Indlela yokuchithwa kwe-Hydroxypropyl methylcellulose (HPMC):

Uma imikhiqizo ye-hydroxypropyl methylcellulose (HPMC) yengezwa ngokuqondile emanzini, izobumbana bese incibilika, kodwa lokhu kuncibilika kuhamba kancane kakhulu futhi kunzima. Kunezindlela ezintathu zokuhlakaza eziphakanyisiwe ngezansi, futhi abasebenzisi bangakhetha indlela elula kakhulu ngokuya ngokusetshenziswa kwabo:

1. Indlela yamanzi ashisayo: Njengoba i-hydroxypropyl methylcellulose (HPMC) ingancibiliki emanzini ashisayo, isigaba sokuqala se-hydroxypropyl methylcellulose (HPMC) singahlakazwa ngokulinganayo emanzini ashisayo, bese kuthi lapho sesipholisiwe, izindlela ezintathu ezijwayelekile zichazwe ngokuthi kuyalandela:

1). Faka inani elidingekayo lamanzi ashisayo esitsheni bese ushisa kuze kufike ku-70°C. Kancane kancane yengeza i-hydroxypropyl methylcellulose (HPMC) ngaphansi kokunyakaziswa kancane, i-hydroxypropyl methylcellulose (HPMC) iqala ukuntanta phezu kwamanzi, bese kancane kancane yakhe i-slurry, ipholise i-slurry ngaphansi kokunyakaziswa.

2). Shisisa i-1/3 noma 2/3 (inani elidingekayo) lamanzi esitsheni bese usishisa ku-70°C. Ngokwendlela ye-1), hlakaza i-hydroxypropyl methylcellulose (HPMC) ukulungiselela udaka lwamanzi ashisayo; Bese wengeza inani elisele lamanzi abandayo noma amanzi eqhwa esitsheni, bese wengeza amanzi ashisayo e-hydroxypropyl methylcellulose (HPMC) emanzini abandayo, bese ugoqa, bese upholisa ingxube.

3). Faka i-1/3 noma 2/3 yenani elidingekayo lamanzi esitsheni bese usishisa ku-70°C. Ngokwendlela ye-1), hlakaza i-hydroxypropyl methylcellulose (HPMC) ukuze ulungiselele udaka lwamanzi ashisayo; Inani elisele lamanzi abandayo noma e-ice libe selifakwa emanzini ashisayo e-slurry futhi ingxube iyapholiswa ngemva kokugubha.

2. Indlela yokuxuba impushana: izinhlayiya ze-hydroxypropyl methylcellulose (HPMC) kanye nenani elilinganayo noma elikhulu lezinye izithako eziyimpuphu zihlakazwa ngokugcwele ngokuxuba okomile, bese zihlakazwa emanzini, bese i-hydroxypropyl methylcellulose Base cellulose (HPMC) ingancibilika ngaphandle kokuhlanganiswa. . 3. Indlela yokumanzisa i-organic solvent: i-pre-disperse noma i-hydroxypropyl methylcellulose emanzi (HPMC) enezinyibilikisi zemvelo ezifana ne-ethanol, i-ethylene glycol noma uwoyela, bese uyincibilikisa emanzini. Ngalesi sikhathi, i-hydroxypropyl methylcellulose (HPMC) ingancibilika kahle.