Hydroxypropyl methylcellulose (HPMC) ndeyekuwedzera kune zvakasiyana-siyana inoshandiswa zvakanyanya muindasitiri yekuvaka, kunyanya mumadziro putty maumbirwo.HPMC inopa akawanda mabhenefiti anobatsira kuvandudza mashandiro uye mhando yemadziro putty.Heano matatu makuru mabhenefiti ekushandisa HPMC mumadziro putty:
Kuchengetedzwa kwemvura uye kuenderana:
Imwe yemabhenefiti makuru ekubatanidza HPMC mumadziro putty maumbirwo ndiyo yakanakisa yekuchengeta mvura zvivakwa.HPMC inonzi hydrophilic polymer, zvinoreva kuti ine hukama hwakasimba hwemvura.Kana yawedzerwa kumadziro putty, HPMC inoumba firimu rinochengeta mvura rakatenderedza masimende, kudzivirira mvura kubva nekukurumidza kubuda panguva yekurapa.
Iko kugona kweHPMC kuchengetedza hunyoro mumusanganiswa kune akati wandei mabhenefiti emadziro putty application.Chokutanga uye chinonyanya kukosha, inovandudza kushanda kweputty uye inowedzera nguva yayo yakazaruka, zvichiita kuti zvive nyore kupararira uye kutsetseka pamusoro pe substrate.Izvi zvinonyanya kubatsira muzvirongwa zvekuvaka, uko vashandi vangada nguva yakawanda yekunyorera uye kupedza madziro emadziro asati apera.
Uye zvakare, HPMC's mvura-inobata simba inobatsira kuvandudza putty adhesion kune substrate.Kuvepo kwenguva refu kwemvura kunovimbisa hydration yakakodzera yemasimenti particles, zvichiita kuti chisungo chakasimba uye chinogara kwenguva refu pakati pemadziro putty uye pasi pasi.Izvi zvakakosha kune kushanda kwenguva refu uye kutendeseka kwemadziro putty ari kuiswa.
Kuvandudza kubatana uye sag kuramba:
HPMC inoshanda seyakakora uye bhainda mumadziro putty maumbirwo, inosimudzira kubatana kwezvinhu.Kuvapo kweHPMC kunobatsira kuchengetedza kutendeseka uye chimiro cheiyo putty, ichidzivirira kubva pakudonha kana kudonha kana ichiiswa kune yakatwasuka nzvimbo.Izvi zvinonyanya kukosha kune zvikumbiro zvepamusoro kana pakushanda pamadziro pamakona akasiyana.
Iyo yekukora zvivakwa zveHPMC inobatsira kuwedzera ukobvu uye kuenderana kwemadziro putty, ichiibvumira kuti inamate zvakanyanya kune substrate pasina kumhanya kana kudonha.Nekuda kweizvozvo, madziro emadziro ane HPMC ane yakakwirira kuramba sag, kuve nechokwadi chekushanda uye kunoenderana, kunyanya pane dzakamira uye dzakasimudzwa nzvimbo.Ichi chivakwa chinogonesa yakatsetseka uye inoyevedza kupedzisa.
Uye zvakare, iyo yakawedzera kubatana yakapihwa neHPMC inobatsira madziro putty kuramba kupaza.Iyo polymer inoumba firimu rinochinjika rinogashira kufamba kudiki mu substrate, kuderedza mukana wekutsemuka nekufamba kwenguva.Ichi ndicho chinhu chakakosha mukushanda kwemadziro putty, sezvo kuputika kunogona kukanganisa kutaridzika uye kusimba kwejasi rakaiswa.
Kuwedzerwa kunamatira uye kusimba kwekubatanidza:
Kunamatira chinhu chakakosha mukuita kwemadziro putty, iyo inobata zvakananga kusimba kwekubatanidza pakati pe putty uye substrate.HPMC inoita basa rakakosha mukuvandudza kunamatira nekugadzira firimu rakabatana uye rinochinjika rinokurudzira kunamatira kwakasimba kwechiso.
Iyo yekuchengetera mvura yeHPMC inova nechokwadi chekuti mvura yakakwana inowanikwa kune hydration yemasimende masimende, ichikurudzira kuumbwa kwechisungo chakasimba pakati pemadziro putty uye substrate.Izvi zvinonyanya kukosha kana uchiisa putty kune porous kana inonetsa nzvimbo, uko kuwana kunamatira kwakanaka kunogona kunetsa.
Pamusoro pezvo, HPMC inobatsira kuderedza shrinkage panguva yekuomesa uye kurapa maitiro emadziro putty.Kuderedza shrinkage kunobatsira kuchengetedza kusangana pakati pe putty uye substrate, zvichiwedzera kusimbisa chisungo simba.Mhedzisiro ndeye madziro putty inonamatira zvakasimba kune akasiyana siyana, ichipa kushanda kwenguva refu uye kuramba kupeuka kana delamination.
Hydroxypropyl methylcellulose (HPMC) inopa akawanda akakosha mabhenefiti kana akaiswa mumadziro putty maumbirwo.Yayo inochengetedza mvura inosimudzira kushanda uye kunamatira, nepo kukora uye kugona kwayo kusunga kunobatsira kuvandudza kubatana uye sag kuramba.Iko kushandiswa kweHPMC mumadziro putty maumbirwo anogona pakupedzisira kupa indasitiri yekuvaka nekugara kwenguva refu, yakanaka uye yakakwirira-yekuita machira emukati nekunze kwekunze.
Nguva yekutumira: Nov-28-2023