HydroxyPropyl methylcellose (HPMC) ndeyekuwanzoshandiswa-mvura-soluble cellulose inobviswa zvakanyanya kushandiswa mumisimo. Kugadzikana kwekumiswa kunoreva kugona kweiyo yakasimba masisitimu kuti irambe yakapararira yakaiswa mumvura yepakati kwenguva yakareba isina kukosha kana kushamisika. Izvo zvakasarudzika zvemuviri uye zvemakemikari zvivakwa zveHPMC zvinoita kuti zvive basa rakakosha mukuvandudza kugadzikana kwekumiswa.
Basic Prezilies yeHPMC
Zvimiro zvemuviri uye zvemakemikari
HPMC ndeyekuti inobviswa yakawanikwa nemaperembudzi methylation uye hydroxypruslation ye cellulose. Yayo moleky chimiro ine hydrophilic hydroxyl (-OOOH) uye hydrophobic methy (-och₃) uye hydroxyprupropyl mapoka, ayo anoiita mvura-inokwira-nyoro uye yakashanda. HPMC inogona kuumba mhinduro yemvura mumvura, uye yayo viscosity inoshanduka nekushambadzira, tembiricha nePH.
Viscosity Properties
Mhinduro yeHPMC inoratidza zvivakwa zveiyo isiri-Newtonian fluid, uye viscoity yayo inoderera nekuwedzera shear rate, kureva kuti, inoratidzira nzvimbo dzinotyisa. Ichi chivakwa chine pesvedzero yakakosha pane yekudzvinyirira yekumanikidza nekuti inogona kupa vhiza yakakodzera kuti isaverengereye svina yezvidimbu asi usiri kuvenga kana uchimhanya.
Michina yekushandura kweHPMC pakugadzikana kwekumiswa
1. Kukakavara
Iko kukonzeresa mhedzisiro yeHPMC ndeyekudzivirira iyo svutugadzike yezvikamu zvakasimba nekuwedzera iyo viscosity yekumiswa. Iko kukonzeresa mhedzisiro inonyanya kuratidzwa mune zvinotevera zvinhu:
Kuwedzera iyo visikom yeiyo yepakati: HPMC inogona kuwedzera zvakanyanya zvikwangwani zvekumiswa, nekudaro kuderedza huwandu hwenzvimbo dzakasimba mumvura. Izvi zvinodaro nekuti maererano nemutemo waSheneka, mwero wezvemataurirwo ezvinyorwa zvakaringana kune visikoka yeiyo svikiro. Kuwedzera kweViscosity kunogona kuita zvinobudirira kudzora pasi pezvidimbu uye kusimudzira kugadzikana kwekumiswa.
Kugadzira chimiro chechitatu-chakapetwa netiweki: HPMC inogona kugadzira gel-senge network chimiro mumvura, iyo inogona kutora uye kugadzirisa zvimedu zvakasimba uye kudzivirira kubva pakugadzirisa. Iyi network network inochengetwa neHydrogen zvisungo uye hydrophobic kutaurirana, kuchengeta zvidimbu zvakanyatso kuparadzaniswa.
2. Electrostatic mhedzisiro
Iyo molecular chimiro cheHPMC inotakura imwe yekubhadhara (semuenzaniso, kuburikidza nehydroxyl kana hydroxypruspropyl mapoka), iyo inogona kupindirana nemutungamiriri wezvikamu zvakasikwa mukumiswa. Nekugadzirisa iyo yekukonzeresa zvevakaringana, HPMC inogona kuwedzera iyo electrostatic yekudzora pakati pezvimedu, nekudaro ichidzivirira kuunganidzwa uye kuwanda kwezvidimbu.
Kubhadhara
Simbisa masisitimu e9lodal: Mune mamwe marongero emari, HPMC inogona kubatsira kudzikisira zvakadzikamisa zvimedu zvevakarukwa uye kudzivirira kubva kuVan Der Waals mauto kana mamwe mauto anokwezva.
3. STERIC TRISHERT Mhedzisiro
HPMC mamorekuru inogona kuumba spatial barrier yakamiswa, iyo inogona kudzivirira kutaurirana uye kusunganidzwa pakati pevhu, nekudaro zvichikura kugadzikana kwekumiswa.
