HPMC (Hydroxypropyl Methylcellulose) imhando ye cellulose ether isingashandisike zvakanyanya mumishonga, chikafu, kuvaka uye zvizoro. Mhando dzakasiyana dzeHPMC dzinonyanya kurongwa zvichienderana nechimiro chadzo chemakemikari, hunhu hwadzo, viscosity, mwero wekutsiva uye mashandisirwo akasiyana.
1. Maumbirwo emakemikari uye mwero wekutsiva
Maumbirwo emamorekuru eHPMC ane mapoka ehydroxyl ari pa cellulose chain anotsiviwa nemapoka emethoxy nehydroxypropoxy. Hunhu hwepanyama nehwemakemikari eHPMC hunosiyana zvichienderana nehuwandu hwekutsiviwa kwemapoka emethoxy nehydroxypropoxy. Hurefu hwekutsiviwa hunokanganisa zvakananga kunyungudika, kugadzikana kwekupisa uye kushanda kwepamusoro peHPMC. Zvikuru:
HPMC ine methoxy yakawanda inowanzoratidza tembiricha yepamusoro yekupisa, izvo zvinoita kuti ive yakakodzera kushandiswa pamishonga inodzivirira tembiricha senge mishonga inoburitswa nemutemo.
HPMC ine huwandu hwakawanda hwehydroxypropoxy ine mvura inonyungudika zviri nani, uye kunyungudika kwayo hakunyanyi kukanganiswa nekupisa, zvichiita kuti ikodzere kushandiswa munzvimbo dzinotonhora.
2. Giredhi rekusviba
Kusviba ndechimwe chezvinhu zvakakosha zvinoratidza giredhi reHPMC. HPMC ine kusviba kwakasiyana-siyana, kubva pamasentimita mashoma kusvika kumakumi ezviuru emasentimita. Kusviba kunokanganisa kushandiswa kwayo mumashandisirwo akasiyana-siyana:
HPMC ine viscosity yakaderera (yakadai se10-100 centipoise): Iyi mhando yeHPMC inonyanya kushandiswa muzvinhu zvinoda viscosity yakaderera uye fluidity yakawanda, zvakaita se firimu coating, tablet adhesives, nezvimwewo. Inogona kupa simba rekubatanidza pasina kukanganisa fluidity yemushonga.
Kusviba kwepakati nepakati kweHPMC (senge 100-1000 centipoise): Inowanzoshandiswa muzvikafu, zvizoro uye mune mamwe magadzirirwo emishonga, inogona kushanda sechinokora uye kuvandudza magadzirirwo uye kugadzikana kwechigadzirwa.
Kusviba kwakanyanya kweHPMC (senge pamusoro pe1000 centipoise): Rudzi urwu rweHPMC runonyanya kushandiswa muzvinhu zvinoda kusviba kwakanyanya, zvakaita seglue, manamatisi nezvinhu zvekuvaka. Zvinopa kugona kwakanaka kwekukora nekumisa.
3. Hunhu hwemuviri
Hunhu hweHPMC, hwakadai sekunyungudika, tembiricha ye gelation, uye kugona kunyudza mvura, zvinosiyanawo zvichienderana nerudzi rwayo:
Kunyungudika: Mazhinji eHPMC anonyungudika zvakanaka mumvura inotonhora, asi kunyungudika kunoderera sezvo huwandu hwemethoxy huchiwedzera. Mamwe marudzi eHPMC anogonawo kunyungudika muzvinhu zvinonyungudika zveorganic zvinoshandiswa mumaindasitiri chaiwo.
Kupisa kweGelation: Kupisa kweGelation kweHPMC mumvura inoyerera kunosiyana zvichienderana nerudzi uye huwandu hwezvinhu zvinotsiva. Kazhinji, HPMC ine methoxy yakawanda inowanzogadzira majeli pakupisa kwakanyanya, nepo HPMC ine hydroxypropoxy yakawanda ichiratidza kupisa kwakaderera kwegelation.
Kusanyorova: HPMC haina kunyorova zvakanyanya, kunyanya ine magiredhi akawanda anotsiva. Izvi zvinoita kuti ive yakanaka munzvimbo dzinoda kusimba kwehunyoro.
