Momwe mungasankhire HPMC kuchokera kusungirako madzi!

Kusunga madzi kuchokeraHydroxypropyl Methyl Cellulosendi imodzi mwazinthu zofunika kwambiri za Hydroxypropyl Methyl Cellulose. Zinthu monga kutentha kwa mpweya, kutentha ndi kuthamanga kwa mphepo zidzakhudza kusinthasintha kwa madzi mumatope a simenti ndi zinthu zopangidwa ndi gypsum. Chifukwa chake, munyengo zosiyanasiyana, pamakhala kusiyana kwina pakusunga madzi pazinthu zomwe zili ndi Hydroxypropyl Methyl Cellulose yowonjezeredwa.

Nthawi zambiri, kukhathamira kwamphamvu kwa Hydroxypropyl Methyl Cellulose, kumapangitsa kuti madzi asungidwe bwino, koma zotsatira za mamasukidwe akayendedwe pa kusungirako madzi zidzachepetsedwa pamene mamasukidwe akayendedwe amaposa 100,000 mpa.s. Kwa Hydroxypropyl Methyl Cellulose yokhala ndi mamasukidwe opitilira 100,000, ndikofunikira kuwonjezera kuchuluka kwa Hydroxypropyl Methyl Cellulose kuti muwonjezere kuchuluka kwa kusungirako madzi.

Pakumanga kwapadera, mphamvu yosungira madzi ya slurry imatha kusinthidwa ndikuwonjezera kapena kuchepetsa kuchuluka kwa Hydroxypropyl Methyl Cellulose. Mankhwala a Hydroxypropyl Methyl Cellulose amatha kuthetsa vuto la kusunga madzi kutentha kwambiri. M'nyengo yotentha kwambiri, makamaka m'madera otentha ndi owuma komanso zomangamanga zowonda kumbali yadzuwa, hydroxypropyl methylcellulose yapamwamba imafunika kuti madzi asungidwe bwino.

Maselo apamwamba a Hydroxypropyl Methyl Cellulose ali ndi mawonekedwe abwino kwambiri. Magulu ake a Methoxy ndi Hydroxypropoxy amagawidwa mofanana pamagulu a cellulose. Itha kusintha maatomu a okosijeni pamabondi a hydroxyl ndi ether. Kutha kwa mayanjano amadzi kuti apange ma hydrogen bond amasintha madzi aulere kukhala madzi omangika, motero amawongolera bwino kutuluka kwa madzi chifukwa cha nyengo yotentha kwambiri ndikusunga madzi ambiri.

Mapangidwe apamwambahydroxypropyl methyl celluloseakhoza wogawana ndi bwino kumwazikana mu matope simenti ndi gypsum ofotokoza mankhwala, kukulunga particles onse olimba, ndi kupanga lonyowa filimu, ndi chinyezi m'munsi adzamasulidwa pang'onopang'ono kwa nthawi yaitali. A hydration reaction zimachitika ndi inorganic gelling zakuthupi, potero kuonetsetsa mphamvu ya mgwirizano ndi mphamvu yopondereza ya zinthuzo. Choncho, pomanga chilimwe chotentha kwambiri, kuti mukwaniritse kusungirako madzi, m'pofunika kuwonjezera mankhwala apamwamba a Hydroxypropyl Methyl Cellulose mochuluka molingana ndi ndondomekoyi, mwinamwake, kuchepa kwa madzi, kuchepa kwa mphamvu, ndi kusweka kudzachitika chifukwa cha kuyanika kwakukulu. Mavuto abwino monga kugwetsa, kugwetsa ndi kugwa kumawonjezeranso zovuta zomanga kwa ogwira ntchito. Pamene kutentha kumatsika, kuchuluka kwa Hydroxypropyl Methyl Cellulose kungathe kuchepetsedwa pang'onopang'ono, ndipo zotsatira zofanana zosungira madzi zimatha kupezeka.