1.HPMCe arotsoe ka mofuta oa hang-hang le mofuta oa ho hasana ka potlako.
Mofuta oa ho hasana ka potlako oa HPMC o kentsoe tlhaku S, 'me glyoxal e tlameha ho eketsoa nakong ea ts'ebetso ea tlhahiso.
Mofuta oa hang-hang oa HPMC ha o kenye litlhaku, joalo ka "100000" e bolela "100000 viscosity.
2. Ka kapa ntle le S, litšobotsi li fapane
HPMC e jalang ka potlako e qhalana ka potlako ha e kopana le metsi a batang ebe e nyamela ka metsing. Ka nako ena, mokelikeli ha o na viscosity, hobane HPMC e qhalakanngoa feela metsing ntle le ho qhibiliha ha sebele. Kamora metsotso e ka bang peli, viscosity ea mokelikeli e ntse e eketseha butle-butle, e etsa "viscous" e hlakileng ea "Thick colloid".
Instant HPMC e ka qhalakanngoa ka potlako metsing a chesang a ka bang 70°C. Ha mocheso o theohela mocheso o itseng, viscosity e tla hlaha butle-butle ho fihlela ho thehoa li-viscous colloid tse hlakileng.
3.Ka kapa ntle le S, morero o fapane
Instant HPMC e ka sebelisoa feela ka putty powder le seretse. Ka sekhomaretsi sa metsi, pente le lihlahisoa tsa ho hlatsoa, ho tla ba le ts'ebetso ea lihlopha 'me e ke ke ea sebelisoa.
E qhalakantsoeng ka potlakoHPMCe na le mefuta e mengata ea lisebelisoa 'me e ka sebelisoa ka putty powder, seretse, sekhomaretsi sa metsi, pente le lihlahisoa tsa ho hlatsoa ntle le li-contraindications.
4.Mokhoa oa ho qhala
4-1. Nka palo e hlokahalang ea metsi a chesang, e kenye ka har'a setshelo 'me ue chese ka holimo ho 80 ° C,' me butle-butle u kenye sehlahisoa sena tlas'a ho sisinyeha butle. Selulose e phaphamala ka holim'a metsi qalong, empa butle-butle e qhalakanngoa ho etsa seretse se tšoanang. Tharollo e ne e pholile ha e ntse e hlohlelletsa.
4-2. Ntle le moo, futhumatsa 1/3 kapa 2/3 ea metsi a chesang ho feta 85 ° C, eketsa selulose ho fumana slurry ea metsi a chesang, ebe u eketsa palo e setseng ea metsi a batang, tsoela pele ho hlohlelletsa, 'me u pholile motsoako o hlahisoang.
4-3. Letlooeng la cellulose le batla le le ntle, 'me le teng e le likaroloana tse nyane ka har'a phofo e ts'oeroeng ka ho lekana, 'me e qhibiliha kapele ha e kopana le metsi ho etsa viscosity e hlokahalang.
4-4. Butle-butle le ka mokhoa o ts'oanang eketsa selulose mocheso oa kamore, 'me u tsoele pele ho hlohlelletsa ho fihlela tharollo e hlakileng e thehoa.
5.Ke lintlha life tse amang ho bolokoa ha metsi a hydroxypropyl methyl cellulose?
5-1. Cellulose ether HPMC homogeneity
HPMC e sebetsang ka ho lekana, methoxyl le hydroxypropoxyl li ajoa ka ho lekana, 'me sekhahla sa ho boloka metsi se holimo.
5-2. Cellulose ether HPMC mocheso oa mocheso oa gel
Ha mocheso oa gel o futhumatsang o phahame, sekhahla sa ho boloka metsi se phahame; ho seng joalo, sekhahla sa ho boloka metsi se ka tlase.
5-3. Cellulose Ether HPMC Viscosity
Ha viscosity ea HPMC e eketseha, tekanyo ea ho boloka metsi e boetse e eketseha; ha viscosity e fihla boemong bo itseng, ho eketseha ha tekanyo ea ho boloka metsi ho atisa ho ba bonolo.
6.Keketso ea palo ea cellulose ether HPMC
Boholo bo bongata ba cellulose etherHPMCe ekelitse, ho phahamisa sekhahla sa ho boloka metsi le ho ntlafatsa phello ea ho boloka metsi.
Boemong ba 0.25-0.6%, tekanyo ea ho boloka metsi e ile ea eketseha ka potlako ka ho eketseha ha chelete ea ho eketsa; ha palo ea tlatsetso e ntse e eketseha, mokhoa oa keketseho ea sekhahla sa ho boloka metsi o ile oa theoha.
Nako ea poso: Apr-26-2024