HPMC imatha kusungunuka mu solvent yosakanizidwa ndi madzi ozizira ndi zinthu zachilengedwe kuti ipange yankho lowoneka bwino lokhuthala. Yankho lamadzi limagwira ntchito pamwamba, lowonekera bwino komanso lokhazikika kwambiri. Kusungunuka kwake m'madzi sikukhudzidwa ndi pH. Lili ndi mphamvu zokhuthala komanso zoletsa kuzizira mu shampu ndi shawa gel, ndipo limasunga madzi komanso limapangitsa tsitsi ndi khungu kukhala ndi filimu yabwino. Ndi kuchuluka kwakukulu kwa zinthu zoyambira, cellulose (antifreeze thickener) imatha kuchepetsa mtengo kwambiri ndikupeza zotsatira zabwino ikagwiritsidwa ntchito mu shampu ndi shawa gel.
Madzi ozizira a hydroxypropyl methyl cellulose omwe amapangidwa tsiku ndi tsiku ali ndi makhalidwe awa:
1. Kugwira bwino ntchito yosunga madzi. HPMC ili ndi makhalidwe okonda madzi. Imatha kusunga madzi ambiri mu zinthu zopangidwa ndi phala, phala ndi phala.
2. Madzi ozizira ofulumira hydroxypropyl methylcellulose HPMC imagwiritsa ntchito zinthu zachilengedwe zopangira, zomwe zimakhala ndi mphamvu zochepa, sizimayambitsa kuyabwa kwambiri, zimateteza chilengedwe komanso zimakhala ndi chitetezo.
3. PH ndi yokhazikika, ndipo kukhuthala kwa yankho lamadzi nthawi zambiri kumakhala kokhazikika pakati pa pH3.0 ndi 11.0.
4. Madzi a mankhwalawa ali ndi ntchito pamwamba, emulsification, chitetezo cha colloid komanso kukhazikika. Kupsinjika kwake pamwamba ndi pafupifupi 2% ndipo madzi amadzi ndi 42-56dyn/cm.
5. Kukhuthala ndi kusungunuka kwa madzi, kumatha kusungunuka mwachangu m'madzi ozizira, zinthu zina zachilengedwe komanso zosakaniza ndi zinthu zachilengedwe.
6. Kuonjezera kukhuthala: pamene kusungunuka pang'ono kwawonjezeka, njira yowonekera yokhuthala idzapangidwa, yomwe ili ndi makhalidwe a kugwira ntchito kokhazikika komanso kuwonekera bwino kwambiri. Kusungunuka kudzasintha ndi kukhuthala. Kutsika kwa kukhuthala, kumachepetsa kusungunuka, zomwe zingathandize bwino kukhazikika kwa kayendedwe ka dongosolo.
7. Kukana mchere bwino kwambiri. HPMC ndi polima yopanda ionic, yomwe imakhala yokhazikika mu yankho lamadzi la organic electrolyte kapena organic electrolyte.
8. Kutenthetsa madzi: pamene madzi akumwa atenthedwa kufika kutentha kwinakwake, sadzaonekera bwino mpaka atapanga flocculation state, zomwe zingapangitse kuti yankholo litaye kukhuthala kwake koyenera. Komabe, lidzasintha kukhala momwe linalili poyamba yankholo litazizira. Pa vuto la thermal gel, kutentha kumadalira kwambiri mtundu wa chinthucho, kuchuluka kwa yankholo komanso kuchuluka kwa kutentha.
9. HPMC ili ndi zinthu zina zomwe zimagwiritsidwa ntchito tsiku ndi tsiku monga kupanga filimu, kukana kwambiri ma enzyme, kufalikira ndi kugwirizana.
Nthawi yotumizira: Julayi-29-2022