Hydroxypypyl ethern (hpmc)
Zinthu monga kutentha kwa mpweya, kutentha, ndi kuthamanga kwa mpweya kumawononga kuchuluka kwa madzi mu mafoni a simenti ndi mankhwala a gypsum. Chifukwa chake, kuchuluka konse kwa malonda a hydroxypypyll methylcellulose ether (hpmc) kuwonjezera kupezeka kwa madzi kumasiyana nyengo ndi nyengo.
Mukathira konkriti, zotsatira za loko la madzi zimatha kusinthidwa molingana ndi kuchuluka kapena kuchepa kwa kukwera kwambiri. Kutsekera kwamadzi kwa hydroxypylpyl ethernchluse kutentha kwambiri ndi njira yofunikira kwambiri kusiyanitsa mtundu wa hydroxygyulose etherycellulose ether.
Ma hydroxypropyll methylcellulose ether (hpmc) amatha kuthana ndi vuto la kutentha kwa madzi otseka madzi. Mu nyengo zotentha kwambiri, makamaka m'malo otentha ndi otentha komanso nyumba zapamwamba, ndikofunikira kugwiritsa ntchito ma hydroxpyl a methylcellulose ether ether (hpmc) kuti musungunuke madzi.
Gawo la hydroxypypyl methylcellulose ether (hpmc) ndi yunifolomu kwambiri, ndipo methoxy ndi hydroxypyl osankhidwa ndi ma molekyulu a hydroxyl. Kuthekera kolumikizana bwino.
Itha kuwongolera moyenera madzi oyambitsidwa ndi nyengo yotentha ndikukwaniritsa zotsatira zenizeni zamadzi kwambiri. Hydroxypropyll methylcellulose ether (hpmc) imapezeka m'matiya osakanikirana ndi pulasitala ya parris.
Tinthu tating'onotinthu onse timayang'aniridwa kuti apange filimu yonyowa. Madzi achikhalidwe amamasulidwa pang'onopang'ono kwa nthawi yayitali ndipo amagwiritsa ntchito njira zogwirira ntchito ndi zinthu zachilengedwe komanso zida zowonongeka kuti zitsimikizire mphamvu yolumikizana ndi nyonga yamphamvu.
Chifukwa chake, pamasamba omanga-kutentha kwambiri m'chilimwe, kuti akwaniritse zenizeni za madzi opulumutsa, anthu ayenera kuwonjezera ma hydroxygyl a methyllulose etherllulose ether ether etherl ether kuchepa kwamadzi. Nkhani zabwino zopangidwa monga zolimba, zinachepetsa mphamvu zochulukitsa, ming'alu, mabatani amlengalenga, etc. amadzutsa kwambiri.
Izi zimawonjezera zovuta zomanga antchito. Pamene kutentha kumachepa, kuchuluka kowonjezeredwa kwa hydroxypypyl etherllulose ether ether (hpmc) pang'onopang'ono kumachepa kwambiri kuti akwaniritse zomwezi.
Post Nthawi: Feb-06-2024