Hydroxypropypropinyl MethylceLulose (HPMC) ke polymer e sa fetoheng ea pompong e fapaneng ea indasteri e fapaneng, ho kopanyelletsa le mekhabiso, lijo le litlolo.
1. Selelekela ho HPMC:
Hydroxypropypropinyl methylcelllulose (HPMC) ke semi-synthetic, jete, Viscoelalastic polymer e tsoang cellulose. E entsoe ka phetoho ea lik'hemik'hale ea lik'hemik'hale, e amang phallo ea alkali cellulose ea alkali le axide le methyl chloride. Sehlahisoa se hlahisitsoeng ke sefi se tšoeu se sa feteng-tšoeu, se nang le monko
2. Sebopeho le thepa:
Sebopeho sa HPMC se na le mokokotlo oa selefounu, polymer ea tlhaho e entsoeng ka likarolo tsa glucose e amanang le Β (1 → Ka HPMC, tse ling tsa lihlopha tse ling tsa hydroyl li le litsing tsa glucose li nkeloa sebaka ka lihlopha tsa li-hydroxypropyl le lihlopha tsa methyl. Sebaka sena se akaretsa thepa ea polytmer ea polytrice ha e bapisoa le cellulole ea tlhaho, e se e hlahisang lisolule, liketsahalo tse etsang filimi.
Bophahamo ba HPMC bo fapana ho latela lintlha tse kang degree ea sebaka (DS), boima ba balek'hule, boima ba molelelaneng, boholo ba lisele. Ka kakaretso, lithibelo tsa HPMC:
Thepa e ntle ea filimi e etsang lifilimi
Boitšoaro ba bokhachane bo futhumatsang
Bophahamo bo phahameng ba metsi
Botsitso holim'a boholo ba pH
Ho tsamaisana le li-polymers tse ling le litlatsetso tse ling
Boemo ba Ionic, bo e etsa hore e lumellane le lisebelisoa tse fapaneng
3. Synthesis ea hpmc:
Synthes of Hpmc e kenyelletsa mehato e mengata:
Alkali Cellulose Ho beleha: Kellulose e phekoloa ka Tharollo ea Alkanaline ea ho theha Cellulose ea Alkali.
Etherization: Alkali Choulose Uplease Upleane
Ho hlatsoa le ho hloekisoa: sehlahisoa se hlatsoitsoeng se hlatsoitsoe, se ferekane le ho hloekisoa ho tlosa litšila.
Ho omella: HPMC e hloekisitsoeng e omisitsoe ho fumana sehlahisoa sa ho qetela ka foromo ea phofo.
4. Likopo tsa HPMC:
HPMC e fumana lits'ebetso tse sa tloaelehang ho indasteri e fapaneng:
Pharmaceutical: HPMC e sebelisoa haholo e le moepa oa meriana, melaoana e laoloang e laoloang, litokisetso tsa li-ophthal. E sebeletsa e le seriti, bolo, ea pele ea filimi le baemeli ba nang le matla a khopehileng - liforomo tsa litekanyetso tse fapaneng.
Indasteri ea lijo: Litumpong tsa lijo, HPMC li sebelisoa e le boloi ba ho be le boithatelo, e moqotetsane le li-sossets. E ntlafatsa methapo, bophelo ba sehatsetsi, le ka handfeel lihlahisoa tsa lijo.
Kaho: HPMC ke motsoako oa bohlokoa ka har'a lisebelisoa tsa kaho tse kang litlolo tse thehiloeng ho saense, lipapatso tsa Tile. E sebetsa joalo ka moemeli oa ho boloka metsi, o ntlafatsa, o sebelisa ho sesa, 'me o ntlafatsa ho latela mefuang ea kaho.
Li-cosmetics: HPMC e sebelisoa ho li-cosmetics le lihlahisoa tsa tlhokomelo ea botho joalo ka molora, le moemeli ea etsang lifilimi lihlahisoa tse kang litlolo tse kang litlolo, li-shampoos, le gels. E fana ka liketsahalo, e ntlafatsa mokhoa, 'me e fana ka maikutlo a boreleli, a sa futhumatsang.
Likopo tse ling: HpMC e boetse e sebelisoa khatisong ea masela, feme, lipente, likotoana tsa lits'ebetso tse sa tsejoeng tsa indasteri.
5. Litlholisano tsa nako e tlang le mathata:
Tlhokahalo ea HPMC e lebelletsoe ho tsoela pele ho hola ka lebaka la thepa ea eona e fapana le lits'ebeliso tse fapaneng. Leha ho le joalo, mathata a kang ho fokotsa litheko tse tala, litšitiso tse phahameng tsa chelete, mathata a ntlafatsang le tlholisano ea lihlomo tse fapaneng li ka ama matla a 'maraka. Boiteko ba lipatlisiso bo ikemiselitse ho ntlafatsa tšebetso ea HPMC
Hydroxypropypropinyl Methylcellll (HPMC) ke polymer ea bohlokoa e nang le likopo tse fapaneng tsa likopo tse ngata. Its unique structure, properties, and synthesis make it an essential ingredient in pharmaceuticals, food products, construction materials, cosmetics, and various industrial applications. Joalokaha ho etsa lipatlisiso le boiteko ba ntlafatso tsoela pele, HPM li ikemiselitse ho lula e le sebapali sa bohlokoa indastering ea polymer, fana ka tharollo e itseng ea ho etsa litlhoko tsa 'maraka.
Nako ea poso: Mar-05-2024