IHydroxypropyl methylcellulose cishe ayincibiliki ku-ethanol ne-acetone. Isixazululo se-aqueous sizinzile kakhulu ekamelweni lokushisa futhi singakwazi i-gel ekushiseni okuphezulu. Iningi le-hydroxypropyl methylcellulose emakethe manje ingeyamanzi abandayo (amanzi okushisa kwegumbi, amanzi ompompi) ohlobo olusheshayo. I-HPMC yamanzi abandayo esheshayo izoba lula futhi iphephe ukusetshenziswa. I-HPMC idinga ukwengezwa ngokuqondile kwisisombululo samanzi abandayo ngemva kwemizuzu eyishumi kuya kwamashumi ayisishiyagalolunye ukuze ishube kancane kancane. Uma imodeli ekhethekile, idinga ukugqugquzelwa ngamanzi ashisayo ukuze ihlakazeke, bese ithululelwa emanzini abandayo ukuze ichitheke ngemva kokupholisa.
Uma imikhiqizo ye-HPMC yengezwa ngokuqondile emanzini, izobumbana bese incibilika, kodwa lokhu kuhlakazeka kuhamba kancane kakhulu futhi kunzima. Kutuswa izindlela ezintathu ezilandelayo zokuhlakaza, futhi abasebenzisi bangakhetha indlela elula kakhulu ngokuya ngesimo sokusetshenziswa (ikakhulukazi eye-HPMC yamanzi abandayo esheshayo).
Indlela yokuhlakaza kanye nezinyathelo zokuphepha ze-HPMC
1. Indlela yamanzi abandayo: Uma idinga ukungezwa ngokuqondile kwisisombululo esinamanzi esishisayo esivamile, kungcono ukusebenzisa uhlobo lokuhlakazwa kwamanzi abandayo. Ngemuva kokwengeza i-viscosity, ukuvumelana kuzokhula kancane kancane kumfuneko yenkomba.
2. Indlela yokuxuba i-Powder: I-HPMC powder kanye nenani elifanayo noma ngaphezulu kwezinye izingxenye ze-powdery zihlakazwa ngokugcwele ngokuxuba okomile, futhi ngemva kokwengeza amanzi ukuze ahlakaze, i-HPMC ingancibilika ngalesi sikhathi futhi ngeke isaba i-agglomerate. Eqinisweni, kungakhathaliseki ukuthi hlobo luni lwe-hydroxypropyl methylcellulose. Ingomiswa ihlanganiswe ngqo kwezinye izinto.
3. Indlela yokumanzisa i-solvent ye-Organic: I-HPMC ihlakazekile ngaphambili noma imanziswe ngezincibilikisi eziphilayo, njenge-ethanol, i-ethylene glycol noma uwoyela, bese incibilika emanzini, futhi i-HPMC ingancibilika kahle.
Ngesikhathi senqubo yokuhlakazwa, uma kukhona i-agglomeration, izosongwa. Lokhu kuwumphumela wokuguquguquka okungalingani, ngakho-ke kuyadingeka ukusheshisa isivinini esishukumisayo. Uma kukhona ama-bubbles ekuhlakazweni, kungenxa yomoya obangelwa ukuguquguquka okungalingani, futhi isisombululo sivunyelwe ukuma amahora angu-2- 12 (isikhathi esithile sincike ekuvumelaneni kwesixazululo) noma ukuhlanza, ukucindezela nezinye izindlela. ukususa, ukwengeza inani elifanele le-defoamer nakho kungaqeda lesi simo. Ukwengeza inani elifanele le-defoamer nakho kungaqeda lesi simo.
Njengoba i-hydroxypropyl methylcellulose isetshenziswa ezimbonini ezahlukahlukene, kubaluleke kakhulu ukwazi indlela yokuhlakaza i-hydroxypropyl methylcellulose ukuze isetshenziswe ngendlela efanele. Ngaphezu kwalokho, abasebenzisi bayakhunjuzwa ukuthi banake ukuvikelwa kwelanga, ukuvikela imvula nokuvikela umswakama ngesikhathi sokusebenzisa, bagweme ukukhanya okuqondile, futhi bagcine endaweni evalekile neyomile. Gwema ukuthintana nemithombo yokuthungela futhi ugweme ukwakheka kothuli oluningi ezindaweni ezivaliwe ukuze uvimbele izingozi zokuqhuma.
Isikhathi sokuthumela: Jun-20-2023