Cellulose Ether Hpmc ali ndi matope osungira madzi ndi kukula kwa matope a simenti ndi gypsum, omwe amatha kusintha modetsa mawu ndi kuthetsa matope ndi kukana kwa matope.
Zinthu monga kutentha kwa mpweya, kutentha ndi mpweya wopanikizika kumapangitsa kuti muchepetse chinyezi kuchokera kwa simenti ya simenti ndi gypsum. Chifukwa chake, pali zosiyana zina pakuwonjezera zinthu zomwezi kwa HPMC kuti musunge bwino madzi munthawi iliyonse.
Pothira konkriti, malo otsetsereka amatha kusinthidwa ndikuchulukitsa kutuluka. Kusunga kwamadzi kwa methyl cellulose ether kutentha kwambiri ndi njira yofunika kwambiri kusiyanitsa mtundu wa methyl cellulose ether.
Zinthu zapamwamba za HPMC zimatha kuthana bwino ndi vuto la magetsi otentha kwambiri. Mu nyengo zotentha kwambiri, makamaka m'malo otentha komanso olemera komanso njira zopangira cromography.
HPMC yapamwamba kwambiri imakhala yokwanira, ndipo methoxyl ndi hydroxypyl amagawidwanso pa cellulose, yomwe imatha kukulitsa mamolekyulu am'madzi kuti apange zolumikizira za Hydroxyl.
Imatha kuyendetsa bwino madzi oyambitsidwa ndi nyengo yotentha ndikukwaniritsa zotsekemera zamadzi. Mitundu yapamwamba kwambiri ya methyllulose hpmc imatha kugwiritsidwa ntchito matope osakanikirana ndi pulasitala ya parris.
Sinthani tinthu tokhazikika kuti mupange filimu yonyowa, ndipo chinyezi mu chinyezi chidzamasulidwa pang'onopang'ono kwa nthawi yayitali, ndikuchita ndi zinthu zopanda mafuta komanso zida zopangira mphamvu.
Chifukwa chake, pamalo otentha omanga chilimwe, kuti tikwaniritse zinthu za kupulumutsa madzi, tiyenera kuwonjezera zinthu zapamwamba za HPMC malinga ndi chinsinsi, kutengera mphamvu, kuchepetsedwa, kusokonekera, gasi wamagesi ndi mavuto ena apadera. Zimapangitsa kuuma mwachangu kwambiri.
Izi zimawonjezera zovuta zomanga antchito. Kutentha kumachepa, kuchuluka kwa hpmc kumawonjezera pang'onopang'ono kumachepetsa zinthu zomwezi.
Post Nthawi: Meyi-11-2023