HydroxyPropyl methylcellose (HPMC) iri polymer yakashandiswa zvakanyanya neyakajairika masisimendi akasiyana mumushonga, chikafu, cosmetics uye kuvaka. Mubvunzo wehydrophilikuti uye lipophicity yeHPMC inonyanya kuenderana nemakemikari ayo emakemikari uye ma molecular zvivakwa.
Chemical chimiro uye zvivakwa zveHPMC
HPMC ndeye isiri-ionic cellelose inobviswa yakaumbwa nekuunza hydroxyprosyl uye methyl mapoka mu cellulose moleky chimiro. Yayo molecular cheni ine hydrophilic hydroxyl (-OOOH) uye lipopic methyl (-ch3) uye hydroxypruppropyl (-ch2ch (oh) ch3) mapoka. Naizvozvo, kune vanhu vaviri, vese hydrophilic uye lipeilic, asi iyo hydrophilikuity isinganyanyo. Ichi chivakwa chinozvipa zvakanaka solubility, firimu-inoumba uye yakakora zvinhu, uye inogona kuumba yakagadzikana collodal kuparadzaniswa kwemukati uye organic sol sol.
Hydrophilicity yeHPMC
Nekuda kwehuwandu hukuru hwemapoka ehydroxyl muHPMC chimiro, cheni yayo yemanyorerwo ane hydrophilikupikira. Mumvura, HPMC inogona kuumba hydrogen zvisungo, zvichibvumira mamorekuru kuti vanyungure mumvura uye gadzira mhinduro yepamusoro-viscosity. Mukuwedzera, HPMC zvakare ine kuchengetwa kwemvura yakanakisa uye inoshandiswa zvakanyanya seyekadzi uye stabilizer mumushonga, chikafu uye cosmetics. Semuenzaniso, HPMC inogona kushandiswa seyekuburitswa-yakaburitswa mumiriri mukugadzirira kwemibvunzo yekunonoka kuburitsa zvinodhaka mumuviri uye nekuvandudza kugadzikana kwekushanda kwezvinodhaka.
Liphilipicity yeHPMC
Methyl uye hydroxypruspropyl mapoka muHPMC morekuru ane hydrophos; Mhedzisiro yayo inokonesa kusanganisa nezvimwe zvinhu zvemafuta zvikamu, izvo zvinokwazisa mari yekushandisa yeHPMC mumvura-mumvura (O / w) emulsions uye latexic. Mune mamwe emulsions kana kugadzirira kugadzirira, iyo lipopicity yeHPMC inobatsira kuumbwa system yakafanana neiyo hydrophobic zvinhu, nekudaro optimizing kugovera uye kugadzikana kwezvisikwa.
Kushandiswa kweHPMC
Kugadzirira kweMishonga: HPMC inowanzoshandiswa seyakavhurika-yekuburitswa mameseji mahwendefa, uchishandisa hydrophilipity uye firimu-kugadzira zvinhu kudzora huwandu hwezvinodhaka.
Indasitiri yezvokudya: Muchikafu, HPMC inoshandiswa seyakakwenenzverwa uye yemvura mari yekuwedzera kuti uwedzere hupenyu hwesheru yechikafu uye kuvandudza kuravira.
Zvivakwa zvekuvaka: HPMC's Water Solubility uye Kukakavara Kugadzirisa Ita Kuti Yenongedzo Yemutengo Wekuvaka Mukuvaka, Kuvandudza Kushanda uye Mvura Inobata Chinyorwa.
Cosmetics: Muzvigadzirwa zveganda zveganda, HPMC inogona kushandiswa seyemulsifier stabilizer. Nekuda kwehydrophilicity, inogona kuumba madzimba matrix kuchengetedza iyo moisturizizing mhedzisiro uye kuumbwa kwechigadzirwa.
HPMC ndeye Amphihlic Colymer zvinhu izvo zvese hydrophilic uye lipeilic, asi nekuti ine mapoka mazhinji ehydroxyl, inoratidzira hydrophilikuti yakasimba.
Kutumira Nguva: Kukadzi-15-2025