Hydroxypropyl methylcellulose (HPMC, Hydroxypropyl Methylcellulose) ndi chowonjezera chamitundumitundu chomwe chimagwiritsidwa ntchito kwambiri popanga zinthu zosamalira anthu, makamaka chifukwa cha kunyowa kwake. Monga ogula amasiku ano amasamalira kwambiri thanzi la khungu ndi chitonthozo, ntchito yonyowa yakhala imodzi mwazinthu zofunika kwambiri pakhungu. HPMC ndi polima yopangidwa ndi cellulose yomwe imathandizira kwambiri mphamvu zonyowa zazinthu zosamalira anthu.
1.Physicochemical katundu ndi moisturizing limagwirira HPMC
HPMC ndi polima yosungunuka m'madzi yochokera ku cellulose yokhala ndi mawonekedwe apadera amagulu a hydrophilic (monga magulu a hydroxyl ndi methyl) ndi magulu a hydrophobic (monga magulu a propoxy). Izi amphiphilic chikhalidwe amalola HPMC kuyamwa ndi loko mu chinyezi, potero kupanga zoteteza filimu pamwamba pa khungu ndi kuchepetsa evaporation madzi. HPMC imatha kupanga ma gels owoneka bwino komanso okhazikika ndipo imawonetsa kusungunuka kwabwino kwambiri komanso kupanga mafilimu mumitundu yosiyanasiyana ya kutentha.
2. Mphamvu yonyowa ya HPMC imawonekera makamaka muzinthu izi:
Kuthekera kotsekera madzi: Monga wopangira filimu, HPMC imatha kupanga filimu yofananira, yopumira pakhungu kuti ipewe kutuluka kwamadzi. Chotchinga chakuthupichi sichimangotseka bwino chinyontho mkati mwa khungu, komanso chimalepheretsa mpweya wouma wakunja kuti usakokolole khungu, potero kumatalikitsa kunyowa.
Limbikitsani kapangidwe kazinthu ndi ductility: Mapangidwe a polima a HPMC amapangitsa kuti ikhale yolimba kwambiri, yomwe imatha kusintha kukhathamiritsa komanso kumva kwazinthu zosamalira anthu. Kukhuthala kumeneku kumapangitsa kuti mankhwalawa aphimbe bwino kwambiri pakhungu akamagwiritsidwa ntchito, ndikupangitsa kuti chinyezi chisasungidwe komanso kusunga. Panthawi imodzimodziyo, imapangitsanso kukhazikika kwa mankhwalawa ndikuletsa chinyezi ndi zinthu zogwira ntchito zomwe zili mkati mwake kuti zisalekanitse kapena kukhazikika.
Kutulutsa kosinthidwa kwa zosakaniza zogwira ntchito: HPMC imatha kuwongolera kuchuluka kwa zinthu zomwe zimagwira ntchito kudzera pa netiweki yake ya gel, kuwonetsetsa kuti zosakanizazi zitha kupitiliza kugwira ntchito pakhungu kwa nthawi yayitali. Katundu wotulutsa nthawiyi amathandizira kupereka mpweya wokhalitsa, makamaka ngati khungu limakhala louma kwa nthawi yayitali.
3. Kugwiritsa ntchito HPMC muzinthu zosiyanasiyana zosamalira anthu
Creams ndi lotions
HPMC ndi wamba thickener ndi filimu kupanga wothandizira mu moisturizing zonona ndi mafuta odzola. Sikuti amangopereka mankhwalawo kuti agwirizane, komanso amawongolera zinthu zake zowonongeka. Maselo apadera a HPMC amathandiza kuti khungu lizitha kuyamwa bwino ndi chinyezi, kupangitsa khungu kukhala lofewa komanso losapaka mafuta mukatha kugwiritsa ntchito. Nthawi yomweyo, mawonekedwe ake opangira filimu amathandizira kuchepetsa kutayika kwa chinyezi pakhungu ndikuwonjezera mphamvu yotseka chinyezi.
Kuyeretsa katundu
Mu mankhwala oyeretsera, HPMC sikuti amangogwira ntchito ngati thickening wothandizila kuthandiza kusintha kapangidwe, komanso amateteza khungu chotchinga chinyezi pamene kuyeretsa. Nthawi zonse, zinthu zoyeretsa zimakonda kuchititsa khungu kutaya mafuta achilengedwe ndi chinyezi chifukwa zimakhala ndi zotsukira. Komabe, kuwonjezera HPMC kumatha kuchedwetsa kutayika kwamadzi kumeneku ndikuletsa khungu kuti lisawume komanso lolimba pambuyo poyeretsa.
mankhwala oteteza dzuwa
Zopangira zodzitetezera ku dzuwa nthawi zambiri zimafunika kugwira ntchito pakhungu kwa nthawi yayitali, kotero kuti zonyowa ndizofunikira kwambiri. HPMC sikuti imangosintha mawonekedwe ndi kukhazikika kwa zinthu zoteteza ku dzuwa, komanso imathandizira kuchedwetsa kutuluka kwa madzi ndikusunga chinyezi pakhungu, potero kupewa kutayika kwa chinyezi chifukwa cha kukhudzidwa kwa ultraviolet ndi malo owuma.
