Kumanga wapadera hydroxypropyl methyl cellulose kupewa kulowerera chinyezi pakhoma, adzakhala basi kuchuluka kwa chinyezi akhoza kukhala mu matope simenti kubala ntchito yabwino m'madzi ndi udindo wa hydroxypropyl methyl mapadi mu matope akhoza molingana ndi mamasukidwe akayendedwe, kukwezera kukhuthala kwa hydroxypropyl methyl cellulose kusungidwa kwa madzi kudzakhala bwino.
Chinyontho cha hydroxypropyl methyl cellulose chikakwera kwambiri, kusungidwa kwa madzi kwa hydroxypropyl methyl cellulose kudzachepa, ndipo kutsogolere kukupanga bwino kwa hydroxypropyl methyl cellulose. Timadziwanso zinthu zidzakhala zosavuta kupanga zolakwa, tiyenera kukhala atsopano, tidzalandira zotsatira zosayembekezereka.
Kukhuthala kowonekera ndi index yofunikira ya hydroxypropyl methyl cellulose. Njira zoyezera zodziwika bwino ndi kuyeza kwa kukhuthala kozungulira, kuyeza kukhuthala kwa capillary ndi kuyeza kwamakayendedwe akugwa.
M'mbuyomu, hydroxypropyl methyl cellulose idatsimikiziridwa ndi kuyeza kwa capillary viscosity, pogwiritsa ntchito viscometer ya Uhnscher. Njira yoyezera nthawi zambiri imakhala yamadzimadzi ya 2, ndipo njira yake ndi: V=Kdt. V ndi mamasukidwe akayendedwe masekondi, K ndi mosalekeza wa viscometer, D ndi kachulukidwe pa kutentha nthawi zonse, ndipo T ndi nthawi zimatengera kuchokera pamwamba mpaka pansi pa viscometer mu masekondi. Njira imeneyi ntchito ndi zovuta, ngati pali insoluble zinthu, n'zosavuta kuyambitsa zolakwika, n'zovuta kuzindikira khalidwe hydroxypropyl methylcellulose.
Vuto lomanga guluu stratification ndivuto lalikulu lomwe makasitomala amakumana nawo. Choyamba, vuto la zopangira liyenera kuganiziridwa pomanga stratification ya glue. Chifukwa chachikulu chomangira guluu stratification ndi kusagwirizana pakati pa polyvinyl mowa (PVA) ndi hydroxypropyl methylcellulose (HPMC). Chifukwa chachiwiri ndi chakuti nthawi yosakaniza sikwanira; Palinso kumanga guluu thickening ntchito si bwino.
Pomanga zomatira, instant hydroxypropyl methylcellulose (HPMC) iyenera kugwiritsidwa ntchito chifukwa HPMC imamwazikana m'madzi ndipo simasungunuka kwenikweni. Pafupifupi mphindi 2, kukhuthala kwamadzimadzi kumawonjezeka pang'onopang'ono, ndikupanga mawonekedwe a viscous colloid.
Kutentha sungunuka mankhwala, m'madzi ozizira, akhoza mwamsanga omwazika m'madzi otentha, kutha m'madzi otentha, pamene kutentha akutsikira ndi kutentha, mamasukidwe akayendedwe pang'onopang'ono limapezeka, mpaka mapangidwe mandala viscous colloid. Hydroxypropyl methylcellulose (HPMC) mu nyumba yomanga guluu kuchuluka akulimbikitsidwa 2-4kg.
Hydroxypropyl methyl cellulose (HPMC) m'nyumba yomanga guluu kukhazikika kwa mankhwala, mildew, madzi osungira madzi ndi abwino, ndipo samakhudzidwa ndi kusintha kwa PH, kukhuthala kwa 100 000 S - 200 000 S kungagwiritsidwe ntchito. Koma kupanga si apamwamba mamasukidwe akayendedwe ndi bwino, mamasukidwe akayendedwe ndi chomangira mphamvu inversely proportional, apamwamba mamasukidwe akayendedwe, mphamvu ndi ang'onoang'ono, zambiri 100,000S mamasukidwe akayendedwe koyenera.
Nthawi yotumiza: Sep-16-2022