Focus on Cellulose ethers

Uruhare rwa HPMC muri Drymix Mortars

Uruhare rwa HPMC muri Drymix Mortars

Hydroxypropyl methylcellulose (HPMC) ninyongera ikoreshwa cyane muri minisiteri yumye. Nibikomoka kuri selile ikora amazi kandi ikagira ubushobozi bwo gukora ibintu bimeze nka gel iyo byongewe kumazi. Uyu mutungo utuma HPMC iba umubyimba mwiza kandi uhuza, niyo mpamvu ikoreshwa mubikorwa byinshi nkibiryo, amavuta yo kwisiga, nubwubatsi.

Muri minisiteri yumye, HPMC ikoreshwa nkimpinduka ya rheologiya, umukozi wo kubika amazi, hamwe nuwakwirakwiza. Ifite ingaruka zikomeye kumiterere no mumikorere ya drymix. Ubusanzwe HPMC yongewemo muke, mubisanzwe 0.1% kugeza 0.5% kuburemere bwibintu bya simaitima mumashanyarazi.

Imwe mumikorere yibanze ya HPMC muri drymix mortar ni ukunoza imikorere ya minisiteri. Ikora nka rheologiya ihindura mukwongera ubwiza bwuruvange, byoroshye gukorana nayo. Ibi ni ingenzi cyane kuri minisiteri yumye ikoreshwa mugushushanya cyangwa hasi, aho guhuza minisiteri ari ngombwa mugushiraho neza.

Ikindi gikorwa gikomeye cya HPMC muri minisiteri yumye nubushobozi bwayo bwo kugumana amazi. Iyo ivanze n'amazi, HPMC ikora ibintu bimeze nka gel ifata molekile y'amazi mumiterere yayo. Uyu mutungo ufasha kugumisha amavuta yumye, ningirakamaro mugukiza neza no gushiraho minisiteri. Ifasha kandi kugabanya kugabanuka no guturika kwa minisiteri.

HPMC ikora kandi nk'umukozi ukwirakwiza muri minisiteri yumye. Ifasha gucamo ibice by'uduce, bikaborohera kuvanga neza muri minisiteri. Uyu mutungo ni ingenzi cyane kuri minisiteri yumye irimo ibice byinshi, nkumucanga, sima, ninyongera zitandukanye.

Usibye iyi mirimo yibanze, HPMC irashobora kandi gutanga izindi nyungu kuri minisiteri yumye. Kurugero, irashobora kunoza ifatizo rya minisiteri kuri substrate, ningirakamaro mubisabwa nko gushiraho tile. Irashobora kandi kunoza imiterere ya minisiteri, bigatuma idakunda gucika no kumeneka mukibazo.

Mugihe uhitamo HPMC kugirango ikoreshwe muri minisiteri yumye, ibintu byinshi bigomba kwitabwaho. Icy'ingenzi muri ibyo bintu ni ubwiza bwa HPMC. Ubukonje bwa HPMC buzagena urwego rwo kubyimba no gufata amazi atanga kuri minisiteri. Ibindi bintu bigomba kwitabwaho harimo pH ya HPMC, urwego rwo gusimbuza (DS), nubunini bwayo.

PH ya HPMC ni ngombwa kuko irashobora guhindura igihe cyo gushiraho minisiteri. Niba pH iri hejuru cyane cyangwa hasi cyane, irashobora kugira ingaruka kumiti ibaho mugihe cyo gukira, biganisha kubibazo nko kugabanya imbaraga cyangwa kugabanuka kugabanuka.

DS ya HPMC ni igipimo cyerekana umubare wa hydroxypropyl na methyl zifatanije nu mugongo wa selile. DS yo hejuru isobanura ko hydroxypropyl na methyl matsinda menshi ahari, bikavamo amazi menshi kandi ashonga HPMC. DS yo hepfo isobanura ko hydroxypropyl nkeya na methyl matsinda bihari, bikavamo amazi make adashonga kandi HPMC itagaragara neza.

Ingano yubunini bwa HPMC irashobora kandi guhindura imikorere yayo muri minisiteri yumye. Ingano nini yingirakamaro irashobora gutuma HPMC ikwirakwizwa mu buryo butaringaniye muri minisiteri, mugihe ingano ntoya ishobora kuvamo guhuriza hamwe no guhuriza hamwe kwa HPMC.

Mugusoza, HPMC ninyongera yingenzi muri minisiteri yumye. Itanga inyungu zitandukanye, zirimo kunoza imikorere, gufata amazi, no gukwirakwiza ibice.


Igihe cyo kohereza: Werurwe-16-2023
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