Mefuta e fapaneng ea HPMC

Hydroxypropyl Methylcellulose (HPMC) e fumaneha ka limaraka tse fapaneng, e 'ngoe le e' ngoe e etselitsoe ho fihlela litlhoko tse ikhethileng tsa ts'ebeliso ho latela lintlha tse kang viscosity, boima ba limolek'hule, degree ea substitution, le thepa e 'ngoe. Limaraka tse ling tse tloaelehileng tsa HPMC ke tsena:

1. Mephato e Tloaelehileng:

• Low Viscosity (LV): Ka tloaelo e sebelisoa lits'ebetsong moo ho hlokahalang viscosity e tlase le hydration e potlakileng, joalo ka lirekere tsa motsoako o omileng, likhomaretsi tsa lithaele le metsoako e kopaneng.
• Medium Viscosity (MV): E loketse mefuta e mengata ea lits'ebetso, ho kenyeletsoa litsamaiso tsa ho kenella ka ntle, metsoako ea ho ikemela, le lihlahisoa tse thehiloeng ho gypsum.
• High Viscosity (HV): E sebelisoa lits'ebetsong tse thata moo ho hlokahalang ho boloka metsi a mangata le thepa e teteaneng, joalo ka EIFS (Exterior Insulation and Finish Systems), lirafshoa tse teteaneng, le li-adhesives tse khethehileng.

2. Mephato e Ikgethileng:

• Delayed Hydration: E etselitsoe ho liehisa hydration ea HPMC mefuteng e omileng ea motsoako, e lumellang ts'ebetso e ntlafetseng le nako e atolositsoeng e bulehileng. Hangata e sebelisoa ka sekhomaretsi sa lithaele tse thehiloeng ho samente le li-plaster.
• Quick Hydration: E etselitsoe ho phalla ka potlako le ho hasana ka metsing, ho fana ka ho teteka ka potlako le ho ntlafatsa ho hanyetsa ha sag. E loketse lits'ebetso tse hlokang lisebelisoa tsa ho seta kapele, joalo ka lirekere tse lokisoang ka potlako le liphahlo tse folisang ka potlako.
• Sebaka se Fetotsoeng: Limaraka tse fetotsoeng holimo tsa HPMC li fana ka tšebelisano e ntlafalitsoeng le lisebelisoa tse ling le thepa e ntlafalitsoeng ea phallo mecheng ea metsi. Hangata li sebelisoa ha ho etsoa lihlahisoa tse nang le li-filler tse phahameng kapa li-pigment content, hammoho le litlolo tse khethehileng le lipente.

3. Mephato e Tloaelehileng:

• Meetso e Ikemetseng: Bahlahisi ba bang ba fana ka litlhophiso tsa tloaelo tsa HPMC ho fihlela litlhoko tse ikhethileng tsa bareki, joalo ka thepa e ntlafalitsoeng ea rheological, ho boloka metsi ho ntlafalitsoeng, kapa ho khomarela ho ntlafalitsoeng. Limaraka tsena tse tloaelehileng li ntlafatsoa ka mekhoa ea beng ba matlo 'me li ka fapana ho latela maemo a kopo le ts'ebetso.

4. Mephato ea Pharmaceutical:

• USP/NF Kereiti: E lumellana le litekanyetso tsa United States Pharmacopeia/National Formulary (USP/NF) bakeng sa tšebeliso ea meriana. Limaraka tsena li sebelisoa e le li-excipients mefuteng ea litekanyo tse tiileng tsa molomo, litlhare tsa tokollo tse laoloang, le litlhare tsa topical.
• Kereiti ea EP: E lumellana le litekanyetso tsa European Pharmacopoeia (EP) bakeng sa lits'ebetso tsa meriana. Li sebelisoa lits'ebetsong tse ts'oanang le limaraka tsa USP/NF empa li kanna tsa ba le liphapang tse nyane mabapi le litlhaloso le litlhoko tsa taolo.

5. Mephato ea Lijo:

• Kereiti ea Lijo: E etselitsoe ho sebelisoa lits'ebetsong tsa lijo le lino, moo HPMC e sebetsang e le setei, se tsitsisa, kapa se etsa li-gelling. Likarolo tsena li lumellana le melaoana ea polokeho ea lijo 'me li ka ba le bohloeki le litekanyetso tse khethehileng tse behiloeng ke balaoli ba tsamaiso.

6. Likereiti tsa Cosmetic:

• Cosmetic Grade: E etselitsoe ho sebelisoa tlhokomelong ea motho le lihlahisoa tsa litlolo, ho kenyeletsoa litlolo, litlolo, li-shampoo le litlolo tsa litlolo. Limaraka tsena li etselitsoe ho kopana le litekanyetso tsa indasteri ea litlolo bakeng sa polokeho, bohloeki le ts'ebetso.