HPMC makamaka imagwira ntchito yosunga madzi ndikukhuthala mumatope a simenti ndi matope opangidwa ndi gypsum, omwe amatha kupititsa patsogolo mgwirizano ndi kukana kwa slurry.
Zinthu monga kutentha kwa mpweya, kutentha ndi kuthamanga kwa mphepo zidzakhudza kuchuluka kwa madzi mumatope a simenti ndi gypsum.Chifukwa chake, munyengo zosiyanasiyana, kuwonjezera kuchuluka komweko kwa HPMC, kusungidwa kwamadzi kwazinthuzo kumakhala ndi zosiyana.Kusungidwa kwa madzi kwa methyl cellulose ether pa kutentha kwakukulu ndi chizindikiro chofunikira kusiyanitsa ubwino wa methyl cellulose ether.HPMC yabwino kwambiri imatha kuthetsa vuto la kusunga madzi pansi pa kutentha kwakukulu.M'nyengo zotentha kwambiri, makamaka m'malo otentha komanso owuma komanso zomangira zowonda kwambiri kumbali yadzuwa, HPMC yapamwamba imafunika kuti ipititse patsogolo kusunga madzi kwa slurry.HPMC yapamwamba kwambiri, yogwirizana bwino kwambiri, magulu ake a methoxy ndi hydroxypropoxy amagawidwa mofanana pamagulu a cellulose maselo, omwe amatha kusintha luso la maatomu a okosijeni pa hydroxyl ndi etha kuti agwirizane ndi madzi kuti apange zomangira za haidrojeni, kotero kuti madzi aulere amakhala madzi omangika, kuti athe kuwongolera bwino kutuluka kwa madzi chifukwa cha kutentha kwanyengo ndikukwaniritsa kusungirako madzi ambiri.
Zapamwamba mapadi HPMC akhoza uniformly ndi mogwira omwazikana mu matope simenti ndi gypsum ofotokoza mankhwala, ndi encapsulates onse particles olimba, ndi kupanga filimu wetting, ndi chinyezi m'munsi pang'onopang'ono anamasulidwa kwa nthawi yaitali.The hydration anachita wa zinthu coagulating kumachitika, potero kuonetsetsa kugwirizana mphamvu ndi compressive mphamvu zakuthupi.Choncho, pomanga kutentha kwa chilimwe, kuti akwaniritse zotsatira za kusunga madzi, m'pofunika kuwonjezera mankhwala apamwamba a HPMC molingana ndi chilinganizo, apo ayi, padzakhala hydration yosakwanira, kuchepetsa mphamvu, kusweka, kupukuta ndi kugwa. chifukwa cha kuyanika mwachangu.Zimawonjezeranso zovuta zomanga kwa ogwira ntchito.Pamene kutentha kumachepa, kuwonjezereka kwa HPMC kumatha kuchepetsedwa pang'onopang'ono, ndipo zotsatira zofanana zosungira madzi zimatha kupezeka.
Nthawi yotumiza: Mar-26-2022