Hydroxypropyl methyl cellulose le carboxymethyl cellulose sodium li ka kopanngoa

Hydroxypropyl methyl cellulose (HPMC) le carboxymethyl cellulose sodium (CMC)) ke di-derivative tse pedi tsa cellulose tse sebediswang haholo diindastering tse fapaneng ka lebaka la thepa le mesebetsi ya tsona e ikgethang. Le hoja ka bobedi e le di-polymer tse thehilweng ho cellulose, di fapana ka sebopeho le thepa ya tsona ya dikhemikhale, e leng se etsang hore di lokele ditshebediso tse fapaneng. Leha ho le jwalo, maemong a mang, di ka kopanngwa ho fihlella dibopeho tse itseng tsa tshebetso kapa ho ntlafatsa thepa e itseng ya sehlahiswa sa ho qetela.

Hydroxypropyl methyl cellulose (HPMC), e tsejoang hape e le hypromellose, ke ether ea cellulose e seng ea ionic e nkiloeng ho cellulose ea polymer ea tlhaho. E hlahisoa ka karabelo ea alkali cellulose ka propylene oxide le methyl chloride. HPMC e sebelisoa haholo meriana, thepa ea kaho, lihlahisoa tsa lijo le litlolo ka lebaka la thepa ea eona e ntle ea ho etsa filimi, ho teteana, ho tlama le ho boloka metsi. HPMC e fumaneha ka mekhahlelo e fapaneng ka maemo a fapaneng a viscosity, e leng se lumellang hore e sebelisoe lits'ebetsong tse fapaneng.

Ka lehlakoreng le leng, carboxymethyl cellulose sodium (CMC) ke setlolo sa anionic se qhibilihang ka metsing se fumanoang ka karabelo ea cellulose ka sodium hydroxide le chloroacetic acid. CMC e tsebahala ka bokhoni ba eona bo phahameng ba ho boloka metsi, bokhoni ba ho teteana, thepa ea ho etsa filimi, le botsitso maemong a fapaneng a pH. E fumana ts'ebeliso lihlahisoa tsa lijo, meriana, litlolo, masela le tlhahiso ea pampiri ka lebaka la ho tenyetseha ha eona le ho lumellana ha eona le lintho tse phelang.

Leha HPMC le CMC li arolelana litšobotsi tse tšoanang tse kang ho qhibiliha ha metsi le bokhoni ba ho etsa filimi, li boetse li bontša litšobotsi tse ikhethang tse li etsang hore li lokele lits'ebetso tse itseng. Mohlala, HPMC e khethoa mefuteng ea meriana e kang matlapa le likhasephe ka lebaka la litšobotsi tsa eona tsa ho lokolloa tse laoloang le ho lumellana le metsoako e sebetsang ea meriana. Ka lehlakoreng le leng, CMC e sebelisoa hangata lihlahisoa tsa lijo tse kang lisoso, li-dressing le lintho tse besitsoeng e le sesebelisoa sa ho teteana le ho tsitsisa.

Ho sa tsotellehe liphapang tsa tsona, HPMC le CMC li ka kopanngoa hammoho ka mekhoa e itseng ho fihlela liphello tsa tšebelisano-'moho kapa ho ntlafatsa litšobotsi tse itseng. Ho lumellana ha HPMC le CMC ho itšetlehile ka lintlha tse 'maloa tse kang sebopeho sa tsona sa lik'hemik'hale, boima ba limolek'hule, tekanyo ea ho nkeloa sebaka, le litšobotsi tse lakatsehang tsa sehlahisoa sa ho qetela. Ha li kopantsoe hammoho, HPMC le CMC li ka bontša litšobotsi tse ntlafetseng tsa ho teteana, ho tlama le ho etsa filimi ha li bapisoa le ho sebelisa polymer feela.

Tšebeliso e 'ngoe e tloaelehileng ea ho kopanya HPMC le CMC ke ho theheng litsamaiso tsa ho fana ka meriana tse thehiloeng ho hydrogel. Li-hydrogel ke meaho ea marang-rang ea mahlakore a mararo e khonang ho monya le ho boloka metsi a mangata, e leng se etsang hore li lokele lits'ebetso tse laoloang tsa ho ntša meriana. Ka ho kopanya HPMC le CMC ka litekanyo tse loketseng, bafuputsi ba ka fetola litšobotsi tsa li-hydrogel tse kang boitšoaro ba ho ruruha, matla a mechini, le kinetics ea ho ntša meriana ho fihlela litlhoko tse itseng.

Tšebeliso e 'ngoe ea ho kopanya HPMC le CMC ke ho lokiseng lipente le lipente tse thehiloeng metsing. HPMC le CMC hangata li sebelisoa e le li-thickeners le li-rheology tse fetolang pente tse thehiloeng metsing ho ntlafatsa litšobotsi tsa tsona tsa ts'ebeliso, joalo ka ho ba bonolo ho hlatsoa, ​​​​ho hanyetsa ho oa, le ho hanyetsa ho fafatsa. Ka ho fetola karolelano ea HPMC ho CMC, li-formulator li ka fihlela viscosity le mokhoa o lakatsehang oa pente ha li ntse li boloka botsitso le ts'ebetso ea eona ha nako e ntse e ea.

Ntle le meriana le dikobo, metswako ya HPMC le CMC le yona e sebediswa indastering ya dijo ho ntlafatsa sebopeho, botsitso le kutlo ya molomo ya dihlahiswa tse fapaneng tsa dijo. Mohlala, HPMC le CMC hangata di eketswa dihlahisweng tsa lebese tse kang yogurt le ice cream e le di-stabilizer ho thibela karohano ya mekhahlelo le ho ntlafatsa boreledi. Dihlahisweng tse besitsweng, HPMC le CMC di ka sebediswa e le di-conditioner tsa hlama ho ntlafatsa bokgoni ba ho sebetsana le hlama le ho eketsa nako ya ho e boloka.

ha hydroxypropyl methyl cellulose (HPMC) le carboxymethyl cellulose sodium (CMC) e le di-derivative tse pedi tse fapaneng tsa cellulose tse nang le thepa le ditshebediso tse ikgethang, di ka kopanngwa mmoho ka diforomo tse itseng ho fihlella ditlamorao tsa tshebedisano kapa ho ntlafatsa thepa e itseng. Ho tsamaellana ha HPMC le CMC ho itshetlehile ka mabaka a fapaneng a kang sebopeho sa tsona sa dikhemikhale, boima ba dimolek'hule, le thepa e lakatsehang ya sehlahiswa sa ho qetela. Ka ho kgetha ka hloko karolelano le motswako wa HPMC le CMC, di-formulator di ka fetola thepa ya diforomo tsa tsona ho fihlela ditlhoko tse itseng meriana, dikobo, dihlahiswa tsa dijo le diindasteri tse ding.