4. Nzvimbo dzekushandisa
Nekuti mhando dzakasiyana dzeHPMC dzine hunhu hwakasiyana hwemuviri nehwemakemikari, mashandisirwo adzo muminda yakasiyana siyana akasiyanawo:
Indasitiri yeMishonga: HPMC inowanzoshandiswa mukugadzira mapiritsi, kugadzira mishonga inosunungura mishonga kwenguva refu, zvinonamira, uye zvinosimbisa. HPMC yemhando yemishonga inofanirwa kusangana nezvinodiwa zvemishonga, zvakaita seUnited States Pharmacopoeia (USP), European Pharmacopoeia (EP), nezvimwewo. Mhando dzakasiyana dzeHPMC dzinogona kushandiswa kugadzirisa mwero wekuburitswa kwemishonga uye kugadzikana kwayo.
Indasitiri yezvekudya: HPMC inoshandiswa semuchina wekuomesa, wekubatanidza, wekusimbisa muviri uye wekugadzira firimu. HPMC yemhando yezvekudya inowanzo fanirwa kunge isina chepfu, isina kuravira, isina hwema, uye inofanirwa kutevedzera mitemo yekuwedzera chikafu, senge yeUS Food and Drug Administration (FDA) neEuropean Food Safety Authority (EFSA).
Indasitiri yekuvaka: HPMC inonyanya kushandiswa muzvinhu zvakagadzirwa nesimende, zvigadzirwa zvegypsum uye machira ekuputira kuti akobvu, achengetedze mvura, aise mafuta uye awedzere kunaka. HPMC yemhando dzakasiyana dze viscosity inogona kukanganisa mashandiro ezvigadzirwa zvekuvaka uye mashandiro echigadzirwa chekupedzisira.
5. Mitemo yemhando yepamusoro
Mhando dzakasiyana dzeHPMC dzinoenderanawo nemitemo yemhando dzakasiyana:
HPMC yemhando yemishonga: inofanira kusangana nezvinodiwa zve pharmacopoeia, zvakaita seUSP, EP, nezvimwewo. Maitiro ayo ekugadzira uye zvinodiwa zvekudzora mhando zvakakwirira kuti ive nechokwadi chekuti yakachengeteka uye inoshanda mukugadzira mishonga.
HPMC yemhando yezvekudya: Inofanira kutevedzera mitemo yakakodzera yezvekuwedzera zvekudya kuti ive nechokwadi chekuti yakachengeteka muchikafu. Nyika dzakasiyana nenzvimbo dzinogona kunge dziine zvirevo zvakasiyana zveHPMC yemhando yezvekudya.
HPMC yemhando yeindasitiri: HPMC inoshandiswa mukuvaka, kuputira uye mune dzimwe nzvimbo haifanirwe kutevedzera mitemo yezvekudya kana mishonga, asi ichiri kufanira kuzadzisa mitemo yeindasitiri inoenderana, senge mitemo yeISO.
6. Kuchengetedzeka nekuchengetedzwa kwezvakatipoteredza
HPMC yemhando dzakasiyana-siyana inosiyanawo pakuchengetedzeka uye kuchengetedzwa kwezvakatipoterera. HPMC yemhando yemishonga neyemhando yechikafu inowanzoongororwa zvakasimba kuti ive nechokwadi chekuti haina njodzi kumuviri wemunhu. HPMC yemhando yeindasitiri, kune rumwe rutivi, inonyanya kutarisisa kuchengetedzwa kwayo kwezvakatipoterera uye kuora kwayo panguva yekushandiswa kuderedza kukanganisa zvakatipoteredza.
Kusiyana kuripo pakati pemhando dzakasiyana dzeHPMC kunonyanya kuoneka muchimiro chemakemikari, viscosity, hunhu hwemuviri, nzvimbo dzekushandisa, mwero wemhando uye kuchengetedzeka. Zvichienderana nezvinodiwa zvekushandisa, kusarudza mhando chaiyo yeHPMC kunogona kuvandudza mashandiro uye mhando yechigadzirwa. Pakutenga HPMC, zvinhu izvi zvinofanirwa kutariswa zvizere kuti zvive nechokwadi chekuti chigadzirwa chinoshanda uye chinoshanda.
Nguva yekutumira: Nyamavhuvhu-20-2024