Mokhoa oa ho qhibiliha oa Hydroxypropyl methylcellulose (HPMC):

Ha lihlahisoa tsa hydroxypropyl methylcellulose (HPMC) li kenngoa ka ho toba metsing, li tla kopanya ebe li qhibiliha, empa ho qhibiliha hona ho lieha haholo ebile ho thata. Ho na le mekhoa e meraro e khothaletsoang ea ho qhala ka tlase, 'me basebelisi ba ka khetha mokhoa o bonolo ka ho fetisisa ho latela ts'ebeliso ea bona:

1. Mokhoa oa metsi a chesang: Kaha hydroxypropyl methylcellulose (HPMC) ha e qhale metsing a chesang, mohato oa pele oa hydroxypropyl methylcellulose (HPMC) o ka qhalakanngoa ka mokhoa o ts'oanang metsing a chesang, 'me ha o pholile, mekhoa e meraro e tloaelehileng e hlalosoa e le. e latela:

1). Kenya palo e hlokahalang ea metsi a chesang ka har'a sets'oants'o 'me ue chese ho isa ho 70°C. Butle-butle eketsa hydroxypropyl methylcellulose (HPMC) tlas'a ho sisinyeha butle, hydroxypropyl methylcellulose (HPMC) e qala ho phaphamala holim'a metsi, ebe butle-butle e etsa slurry, e pholile slurry tlas'a ho sisinyeha.

2). Chesa 1/3 kapa 2/3 (tekanyo e hlokehang) ea metsi ka har'a sets'oants'o ebe o se futhumatsa ho 70 ° C. Ho ea ka mokhoa oa 1), qhala hydroxypropyl methylcellulose (HPMC) ho lokisetsa slurry ea metsi a chesang; Ebe u eketsa palo e setseng ea metsi a batang kapa metsi a leqhoa ka har'a setshelo, ebe u eketsa metsi a chesang a hydroxypropyl methylcellulose (HPMC) a slurry ho metsi a batang, 'me u hlohlelletse, ebe o pholile motsoako.

3). Kenya 1/3 kapa 2/3 ea palo e hlokahalang ea metsi ka har'a sets'oants'o ebe o se futhumatsa ho 70 ° C. Ho ea ka mokhoa oa 1), qhala hydroxypropyl methylcellulose (HPMC) ho lokisetsa slurry ea metsi a chesang; Nako e setseng ea metsi a batang kapa a leqhoa e ntan'o kenngoa metsing a chesang a slurry 'me motsoako o pholile ka mor'a ho tsosoa.

2. Mokhoa oa ho kopanya phofo: likaroloana tsa phofo ea hydroxypropyl methylcellulose (HPMC) le palo e lekanang kapa e kholo ea metsoako e meng ea phofo e qhalakanngoa ka ho feletseng ka ho kopanya ho omileng, ebe e qhibiliha ka metsing, ebe hydroxypropyl methylcellulose Base cellulose (HPMC) e ka qhibiliha ntle le ho kopanya. . 3. Mokhoa oa ho kolobisa oa motsoako oa motsoako: pele o qhalakana kapa o metsi hydroxypropyl methylcellulose (HPMC) ka li-solvents tse kang ethanol, ethylene glycol kapa oli, ebe o li qhaqha ka metsing. Ka nako ena, hydroxypropyl methylcellulose (HPMC) le eona e ka qhaloa hantle.