Hydroxypropyl methylcelluloseHPMCni selile itari ionic selile yakozwe muri polymer naturel selile selile binyuze murukurikirane rwo gutunganya imiti. Ni ifu yera itagira impumuro nziza, itaryoshye kandi idafite uburozi bwabyimbye mumazi akonje kugirango kibonerwe neza cyangwa cyoroshye cyane. Ifite imiterere yo kubyimba, guhambira, gutatanya, kwigana, gukora firime, guhagarika, adsorbing, gell, gukora-hejuru, kugumana ubushuhe hamwe na colloid ikingira. Hydroxypropyl methylcellulose, methylcellulose irashobora gukoreshwa mubikoresho byubaka, inganda zitwikiriye, resinike yubukorikori, inganda zubutaka, ubuvuzi, ibiryo, imyenda, ubuhinzi, imiti ya buri munsi nizindi nganda.
Ingaruka yo gufata amazi nihame rya hydroxypropyl methylcellulose HPMC
Cellulose ether HPMC igira uruhare runini mu gufata amazi no kubyimba muri sima ya sima na gypsumu ishingiye kuri slurry, ishobora kunoza neza ubumwe hamwe no kurwanya sag.
Ibintu nkubushyuhe bwikirere, ubushyuhe numuvuduko wumuyaga bizagira ingaruka kumuvuduko wamazi mumazi ya sima nibicuruzwa bishingiye kuri gypsumu. Kubwibyo, mubihe bitandukanye, hariho itandukaniro mubikorwa byo gufata amazi yibicuruzwa hamwe na HPMC yongeyeho. Mu bwubatsi bwihariye, ingaruka zo gufata amazi ya slurry zirashobora guhinduka mukwongera cyangwa kugabanya umubare wa HPMC wongeyeho. Kugumana amazi ya methyl selulose ether ku bushyuhe bwo hejuru ni ikimenyetso cyingenzi cyo gutandukanya ubwiza bwa methyl selulose ether. Ibicuruzwa byiza bya HPMC birashobora gukemura neza ikibazo cyo gufata amazi munsi yubushyuhe bwinshi. Mu bihe by'ubushyuhe bwinshi, cyane cyane ahantu hashyushye kandi humye no kubaka ibice bito ku ruhande rw'izuba, HPMC yo mu rwego rwo hejuru irasabwa kunoza uburyo bwo gufata neza amazi. HPMC yo mu rwego rwo hejuru, ifite uburinganire bwiza cyane, imikorere yayo ya hydroxypropoxy ikwirakwizwa mu buryo bwuzuye ku murongo wa selile ya selile, ishobora kuzamura ubushobozi bwa atome ya ogisijeni kuri hydroxyl na ether ihuza amazi kugira ngo ihuze imigozi ya hydrogène, ku buryo amazi yubusa ahinduka amazi aboshye, kugirango agenzure neza ihinduka ryamazi yatewe nubushyuhe bwo hejuru kandi bigere kumazi menshi.
Cellulose yo mu rwego rwohejuru HPMC irashobora gukwirakwizwa kimwe kandi neza mubutaka bwa sima na gypsumu, kandi ikubiyemo ibice byose bikomeye, ikanakora firime itose, kandi ubuhehere buri munsi bukarekurwa buhoro buhoro mugihe kirekire. Imyitwarire ya hydrasiyo yibintu ibaho, bityo igahuza imbaraga zo guhuza imbaraga nimbaraga zo kwikuramo ibintu. Kubwibyo, mugihe cyubushyuhe bwo hejuru bwubaka, kugirango tugere ku ngaruka zo gufata amazi, birakenewe kongeramo ibicuruzwa byiza bya HPMC ukurikije formulaire, bitabaye ibyo, hazabaho hydrated idahagije, kugabanya imbaraga, kumeneka, gutobora no kugwa biterwa no gukama vuba. Byongera kandi ingorane zo kubaka kubakozi. Mugihe ubushyuhe bugabanutse, umubare wiyongereye wa HPMC urashobora kugabanuka buhoro buhoro, kandi ingaruka zimwe zo gufata amazi zirashobora kugerwaho.
Kugumana amazi ya hydroxypropyl methylcellulose HPMC ubwayo ikunze kwibasirwa nimpamvu zikurikira:
1. Cellulose ether HPMC ubutinganyi
HPMC yakiriye kimwe ifite gukwirakwiza imitekerereze ya hydroxypropoxy hamwe no gufata amazi menshi.
2. Cellulose ether HPMC ubushyuhe bwa gel
Iyo ubushyuhe bwa gel ubushyuhe buri hejuru, niko igipimo cyo gufata amazi kiri hejuru; bitabaye ibyo, gabanya igipimo cyo gufata amazi.
3. Cellulose ether HPMC ibishishwa
Iyo ubwiza bwa HPMC bwiyongereye, igipimo cyo gufata amazi nacyo cyiyongera; iyo viscosity igeze kurwego runaka, kwiyongera k'igipimo cyo gufata amazi bikunda kuba byoroheje.
4. Cellulose ether HPMC yongeyeho
Ninshi wongeyeho selile ya ether HPMC, niko igipimo cyo gufata amazi ningaruka nziza yo gufata amazi. Mu ntera ya 0.25-0,6%, igipimo cyo gufata amazi cyiyongera vuba hamwe no kwiyongera kwinshi; iyo amafaranga yiyongereye arushijeho kwiyongera, kwiyongera kwikigero cyo gufata amazi bigenda gahoro.
Igihe cyo kohereza: Ukwakira-20-2022