Cellulose ether nijambo rusange ryuruhererekane rwibicuruzwa byakozwe nigisubizo cya alkali selulose hamwe na etherifying agent mubihe bimwe.Alkali selulose isimburwa nibintu bitandukanye bya etherifing kugirango babone bitandukanyeselile ethers.Ukurikije imiterere ya ionisation yibisimburwa, ethers ya selile irashobora kugabanywamo ibyiciro bibiri: ionic (nka carboxymethyl selulose) na non-ionic (nka methyl selulose).Ukurikije ubwoko bwinsimburangingo, ether ya selile irashobora kugabanywamo kimwe (nka methyl selulose) na ether ivanze (nka hydroxypropyl methyl selulose).Ukurikije ibisubizo bitandukanye, birashobora kugabanywa mu gushonga amazi (nka hydroxyethyl selulose) hamwe na solvent-soluble (nka Ethyl selulose), nibindi. igabanijwe muburyo bwihuse hamwe nubuso bwavuwe bwatinze guseswa.
Nyuma ya selile ya selulose muri minisiteri imaze gushonga mumazi, ikwirakwizwa ryiza kandi ryuzuye ryibintu bya sima muri sisitemu ryemezwa bitewe nigikorwa cyo hejuru, hamwe na ether ya selile, nka colloide ikingira, "ipfunyika" ibice bikomeye kandi bitwikiriye hejuru yinyuma.Kora firime isiga amavuta, kora sisitemu ya minisiteri ihamye, kandi unatezimbere amazi ya minisiteri mugihe cyo kuvanga no gukora neza.
Bitewe nuburyo bwimiterere ya molekuline, umuti wa selulose ether utuma amazi yo muri minisiteri atoroha kubura, kandi akayarekura buhoro buhoro mugihe kirekire, bigatuma minisiteri igumana amazi meza kandi ikora.
Kwiyubaka-hasi ya sima minima, hamwe na hydroxypropyl methylcellulose ether.Kubera ko ubutaka bwose busanzwe buringaniye hamwe nubushake buke bwabakozi bashinzwe ubwubatsi, ugereranije nuburyo bwambere bwo koroshya intoki, uburinganire nubwubatsi bwateye imbere cyane.Kwishyira hamwe kwumye kuvanga umwanya bifashisha uburyo bwiza bwo kubika amazi ya hydroxypropyl methylcellulose.Kubera ko kwishyira hamwe bisaba ko minisiteri ikozwe neza ishobora guhita iringaniza hasi, ibikoresho byamazi ni binini.Nyuma yo kongeramo hpmc, izagenzura ubutaka Kubika amazi hejuru yubutaka ntibigaragara, bigatuma imbaraga zubuso buba hejuru nyuma yo gukama, kandi kugabanuka ni bito, bigabanya gucamo.Kwiyongera kwa HPMC kandi bitanga ubukonje, bushobora gukoreshwa nkimfashanyo yo kurwanya imyanda, kongera amazi no kuvoma, no kunoza imikorere yo gutunganya ubutaka.
Ether nziza ya selile ifite imiterere igaragara nubucucike buto;HPMC isukuye ifite umweru mwiza, ibikoresho fatizo bikoreshwa mu musaruro birasukuye, reaction irasobanutse neza kandi idafite umwanda, igisubizo cyamazi kirasobanutse, kohereza urumuri ni rwinshi, kandi nta amoniya, krahisi na alcool.Biryohe, fibrous munsi ya microscope cyangwa ikirahure kinini.
Igihe cyo kohereza: Ukuboza-06-2022