Uruhare rwa selile mukwiringaniza minisiteri

Uburenganzira bwa Cellulose ni ijambo rusange ryo gukurikiranwa n'ibicuruzwa byakozwe na reaction ya selile ya alkali n'umukozi ukurikiraho mu bihe bimwe na bimwe. Cellulose ya Alkali isimburwa nimpamvu zitandukanye zifatika zo kubona abahanga ba seliki zitandukanye. Nk'uko byatangajwe n'imiterere ya sionisation y'abasimbuye, abakoresha selile barashobora kugabanywa mu byiciro bibiri: ionic (nka carboxymethyl selile ya selile) n'ibitari iporilose (nka methyl selile). According to the type of substituent, cellulose ether can be divided into monoether (such as methyl cellulose) and mixed ether (such as hydroxypropyl methyl cellulose). Ukurikije ibyokuntu bitandukanye, birashobora kugabanywamo amazi (nka hydroxyithyll.

Nyuma ya selile ether muri minisiteri yasheshwe mumazi, ikwirakwizwa ryimikorere ikora neza muri sisitemu ryemewe kubera ibikorwa byo hejuru, kandi selile irangiza "ibice bikingira kandi bitwipfukirana hejuru. Shiraho film yoroheje, kora sisitemu ya minisiteri ihamye neza, kandi inoza ibitekerezo bya minisiteri mugihe cyo kuvanga no kwihitiramo.

Bitewe n'imiterere yacyo, ether ether igisubizo kituma amazi atuma amazi yo muri minisiteri ataroroshye gutakaza, buhoro buhoro ayisohoka mugihe kirekire, ahabwa minisiteri yo kugumana amazi no gukorana.

Ubutaka bwo kwishyira hejuru bwa centrir, hamwe na stycosity nkeya hydroxypropyl methylcellse ether. Kubera ko ubutaka bwose busanzwe bufite uruhare runini n'abakozi b'ubwubatsi, ugereranije n'imikorere ya mbere yo koroshya, igorofa n'ubwubatsi bunoze cyane. Kwigereranya igihe cyumye cyo kuvanga byifashisha ihohoterwa ryiza rya hydroxypropyl methylcellse. Kubera ko kuringaniza bisaba ko ubuntu bukabije bushobora guhita bushobora guhindukira hasi, ibikoresho byamazi ni binini. Nyuma yo kongeraho HPMC, bizagenzura hasi kugumana amazi yubuso ntabwo bigaragara, bituma imbaraga zo hejuru ziri hejuru nyuma yo gukama, kandi agabaje ni bito, bigabanya ibice. Ongeraho HPMC kandi itanga viscosity, ishobora gukoreshwa nkimfashanyo irwanya edimentation, yongererana amazi, no kunoza imikorere yo guha agaciro ubutaka.

Ubugari bwiza bufite imiterere yuzuye hamwe nubucucike buke; HPMC yera ifite channene nziza, ibikoresho fatizo bikoreshwa mu musaruro ni byiza, reaction nuburakari ni byinshi, kandi igisubizo cya Ammonia, kandi nta Ammonia, udusimba na alcool. Uburyohe, fibrous munsi ya microscope cyangwa ikirahure.