HPMC, kapena Hydroxypropyl Methylcellulose, si surfactant m'lingaliro lolimba la mawuwa. Ma Surfactants ndi mamolekyu omwe ali ndi mapeto a hydrophilic (okonda madzi) ndi hydrophobic (othamangitsa madzi), ndipo amagwiritsidwa ntchito kuchepetsa kuthamanga kwapakati pakati pa madzi awiri osasunthika kapena pakati pa madzi ndi olimba. Ma Surfactants amagwiritsidwa ntchito m'mafakitale osiyanasiyana, kuphatikiza zotsukira, zosamalira anthu, ndi mankhwala, pakati pa ena.

Kumbali ina, HPMC ndi polima yopangidwa ndi cellulose yomwe imagwiritsidwa ntchito m'njira zosiyanasiyana, kuphatikiza mankhwala, chakudya, ndi zinthu zosamalira anthu, pakati pa ena. HPMC amapangidwa ndi mankhwala kusintha mapadi, amene ndi polima zachilengedwe zopezeka zomera. Makamaka, HPMC imapangidwa polowetsa magulu ena a hydroxyl mu cellulose ndi magulu a methyl kapena hydroxypropyl. Polima yomwe imachokera imakhala yosungunuka m'madzi ndipo imatha kugwiritsidwa ntchito ngati thickener, binder, emulsifier, ndi stabilizer, pakati pa ntchito zina.

Ngakhale kuti siwogwiritsa ntchito, HPMC imatha kuwonetsa zinthu zofananira ndi zinthu zina. Mwachitsanzo, HPMC angagwiritsidwe ntchito kukhazikika emulsions, amene ndi osakaniza awiri immiscible zamadzimadzi, popanga wosanjikiza zoteteza kuzungulira madontho a madzi amodzi mu madzi ena. Chosanjikiza ichi chingalepheretse madontho kuti asagwirizane ndi kupatukana ndi osakaniza onse. Mwanjira iyi, HPMC imatha kugwira ntchito ngati emulsifier, yomwe ndi mtundu wa surfactant.

Komanso, HPMC angagwiritsidwe ntchito kuchepetsa mavuto padziko madzi, amene ndi katundu surfactants. Mwachitsanzo, HPMC angagwiritsidwe ntchito ngati ❖ kuyanika pa malo olimba kuti iwo kwambiri hydrophilic, amene akhoza kuwonjezera katundu wawo wetting. Pakugwiritsa ntchito, HPMC imatha kuchepetsa kuthamanga kwamadzi pamtunda, zomwe zimatha kuwonjezera kumamatira kwamadzi kapena zolimba pamwamba.

Ponseponse, ngakhale kuti HPMC sichirikidwe mozama kwambiri, imatha kuwonetsa zinthu zofananira ndi zinthu zina. HPMC ndi zosunthika polima kuti angagwiritsidwe ntchito zosiyanasiyana mafakitale, ndi katundu wake wapadera kupanga izo chofunika pophika mu formulations ambiri.