Focus on Cellulose ethers

Tšebeliso ea hydroxypropyl methylcellulose HPMC

1. Sepheo sa mantlha sa hydroxypropyl methyl cellulose (HPMC) ke sefe?

HPMC e sebelisoa haholo linthong tsa kaho, liphahlo, lirekere tsa maiketsetso, lirafshoa, meriana, lijo, masela, temo, litlolo, koae le liindasteri tse ling.HPMC e ka aroloa ka sehlopha sa kaho, kereiti ea lijo le kereiti ea bongaka ho latela morero oa eona.Hona joale, lihlahisoa tse ngata tsa malapeng ke tsa boemo ba kaho.Sebakeng sa kaho, phofo ea putty e sebelisoa ka bongata, hoo e ka bang 90% e sebelisetsoa putty powder, 'me e setseng e sebelisetsoa seretse sa samente le sekhomaretsi.

2. Ho na le mefuta e 'maloa ea hydroxypropyl methyl cellulose (HPMC).Phapano ke efe lipakeng tsa tšebeliso ea tsona?

HPMC ka aroloa ka mofuta hang-hang le hot-qhibiliha mofuta.Lihlahisoa tsa mofuta oa hang-hang li qhalakanngoa ka potlako metsing a batang 'me li nyamela ka metsing.Ka nako ena, mokelikeli ha o na viscosity, hobane HPMC e qhalakanngoa feela metsing ntle le ho qhibiliha ha sebele.Hoo e ka bang metsotso e 2, viscosity ea mokelikeli e ile ea eketseha butle-butle, ea etsa colloid e hlakileng ea viscous.Sehlahisoa se chesang se chesang, ha se kopana le metsi a batang, se ka qhalana ka potlako metsing a chesang 'me sa nyamela metsing a chesang.Ha mocheso o theohela mocheso o itseng, viscosity e bonahala butle-butle ho fihlela ho thehoa li-viscous colloid tse hlakileng.Mofuta oa ho qhibiliha o chesang o ka sebelisoa feela ka phofo ea putty le seretse.Ka sekhomaretsing sa metsi le pente, clumping e etsahala mme e ke ke ea sebelisoa.Mofuta oa hang-hang o na le mefuta e mengata e fapaneng ea lits'ebetso.E ka sebelisoa ka putty phofo le seretse, hammoho le sekhomaretsi sa metsi le pente.Ha ho na contraindication.

3. Mekhoa ea ho qhibiliha ea hydroxypropyl methylcellulose HPMC ke efe?

Mokhoa oa ho tlosa metsi a chesang: Kaha HPMC ha e qhale metsing a chesang, HPMC e ka qhalakanngoa ka mokhoa o ts'oanang metsing a chesang qalong, ebe e qhibiliha ka potlako nakong ea pholileng.Mekhoa e 'meli e tloaelehileng e hlalosoa ka tsela e latelang:

1).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.qhala HPMC ho lokisetsa seretse sa metsi a chesang;ebe o eketsa palo e setseng ea metsi a batang ho metsi a chesang Ka slurry, pholile motsoako ka mor'a ho susumetsa.

Mokhoa oa ho kopanya phofo: kopanya phofo ea HPMC le lisebelisoa tse ling tse ngata tsa phofo, kopanya ka botlalo le blender, ebe u eketsa metsi ho qhibiliha, ebe HPMC e ka qhibiliha ka nako ena ntle le ho kopanya le ho kopanya, hobane sekhutlo se seng le se seng se senyenyane, ho na le hanyenyane feela. ea HPMC Phofo e tla qhibiliha hang-hang ha e kopana le metsi.-Putty phofo le baetsi ba seretse ba sebelisa mokhoa ona.[Hydroxypropyl methyl cellulose (HPMC) e sebelisoa e le ntho e thibelang metsi le e bolokang metsi seretseng sa putty powder.

Kenya palo e hlokahalang ea metsi a chesang ka har'a sets'oants'o 'me ue chese ho fihlela ho 70°C.Butle-butle eketsa hydroxypropyl methylcellulose ka ho sisinyeha butle, qala HPMC e phaphametse holim'a metsi, 'me butle-butle u thehe seretse,' me u pholisoe slurry ka ho sisinyeha.


Nako ea poso: Nov-16-2021
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