MetHyl Cellulose (MC) uye HydroxyPropyl methylcellose (HPMC) vari vese cellulose vanobva uye vanoshandiswa zvakanyanya mumishonga yemishonga, chikafu, zvekuvakisa uye mamwe minda. Kunyangwe ivo vari vese vakatorwa kubva kune zvakasikwa mheremalose uye vane zviitiko zvakafanana mune zvimwe zvekushandisa, vane misiyano yakakosha mumakemikari chimiro, zvivakwa zvemuviri, minda yekushandisa uye maitiro anoshanda.
1. Chemical chimiro uye maitiro ekugadzirira
MetHyl Cellulose (Mc): Methyl Celler inogadzirwa nekutsiva chikamu kana ese eiyo hydroxyl mapoka (-oh) ye cellulose ine mapoka mapoka (-och₃). Kunyanya, mapoka ehydroxyl mu cellulose anoita ne methylating reagents (senge methyl chloride) pasi peAlkaline mamiriro ekugadzira methylose. Nekuda kwemadhigirii akasiyana ekutsiva, mc inogona kuve neyakajairika solubility uye viscosity.
HydroxyPropyl methylcellose (HPMC): Hpmc) Kugadziriswa kweHPMC kunosanganisira maviri-nhanho maitiro: Kutanga kuita methylation maitiro uyezve hydroxpremypress reaction. Nekuda kweiyi mbiri kutsiva, izvo zvivakwa zveHPMC zvinonyanya kuoma uye zvakasiyana.
2. Solubility uye zvivakwa zvemuviri
Solubility yeMC: Methylcellose ine yakanaka solubility mumvura inotonhora, asi haina kunyungudika mumvura inopisa. Mhinduro yayo ichagadzira phenomenon painenge ichipiswa, iyo inoita kuti MC ive neakasarudzika application kukosha pasi pemamwe mamiriro ezvinhu, akadai sekushandisa kwayo mune zvekuvaka.
Solubility yeHPMC: Kusiyana, HPMC inonyura mumvura inotonhora uye inopisa, uye mhinduro dzayo dzine mavhitokisi akapusa. Mukuwedzera, HPMC inoratidzira kugadzikana kwakanaka mumvura mhinduro uye haina hanya nekuchinja mune pH kukosha, saka inoshandiswa zvakanyanya mune maindasitiri emishonga uye ekudya.
3. Nzvimbo dzekushandisa
Kushandiswa kweMethylcellose: Nekuda kweiyo yekukanda majecha yeMC, inowanzoshandiswa semvura muindasitiri, etc.GySum Muindasitiri yechechi, mc dzimwe nguva inoshandiswa seyekugadzira mumirapiro emapiritsi uye mafirimu-ekugadzira mafirimu emakapu emakapu.
Zvikumbiro zve hydroxyprupyl methylcellose: HPMC inonyanya kuwanda pane mc mune akawanda maindasitiri nekuda kwekutadza kwayo uye kugadzikana. Semuenzaniso, HPMC inoshandiswa zvakanyanya muindasitiri yemishonga yekugadzira mahwendefa ekudzora uye mahwendefa eCapsule, uye zvakare sedhizaini uye lubricant kune funghalmic gadziriro. Muzvivakwa zvekuvaka, HPMC inowanzoshandiswa seyakakwenenzverwa uye yemvura-yekuchengetedza mumiririri wemauto, putties uye anomhara. Mukuwedzera, HPMC inoshandiswawo seanoti, emulsifieri uye stabilizer mune indasitiri yechikafu.
4. Inoshanda maitiro uye misiyano yekuita
Unyanzvi hunhu hweMC: Chinhu chakasarudzika che methylcellose ndiro rayo rayo rinoputika renyama, izvo zvinoita kuti zvinyatsobudirira mukushandisa zvinoda kugadzikana. Mukuwedzera, mhinduro yemvura yaMc ine imwe nhanho yechiitiko uye nzvimbo yemusoro, iyo inobatsira mune mamwe maindasitiri maitiro.
Unyanzvi hunhu hweHPMC: HydroxyprEpropyl methylcellose hunoratidzwa nekudzorwa kwaro kwekugadzirisa uye kugadzirisa zvisizvo, pamwe nekugadzikana kwavo kwekushisa nePH. Aya maitiro anoita HPMC kuratidzira kwakanyanya kushanduka uye kugadzikana mune dzakasiyana siyana application. Mukuwedzera, HPMC's Biocomputer uye isina kujairika ita kuti zvinonyanya kukosha mune maindasitiri ekurapa uye ekudya.
5. Kudzivirirwa kwezvakatipoteredza uye kuchengeteka
Zvemamiriro ekunze ane hushamwari hwezvivakwa zveMC uye HPMC: Sezvo cellulose Derivatives, MC uye HPMC IZVI ZVINOGONESESESA ZVINHU ZVINOGONESESA UYE KUTI UVHURE PESI. Uye zvakare, zvese zvinogadzirwa zvisiri-zvine chepfu, zvakachengeteka zvakanyanya uye zvakachengeteka zvakanyanya, zvichiita kuti vakwanise kushandisa munzvimbo dzine vanhu vakanyanya kusangana, sekudya nemushonga.
Kunyangwe methylcellose (mc) uye hydroxyprichchylsellose (HPMC) vane zvakafanana (yavo solubility, minda yemuviri, maitiro ekushandisa uye maitiro anoshanda nekuda kwezvinhu zvakasiyana. Kune misiyano yakakosha. MC Kunyanya kupfuura mune zvekushandisa izvo zvinoda iyo yekukomba majecha ejecha, sekuzvivakwa; Ipo HPMC ichishandiswa zvakanyanya mumishonga yemishonga, chikafu uye dzekuvaka nekuvaka nekuda kwekushushikana kwayo kwekushamisika, kusimba uye kusiri chinhu. Kunzwisisa misiyano pakati pevaviri vanogona kukubatsira kuti usarudze zvakakodzera zvinyorwa zvekushandisa chairo.
Kutumira Nguva: Kukadzi-17-2025