Spatial Barrier: HPMC mamorekuru inoumba layer layer zvikamu zvakakomberedza, izvo zvinogona kudzivirira zvimedu kubva pakusvika, nekudaro kuderedza mukana wekukwezva uye kuti sedimentation.
Spatal Stability: Nekuda kwekuvapo kweHPMC mamorekuru, kutaurirana zvakananga pakati pezvikamu zvinoderedzwa, uye chipingamupinyi ichi chinotendera zvidimbu zvekumiswa kuti zvirambe zvakazara kwenguva yakareba.
4. Svomukati chiitiko
Iyo sosi yekuita yeHPMC inobvumira kuAdsorb pamusoro pechikamu chakasimba kuti ugadzire kuunganidzira kubhururuka. Uku kuunganidza hakusi kungoita kuti zvimiseswe, asi zvakare zvinowedzera hydrophilicity yezvikamu zvimedu, zvichiita kuti zvive nyore kuparadzira mumidhiyamu.
Sosi yekugadziridzwa: Nekushambadzira pamusoro pechikamu, HPMC inogona kuchinja zvivakwa zvemuviri uye zvemakemikari zvechikamu chepasi uye kuwedzera kupararira uye kugadzikana kwezvikamu zvacho.
Deredza kusangana neHPMC kunogona kuderedza kusawirirana pakati peiyo svutugadzike pakati nepakati, zvichiita kuti zvive nyore kuti zvimedu zvakanyatso kuparadzirwa mune svikiro.
Mienzaniso yeHPMC application mune dzakasiyana kumiswa
Zvinodhaka kumiswa
Mukumiswa kwezvinodhaka, HPMC inowanzoshandiswa kudzikisira mamiriro ekupararira ezvinyorwa zvinoshanda zvechechi. Nekugadzirisa iyo svutugadzike uye iyo smecarration yeHPMC, iyo rateological zvivakwa zvekumiswa zvinogona kudzorwa, kuitira kuti zvigadziro zvinodhaka zvinoramba zvakachengetwa uye kushandisa, kuve nechokwadi chekuenderana.
Mumuromo memuromo wemamwe mishonga inorwisa mabhakitiriya kana antibacterial zvinodhaka, HPMC inoshandiswa seyakakwenenzverwa kuitira kuti isimbe yemishonga yemishonga iwe uchivandudza kuravira kwakakodzera uye fluidity.
Mishonga yekuuraya zvipuka
Mukushivirira kwekuuraya zvipuka, HPMC inogona kuvandudza kuparadzirwa kwemvura yekuuraya zvipuka mumvura uye kuderedza kuiswa kwemishonga yekuuraya zvipuka, nekukasira kubatsira kushanda uye kushanda kwe pestic.
Mukupemberera
Chikafu uye cosmetic kumiswa
Mune chikafu chokudya uye cosmetic, HPMC inoshandiswa zvakanyanya sedhizimusi uye thickener. Semuenzaniso, mune zvigadzirwa zvakadai se emulsions kana kirimu, hpmc inogona kuvandudza kugadzirwa kwechigadzirwa uye kudzivirira kuoma uye kufungidzira.
Mumakiromita eganda, HPMC inogona kushandiswa seanotenderera kuti ipe chimiro chetsika uye nekuwedzera maitiro ekunyoroveswa, zvekuti zvigadziro zvinoshanda zvakaparadzirwa, uye kugadzikana kwechigadzirwa chechigadzirwa chakavandudzwa.
HPMC inokanganisa kugadzikana kwekumiswa kuburikidza nemhando dzakasiyana siyana dzemitambo, kusanganisira kuwedzera viscosity, kuvandudza magetsi emhedzisiro, kupa stericpresties, yekupa steriction uye chiitiko chemagetsi. Aya maitiro anoshanda pamwechete kugadzira HPMC chishandiso chinoshanda chekuvandudza kusimba kwekumiswa. Kushandisa kwayo kwakakura muminda yemishonga, mishonga yekuuraya zvipuka, chikafu uye cosmetics inoenderera inosimbisa zvakanakira zvakanakira sekumiswa kweStabilizer. Mune ramangwana, sekuda kwekusimudzirwa kwekumiswa kunowedzera kuwedzera, kutsvakwa uye kushandiswa kweHPMC kucharamba kuri kuwedzera.
Kutumira Nguva: Kukadzi-17-2025