I-hydroxypropyl methylcellulose cishe ayincibiliki ku-ethanol ne-acetone ephelele. Isixazululo samanzi sizinzile kakhulu ekushiseni kwegumbi futhi singayigaya uma sishisa kakhulu. Iningi le-hydroxypropyl methylcellulose emakethe manje lingelamanzi abandayo (amanzi okushisa kwegumbi, amanzi ompompi) uhlobo olusheshayo. I-HPMC yamanzi abandayo ngokushesha izoba lula futhi iphephe kakhulu ukuyisebenzisa. I-HPMC idinga ukungezwa ngqo kusisombululo samanzi abandayo ngemva kwemizuzu eyishumi kuya kwamashumi ayisishiyagalolunye ukuze iqine kancane kancane. Uma kuyimodeli ekhethekile, idinga ukuvunguzwa ngamanzi ashisayo ukuze ihlakazeke, bese ithululelwa emanzini abandayo ukuze incibilike ngemva kokupholisa.
Uma imikhiqizo ye-HPMC ingezwa ngqo emanzini, izojiya bese incibilika, kodwa lokhu kuncibilika kuhamba kancane futhi kunzima. Kunconywa izindlela ezintathu ezilandelayo zokuncibilika, futhi abasebenzisi bangakhetha indlela elula kakhulu ngokuya ngesimo sokusetshenziswa (ikakhulukazi i-HPMC yamanzi abandayo ngokushesha).
Indlela yokuncibilikisa kanye nezinyathelo zokuphepha ze-HPMC
1. Indlela yamanzi abandayo: Uma kudingeka ifakwe ngqo esixazululweni samanzi esijwayelekile sokushisa, kungcono ukusebenzisa uhlobo lokusabalala kwamanzi abandayo. Ngemva kokwengeza i-viscosity, ukuvumelana kuzokhula kancane kancane kuye esidingweni senkomba.
2. Indlela yokuxuba i-powder: I-HPMC powder kanye nenani elifanayo noma ngaphezulu lezinye izingxenye ze-powder zihlakazeka ngokuphelele ngokuxuba okomile, futhi ngemva kokufaka amanzi ukuze kuncibilike, i-HPMC ingancibilika ngalesi sikhathi futhi ngeke isahlangana. Eqinisweni, kungakhathaliseki ukuthi hlobo luni lwe-hydroxypropyl methylcellulose. Ingaxutshwa yomile ngqo kwezinye izinto.
3. Indlela yokumanzisa i-organic solvent: I-HPMC ihlakazwa noma imanziswe kusengaphambili nge-organic solvents, njenge-ethanol, i-ethylene glycol noma uwoyela, bese incibilikiswa emanzini, kanti i-HPMC nayo ingancibilikiswa kahle.
Ngesikhathi senqubo yokuncibilikisa, uma kukhona ukuhlangana, kuzosongwa. Lokhu kungumphumela wokuxuba okungalingani, ngakho-ke kuyadingeka ukusheshisa isivinini sokuxuba. Uma kukhona amabhamuza ekuncibilikeni, kungenxa yomoya obangelwa ukuxuba okungalingani, futhi isixazululo sivunyelwe ukuma amahora angu-2-12 (isikhathi esithile sincike ekuqineni kwesisombululo) noma ukuhlanza nge-vacuum, ukucindezela kanye nezinye izindlela zokususa, ukwengeza inani elifanele le-defoamer nakho kungasusa lesi simo. Ukwengeza inani elifanele le-defoamer nakho kungasusa lesi simo.
Njengoba i-hydroxypropyl methylcellulose isetshenziswa ezimbonini ezahlukene, kubaluleke kakhulu ukwazi indlela yokuncibilikisa i-hydroxypropyl methylcellulose ukuze isetshenziswe ngendlela efanele. Ngaphezu kwalokho, abasebenzisi bayakhunjuzwa ukuthi banake ukuvikelwa kwelanga, ukuvikelwa kwemvula kanye nokuvikelwa komswakama ngesikhathi sokusetshenziswa, bagweme ukukhanya okuqondile, futhi bagcine endaweni evaliwe neyomile. Gwema ukuthintana nemithombo yokushisa futhi ugweme ukwakheka kothuli oluningi ezindaweni ezivaliwe ukuze uvimbele izingozi zokuqhuma.
Isikhathi sokuthunyelwe: Juni-20-2023