Hydroxypropylmethylcellulose le Surface treatment HPMC

Hydroxypropylmethylcellulose(HPMC) ke polymer e thehiloeng ho cellulose e sebelisoang haholo indastering ea meriana, ea lijo le ea litlolo. Ke phofo e tšoeu kapa e tšoeu e qhibilihang ka metsing 'me e etsa tharollo e hlakileng, e hlakileng. HPMC e sebelisoa e le motenya, emulsifier, le stabilizer lihlahisoa tse fapaneng. E boetse e sebelisoa e le moemeli oa ho roala bakeng sa matlapa le li-capsules.

Phekolo ea bokaholimo ba HPMC e kenyelletsa ho fetola thepa ea bokaholimo ba polymer ho ntlafatsa ts'ebetso ea eona. Kalafo ea bokaholimo e ka ntlafatsa ho khomarela, ho kolobisa, le ho qhalana ha HPMC. E ka boela ea ntlafatsa ho tsamaellana ha HPMC le metsoako e meng ha ho etsoa.

Mekhoa e meng e tloaelehileng ea kalafo ea holim'a HPMC e kenyelletsa:

1. Etherification: Sena se kenyelletsa ho sebetsana le HPMC ka alkylating agent ho hlahisa lihlopha tse eketsehileng tsa hydrophobic holim'a polymer.

2. Cross-linking: Sena se kenyelletsa ho hlahisa li-cross-link pakeng tsa limolek'hule tsa HPMC ho eketsa matla le botsitso ba polymer.

3. Acetylation: Sena se kenyelletsa ho hlahisa lihlopha tsa acetyl holim'a HPMC ho eketsa ho qhibiliha ha eona le botsitso.

4. Sulfonation: Sena se kenyelletsa ho hlahisa lihlopha tsa sulfonic acid holim'a HPMC ho ntlafatsa ho qhibiliha ha eona le ho qhalana ha metsi.

Ka kakaretso, phekolo ea holim'a HPMC e ka ntlafatsa ts'ebetso ea eona 'me ea etsa hore e tšoanelehe bakeng sa mefuta e mengata ea likopo.