Etherification Ihame rya syntetique ya Hydroxypropyl Methyl Cellulose (HPMC)

Hydroxypropyl methylcellulose (HPMC), selulose mbisi, irashobora gutunganywa ipamba cyangwa igiti, birakenewe cyane kuyijanjagura mbere ya alkalisation cyangwa mugihe cya alkalisation, kandi kumenagura ni imbaraga za mashini Gusenya imiterere rusange yibikoresho fatizo bya selile kugirango ugabanye urugero rwa kristalline na polymerisiyasi, byongera ubuso bwacyo, bityo bizamure ubushobozi nubushobozi bwa reaction ya reaction ya reagent mumatsinda atatu ya hydroxyl kumatsinda ya glucose impeta ya selile ya macromolecule.

Hydroxypropyl methylcellulose (HPMC) ikoreshwa nkibikoresho fatizo byibanze kugirango bitange amavuta, ashobora kumenya ikoreshwa ryisukari yose, kunoza imikoreshereze y’ibikoresho fatizo, kugabanya umubare w’ibisigisigi bya substrate mu muyoboro wa fermentation, no kugabanya ikiguzi cy’amazi mabi. kwivuza.Iyi hydroxypropyl methylcellulose Ibiranga methylcellulose bifasha mugutezimbere icyiciro, kugaburirwa-hamwe na fermentation ikomeza, birinda urukurikirane rwibibazo nko kugenzura imiterere yikigereranyo cyo hagati no kugabanuka;bifasha kandi kugenga gahunda ya fermentation.Kubera ko imikorere ya hydroxypropyl methylcellulose (HPMC) isa nizindi eferi zishonga amazi, irashobora gukoreshwa mugushushanya irangi rya latex hamwe n’ibikoresho byo gusiga irangi ryamazi nkibikoresho bikora firime, kubyimba, emulisiferi na stabilisateur, nibindi. Filime ifite kwambara neza birwanya, kuringaniza no gufatira hamwe, kandi byateje imbere uburemere bwubutaka, gutuza kuri aside na alkali, no guhuza ibyuma byuma.

Hydroxypropyl methylcellulose (HPMC) igira ingaruka nziza nkibyimbye kumazi yera ashingiye kuri polyvinyl acetate.Urwego rwo gusimbuza ether ya selile rwiyongereye, kandi kurwanya isuri ya bagiteri nabyo byiyongera.

Nubwo ihame rya synthesis ya etherification ya hydroxypropyl methyl selulose (HPMC) itagoye, igomba kuba alkalisale, ibikoresho fatizo byangiritse, na alkalize.Buri bidukikije bya etherification, kugarura ibisubizo, centrifugation, gukaraba no gukama birimo umubare munini wikoranabuhanga ryingenzi nubumenyi bukungahaye.

Kubwoko butandukanye bwibicuruzwa, buri bidukikije bifite uburyo bugezweho bwo kugenzura, nkubushyuhe, igihe, igitutu no kugenzura ibintu.Ibikoresho bifasha nibikoresho byo kugenzura ni ingwate nziza kubicuruzwa bihamye hamwe na sisitemu yizewe yizewe.