HPMC (hydroxyprusyl methylcellose), semakemikiki akakosha emakemikari, anoshandiswa zvakanyanya mune yakaoma-yakavhenganiswa dhaka. Basa rayo guru ndeyokuvandudza kudzokorora kwemvura kuita kweiyo motsi. Kuchengeta kwemvura kwekuita kune kukosha kwakakosha pakuita kwekuita kwemutumbi uye kwekupedzisira kwekuvaka. Kushandiswa kweHPMC mune yakaoma-yakavhenganiswa mongwe kunogona kuvandudza zvinovaka zvinovaka, kusanganisa simba, kusimba, kune nekuvandudza maitiro ekuvaka uye kugona kuvaka.
1. Zvekutanga zvivakwa uye zvinoshanda nheyo dzeHPMC
HPMC ndeye isiri-ionic cellulose ether neakanaka mvura solubility. Iyo inoumba mhinduro ye collodal mushure mekunyungudika mumvura, iyo inogona kusimudzira zvakanyanya iyo yekuchengetwa kwemvura yekuchengetwa kwemutya. Chivakwa charo chemvura chinobva mumvura-chinobvisa moleky chimiro cheHPMC. HydroxyPropyl uye methyl Subhts inopa iyo hydrophilikuity, ichibvumira kuti iite chinhu chinonamira pamberi pemamorekuru emvura, nekudaro achideredza kurasikirwa kwemvura. Panguva imwecheteyo, HPMC mamorekuru inoumba iyo network dhizaini kuburikidza neHydrogen Kubatanidza, iyo inoita basa mukugadzirisa unyoro mumutumbi. Iyi yakasarudzika yemakemikari chimiro inoita kuti ive yakanaka mvura-yekuchengetedza mumiriri mumotokari yakaoma-musanganiswa.
2. Mhedzisiro yeHPMC pane yekuchengetwa kwemvura yekuita kwekuomeswa kwemauto yakasanganiswa
(1) kuvandudza basa rekushanda
Kuchengeta kwemvura kweHPMC kunogona kuwedzera nguva yemvura mumvura mudhaka, kuita kuti durwe rikangoita kuti rirege kupererwa nemvura munzvimbo dzinopisa kana kuti dzichiramba ichiripo yekuvaka yekuvaka. Iyi yekuita mvura inobata yakanyanya kukosha pakuvaka kwekunze, kubatsira kuve nechokwadi chekusveta kwemutema panguva yekuisa kana kuisa nyore, zvichiita kuti zvive nyore kunyorera uye nhanho. Panguva imwecheteyo, kudzokorora kwemvura kwakanaka kunoderedza njodzi yekudzikisira uye kupaza kwakakonzerwa nekurasikirwa kwemvura uye kunovandudza kugadzikana uye kufanana kwekuvaka.
(2) kusimudzira kushamwaridzana simba
Unyoro muzvikamu-zvakavakirwa zvinhu zvakakosha kuThe Coment hydration maitiro. HPMC inovimbisa hydration yakakwana kuburikidza nekuchengetwa kwemvura kwayo, nekudaro inosimudzira simba rekubatanidza pakati pesimendi uye substrate. Kana mvura iri mudhaka yakarasika nekukurumidza, iyo simende haigoni kuzadzisa iyo hydration maitiro, ichikonzera kuderera kwesimba rekubatanidza. Kuwedzerwa kweHPMC zvinobudirira kunokwenenzvera iyo inonyorovera mudura uye inovimbisa maitiro ekusimbisa, nekudaro ichivandudza kuita kwekurongedza.
.
Kupererwa kwemvura kwemvura kunowanzo kukonzera shrinkage marara mudhaka, kukanganisa simba rose uye chitarisiko. HPMC inogona kuumba iyo firimu rine mvura mumutero, zvinobudirira kuderedza mwero wemvura mumvura mumutya, nekudaro kuderedza mukana wekudzikira uye kupaza. Mukuwedzera, mvura yakanaka yekuchengetwa inobatsira kuvandudza dentity yemutya, nokudaro ichivandudza midziyo yayo yekurwisa-uye inokanganisa mongororo yakanyanya kuva nenzvimbo dzine hutsinye dzakadai sekunyorova uye kutonhora.
3. Iyo huwandu hweHPMC yakawedzerwa uye zvayo zvinokuvadza zvinhu
Iyo yekuchengetwa kwemvura yekuita yeHPMC yakanyatsoenderana nehuwandu hunowedzerwa kune dhiri. Kazhinji kutaura, huwandu hweHPMC rakawedzerwa riri pakati pe0,1% uye 0.5%. Mari chaiyo inoda kugadziridzwa zvinoenderana nerudzi rwembudzi, etc. Naizvozvo, mune zvinoshanda zvinoshandiswa, iyo yakakodzera HPMC Dosage inoda kutsanangurwa zvichienderana nezvinodiwa zvehudyu uye mhedzisiro chaiyo.
Uye zvakare, iyo yekuchengetwa kwemvura yeHPMC ichakanganiswawo nehuremu hwayo hwemanyorerwe, degree rekutsiva, size saizi uye zvimwe zvinhu. Semuenzaniso, HPMC ine yakakura molecular huremu kazhinji ine mari yekuchengetwa kwemvura, asi iyo visikoka zvakare inowedzera zvinoenderana, inoda chiyero pakati pekushanda uye kuchengetwa kwemvura. Uye zvakare, iyo yekunyungudika yeHPMC ichakanganisawo mvura yekuchengeta mvura yerudzi, saka zvakakodzera kuti uve nechokwadi chekuti zvakanyungudika kana uchigadzirira dhaka rakaoma-rakavhenganiswa.
4. Kushandisa tarisiro uye kuvandudza HPMC
Semunhu ane hushamwari ane hushamwari mvura-yekuchengetedza mumiriri, HPMC ine upfu hwakakura kushandisa tarisiro. Sezvo maindasitiri ekuvaka emuindasitiri emhando yekuwedzera uye kugona kwekuwedzera kugona, HPMC iri kuwedzera kushandiswa mune yakaoma-musanganiswa moter. Mune ramangwana, tsvagiridzo paHPMC ichaenderera mberi nekutarisa pakuvandudza iyo yekuchengetwa kwemvura yekuita uye neushamwari hwezvakatipoteredza. Semuenzaniso, iyo yekuchengetwa kwemvura yeHPMC inogona kuwedzeredzwa kuburikidza neyemurusi akagadziriswa
Kushandiswa kweHPMC mune yakaoma-yakavhenganiswa-yakavhenganiswa zvakanyanya nekuchengetwa kwemvura kwekuita kwemutya, nekukasira kugadzirisa basa rekushanda, kusanganisa simba uye kusimba kwerukudzo rwemberi. Yayo yakasarudzika mvura yekuchengetedza haina kungoona maitiro akagadzikana wedura panguva yekuvakwa, asi zvakare zvinobudirira kunowedzera hupenyu hwebasa remutya. Nekuvandudzwa kweindasitiri yekuvaka, kushandiswa kweHPMC mune yakaoma yakavhenganiswa mongwe ichave yakawanda uye yakawanda yakawandisa.
Kutumira Nguva: Kukadzi-15-2025