HydroxyPropyl methylcellose (HPMC) is is is is-ionic, yemvura-sollulable cellerose inoshandiswa mune dzakasiyana-siyana maindasitiri akadai semagetsi, chikafu, zvidyarwa, zvikafu, uye kuvaka. Imwe yehunhu hwayo hwakakosha hunhu hwayo hwekupa zvisingawirirane viscosity mune mhinduro uye mafomu. Maitiro ekugona kweHPMC yekuchengetedza zvimiro zvakasarudzika uye zvisingawirirani zvinowanzoitika uye zvinogona kunzwisiswa nekuongorora chimiro chavo, uye chekuita nemvura, uye maitiro pasi pemamiriro akasiyana.
Molecular chimiro uye solubility
HPMC inotorwa kubva kuCellulose, polymer yakasikwa inosanganisira zvikamu zveGlucose zvakabatana ne β-3,4-glycosic zvisungo. Maitiro ekushandura anosanganisira kusuma kweDethoxyl uye hydroxypruspropyl mapoka kune iyo cellulose backbone, zvichikonzera kuHydroxyprosllSlosellose. Uku kugadziridzwa kunowedzera iyo solubility yeHPMC mumvura uye organic sol sol.
Dhigirii rekutsiva DS rinoreva nhamba yehuwandu hwe hydroxyl mapoka anotsiviwa pane anhydroglucose unit, nepo ms anoratidza huwandu hwehuwandu hwevaridzi vezvikamu zvakadzama pamusha weAnhydroglucose. Iyi parameter inopa HPMC's Solubility, zvivakwa zvekupisa, uye viscosity.
Michina ye viscosity kusarudzika
Hydration uye Gel Kuumbwa:
HPMC inowedzerwa nemvura, iyo iri pasi pehydration, uko mamorekuru emvura anopinda uye kudyidzana nemaketani emapolymom, achivatora kuti vazvipire. Iyi nzira yekudyira inotungamira kune kuumbwa kweiyo gel network iyo inopa kune yekugadzirisa zvidzori. Iyo hydration inokurudzirwa nekushisa, pH, uye kuvapo kwemaronda, asi hpmc's molecular chimiro chinozvitendera kuti iite iyo yakagadzikana gel network kune huwandu hwemamiriro ezvinhu.
Molecular uremu uye polymer chain yekubatanidzwa:
Uremu hwemanyorerwe hweHPMC zvakanyanya zvinokanganisa mavhikoti ayo. Yakakwira molecular uremu polymers ine maketani akareba, ayo ari nyore nyore, achiwedzera zvisizvo zvogadziriswa. HPMC inowanikwa mumakirogiramu akasiyana siyana ane masero akasiyana-siyana, achibvumira kudzora chaiko pamusoro pewiscosity yechigadzirwa chekupedzisira. Iyo intanglement uye kudyidzana kwemaketani aya polymer akagadzira network inopa isingaenderane viscosity.
Thermal Glation:
HPMC inoratidza yakasarudzika inogadzira zvigadzirwa zvemukati, uko inogadzira gel pane kupisa uye inodzosera mhinduro pakutonhora. Iyi nzvimbo inotsvererwa yakakonzerwa neiyo nzira uye hydroxyprupropyl mapoka, iyo inosimudzira hydrophobic yekudyidzana kuHydrophobic Kubatanidzwa kuHydrophobic Kubatanidzwa kuHydroport Pakutonhora, uku kuwirirana kunoderera, uye gel inodurura. Ichi chivakwa chinonyanya kubatsira mukushandisa zvinoda kupisa-tembiricha-inotsamira viscossity shanduko uchiramba uchienderana zvachose.
Rheological maitiro:
HPMC Solutions inoratidzira isiri-Newtonian, Shear-kuonda maitiro, zvichireva kuti viscoity yavo inoderera nekuwedzera shear rate. Ichi chivakwa chinovimbisa kuti mumamiriro ezvinhu akasiyana siyana ekugadzirisa, sekusanganisa kana kupomba, iyo viscosity yeHPMC Solutions inogadzirisa zvakaringana asi inodzokera kune yayo yekutanga mamiriro kana isimba rayo rabviswa. Iyi yeTixotropic maitiro inobatsira kuchengetedza isingawirirane viscosity panguva yekushandisa.
PH Stability:
Kusiyana nedzimwe dzakawanda polymers, HPMC zvine kusagadzikana kune pH shanduko mune ye3 kusvika ku11. Uku kugadzikana kuri nekuda kweiyo is-ionic zvisikwa, izvo zvinodzivirira kubva pakuita neacids kana zvigadziko. Nekuda kweizvozvo, HPMC inochengetedza tarisiro yekuvhara muhuwandu hwepamoyo ph range, ichiita kuti zviite kuti zvibodzwa zvakasiyana-siyana kuti ph inogona kuchinjika.
