Hydroxypropyl methylcellulose (HPMC) imagwiritsidwa ntchito polymer cerlulose kwambiri zomwe zimagwiritsidwa ntchito kwambiri pomanga, mankhwala opangira mankhwala, chakudya, zokutira ndi minda ina. HPMC ili ndi chisungiko chabwino chamadzi, kukula, mawonekedwe a filimu ndi zinthu zokhazikika, ndipo ndende zake mwa njirayi imakhudza kusungidwa kwamadzi.
1. Mfundo zoyambira za HPMC Kusunga kwa HPMC
HPMC imapanga mawonekedwe a ma network atatu kudzera pachiwopsezo ndi kulumikizidwa kwa thupi pakati pa ma unyolo am'madzi mu madzi, zomwe zimatha kugwira bwino ndikusunga chinyezi. Madzi ake osungidwa amawonekera makamaka m'mbali zotsatirazi:
Magulu a ma adsorption: Magulu a hydroxyl pa HPMC Molecular Tyninyo ule amatha kupanga zomangira za hydrogen, kulumikizana ndi mamolekyulu amadzi, ndikumwa ndikusunga chinyontho.
Ma Ukuwoneka: HPMC imawonjezera mawidwe a yankho ndikuchepetsa madzimadzi amadzi, potero amachepetsa kuchepa ndi kulowa kwa madzi.
Kutha kwa makanema: HPMC imatha kupanga filimu yoteteza yoteteza kuti itchinjirize chinyezi.
2. Zotsatira za ndende pamadzi osungira a HPMC
Kusunga kwamadzi kwa HPMC kumagwirizana kwambiri ndi ndende yake, ndipo zotsatira zogwirizira zamadzi zimawonetsedwa pamitundu yosiyanasiyana.
2.1 wotsika pang'ono
Potsika kwambiri (nthawi zambiri pansipa 0.1%), mamolekyu a HPMC samapanga ma network okwanira atatu. Ngakhale pali mayamwidwe enaake ndi kukula kwa madzi, kusunga madzi ndi kochepa chifukwa cha kufooka kochepa. Pakadali pano, kusungidwa kwamadzi kwa njirayi kumatengera mphamvu yakuthupi yanyonizi.
2.2 Mitundu Yogwirizira
Pamene kuchuluka kwa HPMC kumawonjezeka pakati pa 0,1% ndi 2%, kulumikizana kwanthawiyo kumakulitsidwa komanso mawonekedwe okhazikika atatu okhazikika. Pakadali pano, mafayilo a yankho amawonjezeka kwambiri, omwe amawonjezera kuthekera kwamadzi ndi kusintha kwamadzi. HPMC Molekyulu imapanga netiweki yolumikizirana ndi kulumikizana, moyenera kuchepetsa kuyenda ndikusintha kwamadzi. Chifukwa chake, kuwongolera kwamadzi kwa HPMC kumasintha kwambiri pamlingo wa sing'anga.
2.3 Kuchuluka Kwambiri Kwambiri
Pa zoopsa zapamwamba (nthawi zambiri zoposa 2%), ma molekyulu a HPMC amapanga mawonekedwe owiritsa kwambiri, ndipo yankho limawonetseratu kwambiri ndipo ngakhale kumayandikira ku gel khumi. Mu boma lino, HPMC imatha kugwira ndikusunga chinyezi kwapamwamba kwambiri. Kukhazikika kwakukulu kwa hpmc kumawonjezera kuchuluka kwa madzi ndikuchepetsa madzi, kumachepetsa kugwiritsa ntchito bwino ntchito zomwe zimafunikira kusungidwa kwamadzi kwambiri.
3.. Kugwiritsa ntchito kwa HPMC ndende ndi kusungidwa kwamadzi
3.1 Gawo lomanga
Pomanga matope, HPMC imagwira ntchito yomanga pogwiritsa ntchito madzi, kuchepetsa madzi osowa madzi pomanga matope. HPMC imagwiritsidwa ntchito m'matope matope pa 0.1% mpaka 1.0%, mitundu yomwe imagwiritsa ntchito njira yosungirako madzi ndikuyigwiritsa ntchito.
3.2 Munda wa Plarmaceutical
M'mapiritsi opanga mankhwala, hpmc amagwiritsidwa ntchito ngati zodzitchinjiriza ndi piritsi kuti muchepetse zovuta za mankhwala osokoneza bongo mwa kuwongolera mamasulidwe amadzi. Kukhazikika kwa hpmc mu mankhwala omwe amapezeka m'ma 1% mpaka 5%, omwe amapereka chitetezo chamadzi koyenera komanso kuchiritsa kuti awonetsetse kuti kukhulupirika ndi kugwiritsa ntchito mankhwalawa.
3.3 Mzera wa Chakudya
M'makampani azakudya, HPMC imagwiritsidwa ntchito ngati thicker ndi stebilizer kusintha kapangidwe ndi madzi osungirako madzi. Mwachitsanzo, kuwonjezera kwa HPMC ku mkate kumatha kusintha madzi osungirako madzi komanso kufewa kwa mtanda, makamaka pamitundu pakati pa 0,2% ndi 1%.
4. Kukhazikitsa madzi kusungidwa ndi HPMC ndende
Kuthamangitsa a HPMC Kusunga kwamadzi koyenera kumafuna kuganizira zinthu zomwe zingafunikire kukhathamiritsa, motero, osagwirizana ndi njira yothetsera vutoli.
Kukhazikika kwa HPMC kumakhudzanso kwakukulu pamadzi osungidwa ndi yankho. Kukhazikika kotsika, kusungidwa kwamadzi ndi kochepa; Pakatikati, mawonekedwe okhazikika amapangidwa kuti akonze chitetezo chamadzi; Pazinthu zambiri, madzi ambiri amapezeka. Minda yosiyanasiyana yofunsira imakhala ndi zofunikira zosiyanasiyana kwa HPMC ndende, yomwe iyenera kusinthidwa molingana ndi zofunikira zenizeni kuti mukwaniritse bwino kwambiri madzi ndi kukonza.
Post Nthawi: Feb-17-2025