Chigoba cha nkhope
HPMC imagwiritsidwa ntchito makamaka pakunyowetsa masks amaso. Chifukwa cha luso lake labwino kwambiri lopanga filimu komanso ma hydration, HPMC imatha kuthandizira maski amaso kupanga malo otsekedwa onyowa akagwiritsidwa ntchito kumaso, kulola kuti khungu lizitha kuyamwa bwino zakudya zomwe zili mumtunduwu. Zomwe zimatulutsidwa mosalekeza za HPMC zimatsimikiziranso kuti zosakaniza zomwe zimagwira zitha kutulutsidwa mosalekeza panthawi yakugwiritsa ntchito, ndikupangitsa kuti chigoba chikhale chonyowa.
mankhwala osamalira tsitsi
HPMC yawonetsanso zotsatira zabwino zonyowa pazogulitsa zosamalira tsitsi. Powonjezera HPMC ku zodzoladzola tsitsi, masks a tsitsi ndi zinthu zina, filimu yotetezera ikhoza kupangidwa pamwamba pa tsitsi, kuchepetsa kutaya kwa chinyezi ndikuwonjezera kusalala ndi kufewa kwa tsitsi. Kuphatikiza apo, HPMC imatha kusintha kapangidwe kazinthuzo, kupangitsa kuti ikhale yosavuta kufalitsa mofanana mukamagwiritsa ntchito.
4. Synergy pakati HPMC ndi zosakaniza zina moisturizing
HPMC nthawi zambiri ntchito molumikizana ndi zosakaniza zina moisturizing kupeza bwino moisturizing zotsatira. Mwachitsanzo, zosakaniza zapamwamba zonyowa monga sodium hyaluronate ndi glycerin zimaphatikizidwa ndi HPMC kuti khungu likhale ndi mphamvu komanso kutseka chinyezi kudzera mukupanga filimu ya HPMC. Kuphatikiza apo, HPMC ikagwiritsidwa ntchito limodzi ndi zosakaniza za polysaccharide kapena mapuloteni, imathanso kupereka zakudya zowonjezera komanso chitetezo kwa mankhwalawa.
Kuphatikizika kwa HPMC sikumangowonjezera kukhathamiritsa kwa mankhwalawa, komanso kumawonjezera kapangidwe kake, kamvekedwe ndi kukhazikika kwa mankhwalawa chifukwa chakukula kwake komanso kupanga filimu, kuwongolera kwambiri kuvomerezedwa kwake pakati pa ogula. Pamapangidwe a fomula, posintha kuchuluka kwa HPMC yowonjezeredwa komanso kuchuluka kwa zinthu zina, njira zokometsera zopangidwa mwaluso zitha kuperekedwa pamitundu yosiyanasiyana yakhungu ndi tsitsi.
5. Chitetezo ndi kukhazikika
Monga zodzikongoletsera zopangira zopangira, HPMC ili ndi biocompatibility yabwino komanso chitetezo. HPMC imatengedwa kuti ndi hypoallergenic ndipo ilibe mankhwala owopsa, ndikupangitsa kuti ikhale yoyenera kugwiritsidwa ntchito pamitundu yonse ya khungu, ngakhale khungu lodziwika bwino. Kugwiritsa ntchito kwa nthawi yayitali mankhwala okhala ndi HPMC sikungawononge khungu. Kuphatikiza apo, HPMC ili ndi kukhazikika kwamphamvu kwamankhwala ndi thupi ndipo imatha kupitiliza kugwira ntchito pa pH yayikulu komanso kutentha.
Kugwiritsa ntchito kwa HPMC muzinthu zosamalira anthu kwakopa chidwi chochulukirapo chifukwa chakuchita bwino kwambiri konyowa komanso magwiridwe antchito ena ambiri. Sikuti amangotseka chinyezi kudzera mukupanga filimu, komanso kumapangitsanso mapangidwe a mankhwala, ductility ndi bata, kulola kuti zinthu zosamalira munthu zikwaniritse bwino pakati pa chitonthozo ndi zotsatira zowonongeka. Ndi kupitilira kwatsopano komanso chitukuko cha zinthu zosamalira khungu, kugwiritsa ntchito kosiyanasiyana kwa HPMC kumapereka mwayi wochulukirapo kwa opanga ma formula ndi kubweretsa zopatsa thanzi komanso zopatsa mphamvu kwa ogula.
Nthawi yotumiza: Sep-26-2024