HPMC (Hydroxypropyl Methyl Cellulose) inowanzo shandiswa cellulose derivative iyo inoshandiswa zvakanyanya munzvimbo dzakawanda dzeindasitiri, kunyanya mukudzora viscosity uye kukora zvivakwa. Nekuda kwechimiro chayo chemakemikari uye chimiro chemuviri, HPMC inogona kunyatso kuvandudza viscosity, kugadzikana uye rheological zvimiro zvezvigadzirwa zveindasitiri. Nokudaro, yakashandiswa zvakanyanya mukuputira, zvinhu zvekuvaka, zvinodhaka, zvizoro, zvokudya uye mamwe minda.
Basic maitiro eHPMC
HPMC chinhu chepolymer chakagadzirwa kubva kumakemikari akagadziridzwa echisikigo cellulose. Yayo molecular cheni ine hydrophilic mapoka uye hydrophobic mapoka, saka ine yakanaka solubility yemvura uye organic solvent kuenderana. Inonyungudika mumvura inotonhora kuti iite inoonekera kana translucent viscous solution. Zvinhu zvakakosha zveHPMC zvinosanganisira:
Yakanakisa thickening zvivakwa: HPMC inogona zvakanyanya kuwedzera viscosity yemhinduro pane yakaderera yekumisikidza, ichipa yepamusoro thickening mhedzisiro. Izvi zvinoita kuti ive chinhu chakakosha muzvigadzirwa zvemaindasitiri senge zvekuvaka uye machira kuti uvandudze mashandisirwo echigadzirwa.
Yakanaka viscosity control: HPMC inogona kuwana chaiyo viscosity control nekugadzirisa iyo molecular huremu uye dhigirii rekutsiva (senge methoxy uye hydroxypropyl substitution rates) kusangana nezvinodiwa zveakasiyana mashandisirwo mamiriro. Semuyenzaniso, muindasitiri yekupotera, HPMC ine akasiyana viscosities inogona kupa akasiyana mazinga uye kushanda kwekupfeka.
Yakanakisa rheological gadziriso: Iyo rheological zvimiro zveHPMC zvinogona kuchinja nekuchinja mushear rate. Izvi zvinoreva kuti kana yakamira, inoumba chimiro chakanyanya che viscous, uye viscosity inodzikira kana masimba ekuveura aiswa (sekukurudzira kana kupfapfaidza), zvichiita kuti chigadzirwa chive nyore kushandisa. Pakati pezvimwe zvekuzvimisikidza pasi, hunhu hweHPMC hwakanyanya kukosha.
Yakanaka biocompatibility uye isiri-chepfu: HPMC inotorwa kubva kune yakasikwa cellulose, ine biocompatibility yakanaka, haina chepfu, isingagumbure, uye inosangana nezvinodiwa zvekuchengetedza nharaunda. Nokudaro, ine kuchengetedzwa kwepamusoro zvinodiwa muzvizoro, zvinodhaka, zvokudya, nezvimwewo. Inoshandiswawo zvakanyanya muminda yepamusoro.
Kuomesa michina yeHPMC mune zvigadzirwa zvemaindasitiri
Iko kukora zvimiro zveHPMC zvinonyanya kukonzerwa nechimiro chayo chemorekuru uye kusangana kwemamorekuru mumhinduro. Kana HPMC yanyungudutswa mumvura kana zvimwe zvinonyungudutsa, maketani ayo macromolecular anopetuka uye ogadzira mabhondi akasimba ehydrogen uye van der Waals masimba ane mamorekuru ekunyungudutsa, zvichibva zvawedzera viscosity yehurongwa. Pamusoro pezvo, iyo matatu-dimensional network dhizaini yakaumbwa neHPMC mumhinduro ndiyo zvakare kiyi yekukora kwayo kuita. Iwo mashetani emaketani muHPMC mhinduro anopindirana kuti agadzire network network, iyo inoderedza fluidity yemushonga uye nekudaro inoratidza yakakwira viscosity.
Kune akasiyana maficha ekushandisa, iyo viscosity yeHPMC inogona kugadziriswa nenzira dzinotevera:
Kugadziriswa kwehuremu hwemamorekuru: Iyo viscosity yeHPMC inowanzoenderana nehuremu hwayo. Iyo yakakura iyo molecular uremu, iyo yakakwirira viscosity yemhinduro. Naizvozvo, nekusarudza zvigadzirwa zveHPMC zvine huremu hwakasiyana hwemamorekuru, mhinduro dzine maviscosities akasiyana dzinogona kuwanikwa kuzadzisa zvinodiwa zveakasiyana maindasitiri zvigadzirwa.
