizano chomangira, gulu polyamine ndi utoto zomatira osakaniza kupanga ionic chomangira, mtanda zogwirizana machiritso kupanga maukonde kuchiritsa filimu, amene ali gwero lalikulu la PAPU madzi kukana, komanso monga ❖ kuyanika madzi zosagwira mfundo.

Pogwiritsidwa ntchito kwenikweni, PAPU sichingangopanga zomangira za mankhwala ndi wowuma wokutira, komanso kupanga zomangira za ionic ndi styrene butadiene latex, ndipo kukana konyowa kwa zokutira kumawonjezeka. Kuphatikiza apo, zofooka za cationic za PAPU zolimbana ndi madzi zimatha kutulutsanso micro-flocculation ndi anions mu zokutira, kupititsa patsogolo kudzikuza, porosity ndi permeability wa wosanjikiza wokutira, ndikuwongolera kusindikiza kwa pepala lomalizidwa.

Katundu wa Rheological ndi chizindikiro chofunikira cha utoto, mtundu wa PAPU wosagwirizana ndi madzi ukhoza kukulitsa kukhuthala kwa utoto, ndikuwonjezera mtundu wa PAPU wosamva madzi pakatha kuchepa kwa utoto, kusunga madzi kumakhala bwino. Mtundu wa PAPU wosagwirizana ndi madzi ndi woyenera kukonza utoto wowoneka bwino kwambiri, ndipo utoto wosungira madzi umakhala wabwinoko.