Zvikumbiro zvinobatsirwa kubva kusingaenderane viscosity
Mishonga
Muchirongwa chemishonga, HPMC inoshandiswa seanoti, Binder, uye inodzorwa-yakaburitswa-mumiririri. Yayo talalal tarisiro yakakosha kuti uone yunifomu yeunifomu yekugoverwa, kumiswa kwakasimba, uye kufungidzira zvinodhaka zvinodhaka. Semuenzaniso, muzviyo zvebiritsi, HPMC inovimbisa kwazvo, kunyangwe application, uye mumhinduro dzeOPHITHAMC, inopa goko rakakodzera rekusangana kwenguva refu neziso.
Indasitiri yechikafu
Muindasitiri yechikafu, HpMC inoita sechiitiko, Stabilizer, uye thickener. Kugona kwayo kupa zvisingagumi viscosity kunokosha kuti uchengete chimiro uye kugadzikana kwezvigadzirwa zvakaita sakarukwa, zvipfeko, uye zvinhu zveDaily. HpMC's Thermal Golation Zvivakwa zvinonyanya kubatsira mune zvigadzirwa zvinoda viscosity shanduko panguva yekubika.
Kuvaka
Muzvinhu zvekuvaka, HPMC inoshandiswa mumasimendi uye plaster mafomu ekuvandudza basa, kuchengetwa kwemvura, uye kudedera. Kusawirirana viscosity inovimbisa kuti izvi zvigadzirwa zvinogona kuiswa mushe uye chengetedza kutendeka kwavo panguva yekurapa.
Cosmetics
HPMC inoshandirwa mu cosmetic mafomu ekurongedza kwayo uye kusimbisa zvivakwa. Muzvigadzirwa zvakaita semarara, uye mafiresi, uye shampoos, kusarudzika viscosity inovimbisa chimiro chinofadza uye kugadzikana, ruzivo rwevashandisi.
Zvinhu zvinokanganisa viscosity uye mhando yekudzora
Zvinhu zvinoverengeka zvinogona kupesvedzera visikopa yeHPMC mhinduro, kusanganisira kusunganidzwa, tembiricha, uye kuvapo kwemagetsi kana zvimwe zvinowedzera. Kuti uwane zvisingawirirane vhiza, zvakakosha kudzora iyi paramita panguva yekuumbwa uye kugadzirisa. Hunhu hwekudzora matanho anosanganisira:
Raw zvinyorwa zvinosarudzwa:
Kuverengera kushandiswa kweiyo yakakwirira-yakazvimiririra makomelity uye kuchengetedza madhigirii ekutsiva ekutsiva uye kutsiviwa kwekutsiva kwakakosha kwekugadzira hpmc nezvivakwa zvakavimbika.
Kugadzira Maitiro:
Kudzoserwa Kugadzira Maitiro ekugadzira, kusanganisira chaiyo kudzora kwemamiriro ezvinhu panguva yekutsvagira, akakosha pakugadzira hpmc ine inowirirana nehuremu uremu uye kutsiva maitiro.
Kuongorora Kuongorora:
Kuongorora kuongororwa kweHPMC mabheti eViscossity, Molecular uremu kugoverwa, uye kutsiva mapatani kunobatsira kuve nechokwadi chekuenderana. Maitiro akadai seVercometry, Gel Permegraphy chromatography, uye nyukireya magineti resonance spectroscopy inowanzo shandiswa.
Kuchengetedza uye kubata:
Kuchengeterwa kwakakodzera uye kubata HPMC kudzivirira kunyorova uye kusvibiswa kwakakosha. HPMC inofanira kuchengetwa mumidziyo yemigwagwa uye mumamiriro ezvinhu anotonhorera, yakaoma kuchengetedza zvivakwa.
Hpmc's kugona kupa zvisingaenderane viscosity inobva kune yayo yakasarudzika molecular chimiro, hydration zvivakwa, uye maitiro eaya ehondo. Kugadzikana kwaro pamatanho akasiyana phwe, shear-kutetepa zvinhu, uye zvakavimbika kuita pasi pemamiriro ezvinhu akasiyana kuzviita polymer yakavanzika mumaindasitiri akawanda. Kuburikidza nekuzvidzora kwekugadzira maitiro uye mhando yemhando yekuvimbisa, Vagadziri veHPMC vanoona kuti iyi polymer iyi inoenda polymer inoenderera mberi nekusangana nezvinodiwa zvekushandisa zvakashata.
Kutumira Nguva: Kukadzi-18-2025