Kudzora kwedhigirii rekutsiva: Iko kukora mhedzisiro yeHPMC zvakare yakabatana zvakanyanya nedhigirii rekutsiva. Iyo yakakwirira iyo dhigirii yekutsiva, iyo yakasimba iyo hydrophilicity uye zviri nani iyo thickening maitiro. Nekudzora dhigirii rekutsiviwa kweHPMC's methoxy uye hydroxypropyl mapoka, viscosity yayo zvimiro zvinogona kunyatsodzorwa.
Mhedzisiro yekugadziriswa kwekugadzirisa: Iko kusungirirwa kweHPMC mumhinduro kunobatawo zvakananga viscosity yayo. Kazhinji kutaura, iyo yakakwira iyo yakagadziriswa mhinduro, iyo yakakura viscosity. Naizvozvo, nekugadzirisa kusungwa kweHPMC, kunyatso kudzora kwemhinduro viscosity kunogona kuwanikwa.
Nzvimbo dzekushandisa uye kukora mhedzisiro yeHPMC
Zvishandiso zvekuvaka: HPMC inowanzo shandiswa seyakakora uye viscosity regulator mumadhaka ane simende, anonamira ematairi, uye yekuzvimisira pasi zvinhu muzvinhu zvekuvakisa. Kuwedzera kwayo kunowedzera kuchengetwa kwemvura kwezvinhu izvi, inovandudza kushanda kwavo, uye inodzivirira kutsemuka kana kupera. Kunyanya munzvimbo dzepamusoro-tembiricha, HPMC inogona kuwedzera zvakanyanya nguva yekuvhura yezvinhu uye kuwedzera kushanda kwayo.
Coatings uye pendi: Muindasitiri yekupfekedza, HPMC inoshandiswa seyakakora uye inomisa mumiriri kuti iwedzere kunamatira kwemajasi uye kugadzirisa iwo mwero uye sag kuramba panguva yekupfeka. Panguva imwecheteyo, HPMC inogona kubatsira pendi kuchengetedza yunifomu kugovera, kudzivirira kugadzika kwepigment, uye kuita kuti firimu rekuputira rive rakapfava uye riwedzere yunifomu.
Zvinodhaka uye Zvizoro: Mukugadzirira kwemishonga, HPMC inowanzoshandiswa kudzora kuburitswa kwezvinodhaka, semidziyo yekupfekedza piritsi uye magomba ecapsule. Yayo yakanaka thickening maitiro anobatsira kuvandudza kugadzikana kwemushonga uye kuwedzera nguva yemaitiro emushonga. Muzvizoro, HPMC inoshandiswa zvakanyanya mumafuta ekuzora, makirimu, maconditioner uye zvimwe zvigadzirwa kuwedzera viscosity uye kugadzikana kwechigadzirwa uku uchiwedzera silky kunzwa uye kunyorova mhedzisiro kana yaiswa.
Indasitiri yeChikafu: HPMC inowanzoshandiswa muindasitiri yezvekudya seyakakora uye inodzikamisa, kunyanya mune zvigadzirwa zvemukaka, condiments, jellies uye zvinwiwa. Iyo isiri-chepfu uye isina kunhuhwirira zvimiro inoita kuti ive yakachengeteka uye yakavimbika thickening agent inovandudza magadzirirwo uye muromo wezvikafu.
HPMC yave chinhu chakakosha chinoshanda mune zvemazuva ano zvigadzirwa zvemaindasitiri nekuda kwekunaka kwayo kukora kuita uye viscosity control kugona. Nekugadzirisa huremu hwayo hwemamorekuru, dhigirii rekutsiva uye kugadzirisa kugadzirisa, HPMC inogona kusangana nezvinodiwa viscosity zvezvakasiyana zvigadzirwa zvemaindasitiri. Panguva imwecheteyo, iyo isiri-chepfu, yakachengeteka uye ine hushamwari zvimiro zvakare yakaita kuti ishandiswe zvakanyanya mukudya, mishonga uye zvizorwa uye mamwe minda. Mune ramangwana, nekuenderera mberi kwekufambira mberi kwesainzi uye tekinoroji, mamiriro ekushandiswa kweHPMC achange akawedzera, uye zvakanakira mukudzora viscosity uye kuita kwakakora zvichawongororwa nekushandiswa.
Nguva yekutumira: Sep-25-2024