I-HPMC noma i-Hydroxypropylm methylcellulose iyindawo esetshenziswayo esetshenziswa kakhulu kwizimboni ezahlukahlukene kufaka phakathi ama-Pharmaceuticals, izimonyo nokwakha. Nansi imibuzo ebuzwa njalo nge-HPMC:
Kuyini i-Hypromellose?
I-HPMC iyi-polymer yokwenziwa eyenziwe kusuka ku-cellulose, into yemvelo etholakala ezitshalweni. Kwenziwa ngokuguqula amakhemikhali nge-cellulose enamaqembu we-methyl kanye ne-hydroxypropyl ukudala i-powder enamanzi.
Yini i-HPMC esetshenziselwa yona?
I-HPMC isebenzisa okuningi ezimbonini ezahlukene. Embonini yezemithi, isetshenziswa njenge-binder, isikhungo kanye ne-emulsifier yamathebulethi, amaphilisi kanye namafutha. Embonini yezimonyo, isetshenziswa njenge-persener, emulsifier ne-stabilizer kukhilimu, ama-lotions nokwenza. Embonini yezokwakha, isetshenziswa njenge-binder, isikhungo kanye ne-ejenti yokugcina amanzi ku-usimende nodaka.
Ngabe ama-HPMC aphephile?
I-HPMC ngokuvamile ithathwa njengephephile futhi ayinobuthi. Isetshenziswa kabanzi kwizimboni zezemithi nezimonyo lapho ukuphepha nobumsulwa kubaluleke kakhulu. Kodwa-ke, njenganoma imuphi amakhemikhali, kubalulekile ukuphatha i-HPMC ngokunakekela bese ulandela izinyathelo zokuphepha ezifanele.
Ngabe i-HPMC biodegradable?
I-HPMC iyi-biodegradable futhi ingadilizwa ngezinqubo zemvelo ngokuhamba kwesikhathi. Kodwa-ke, isilinganiso se-biodegradation sincike ezicini ezahlukahlukene ezifana nokushisa, umswakama kanye nokuba khona kwama-microorganisms.
Ngabe i-HPMC ingasetshenziswa ekudleni?
I-HPMC ayivunyelwe ukusetshenziswa ekudleni kwamanye amazwe, kufaka phakathi i-United States. Kodwa-ke, kuvunywa njengokungezelelwa kokudla kwamanye amazwe anjengeJapan neChina. Isetshenziswa njengesikhudlwana kanye ne-stabilizer kokunye ukudla, njenge-ayisikhilimu nezimpahla ezibhakiwe.
Kwenziwa kanjani i-HPMC?
I-HPMC yenziwa ngokuguqula amakhemikhali i-cellulose, into yemvelo etholakala ezitshalweni. I-cellulose yelashwa okokuqala ngesisombululo se-alkali ukususa ukungcola futhi senze isebenze ngokwengeziwe. Kube sekuphendula ngengxube ye-methyl chloride ne-propelene oxide ukwakha i-HPMC.
Yini amamaki ahlukene we-HPMC?
Kunamabanga ambalwa we-HPMC, ngalinye linezakhiwo ezahlukahlukene kanye nezakhiwo. Amabanga asuselwa ezintweni ezifana nesisindo samangqamuzana, izinga lokufaka esikhundleni, kanye nokushisa kwe-gelation. Amabanga ahlukene we-HPMC asetshenziswa ezinhlelweni ezihlukile ezimbonini ezahlukene.
Ngabe i-HPMC ingahlanganiswa namanye amakhemikhali?
I-HPMC ingahlanganiswa namanye amakhemikhali ukukhiqiza izakhiwo nezimpawu ezihlukile. Imvamisa ihlanganiswe namanye ama-polymers afana ne-polyvinylpyrolidone (PVP) ne-polyethylene glycol (isikhonkwane) ukuthuthukisa izakhiwo zayo zokubopha nokuqina.
I-HPMC igcinwe kanjani?
I-HPMC kufanele igcinwe endaweni epholile, eyomile kude nomswakama nokukhanya kwelanga okuqondile. Kufanele igcinwe esitsheni somoya ukuvikela ukungcoliswa.
Yiziphi izinzuzo zokusebenzisa i-HPMC?
Izinzuzo zokusebenzisa i-HPMC zifaka phakathi ukuguquguquka kwayo, i-solubility yamanzi, kanye ne-biodergAdamabilibility. Futhi ayinangozi, izinzile, futhi iyahambisana namanye amakhemikhali amaningi. Ngokushintsha izinga lokufakwa esikhundleni kanye nesisindo se-molecular, izakhiwo zalo zingashintshwa kalula, zilenze zilungele izinhlelo ezahlukahlukene.
Isikhathi Sokuthumela: Jun-19-2023