Focus on Cellulose ethers

Ingabe uyayazi i-hydroxypropyl methylcellulose?

IHydroxypropyl methylcellulose isetshenziswa kabanzi embonini yezokwakha. Namuhla, ngizokwethula indlela yokuchithwa kwe-hydroxypropyl methylcellulose kanye nendlela yokwahlulela ikhwalithi ye-hydroxypropyl methylcellulose.

Indlela yokuncibilikisa i-hydroxypropyl methylcellulose:

Wonke amamodeli angangezwa kundaba ngokuxuba okomile;

Uma idinga ukungezwa ngqo kwisisombululo esinamanzi esishisayo esivamile, kungcono ukusebenzisa uhlobo lokuhlakazeka kwamanzi abandayo, futhi lungaqina phakathi kwemizuzu engu-10-90 ngemva kokwengeza;

Ngemva kokuhlanganisa nokusabalalisa ngamanzi ashisayo ohlobo oluvamile, engeza amanzi abandayo bese ugoqa ukuze uwahlakaze;

Uma kukhona i-agglomeration kanye ne-coating ngesikhathi sokuchithwa, kubangelwa ukugoqa okunganele noma ukungezwa okuqondile kwamanzi abandayo kumaphrofayili ajwayelekile. Ngalesi sikhathi, kufanele ishukunyiswe ngokushesha;

Uma ama-bubbles ekhiqizwa ngesikhathi sokuchithwa, angashiywa ukuze ame amahora angu-2-12 (anqunywe ngokuvumelana nokuvumelana kwesixazululo) noma asuswe ngokuphuma, ukucindezela, njll., futhi inani elifanele le-defoamer nalo lingangezwa.

Indlela yokwahlulela ikhwalithi ye-hydroxypropyl methylcellulose kalula nangendlela enembile

Ubumhlophe: Ngokusho kobumhlophe, akunakwenzeka ukunquma ukuthi i-HPMC ingasetshenziswa ngokujwayelekile, futhi uma ama-ejenti amhlophe engezwa enqubweni yokukhiqiza, izophinde ithinte ikhwalithi yayo. Nokho, imikhiqizo enobumhlophe obuhle ngokuvamile mihle.

Ukulunga: I-HPMC ivamise ukuba yi-80 mesh, 100 mesh, 120 mesh, inciphe kakhulu iba ngcono.

I-Transmittance: faka i-HPMC emanzini ukuze yakhe i-colloid esobala, futhi ubheke ukudluliselwa kwayo. Uma kukhulu ukudluliswa, izinto ezincane ezingancibiliki emanzini. Ngokuvamile, ukudluliselwa kungcono kuma-reactor aqondile nama-reactor avundlile. Kubi kakhulu kureactor eqondile, kodwa ayikwazi ukuchaza ukuthi ikhwalithi yomkhiqizo okhiqizwe i-reactor eqondile ingcono kunaleyo ye-reactor evundlile.

Amandla adonsela phansi athile: Ngokuvamile, ngenxa yokuqukethwe okuphezulu kwe-hydroxypropyl, umphumela wokugcina amanzi muhle.


Isikhathi sokuthumela: Nov-17-2022
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