Hydroxypropyl methylcellulose, inowanzo zivikanwa seHPMC, i polymer inoshanda zvakasiyana-siyana, ine huwandu hwakawanda hwekushandisa mumaindasitiri anosanganisira kuvaka, mishonga uye chikafu. HPMC is a cellulose ether, zvinoreva kuti inotorwa kubva mu cellulose, yakasikwa polima inowanikwa mumiti. Ndiyo inonyanya kushandiswa cellulose ether nekuda kwekusiyana kwayo uye kudhura kwakaderera.
Dissolving HPMC inogona kuve inonyengera maitiro, kunyanya kana uchiedza kuwana homogeneous uye inowirirana mhinduro. Munyaya ino, isu tichakurukura zvimwe zvinhu zvakakosha kuti ticherechedze kana kunyungudika HPMC kuve nechokwadi chakabudirira kuparara uye mhedzisiro yaunoda.
1.Kuchena kweHPMC
Kuchena kweHPMC kunogona kukanganisa zvakanyanya kunyungudika kwayo mumvura uye nezvimwe zvinonyungudutsa. Naizvozvo, zvakakosha kuve nechokwadi chekuti HPMC inoshandiswa ndeyemhando yepamusoro uye kuchena. HPMC yakasvibiswa nezvimwe zvinhu inogona kusanyungudika zvakanaka, zvichiita kuti pave nemapundu kana mapundu mumushonga. Izvi zvinogona kukanganisa kuita kwese kwezvigadzirwa zvine HPMC uye zvinogona kukonzera matambudziko panguva yekugadzira.
2. Nhamba yemhando yeHPMC
HPMC inowanikwa mumagiredhi akasiyana uye viscosity mazinga, negiredhi rega rega rakagadzirirwa imwe application. Giredhi reHPMC rinoshandiswa rinoona huwandu hweHPMC hunodiwa uye tembiricha yayo yekunyungudika. Zvichienderana negiredhi reHPMC, kupisa tembiricha uye nguva zvichasiyana. Naizvozvo, zvakakosha kuti uverenge nekutevera mirairo yemugadziri maererano nehuwandu hweHPMC yekushandisa uye tembiricha inodiwa pakuparara kunoshanda.
3. Solvent uye tembiricha
Sarudzo yekunyungudutsa inoshandiswa uye iyo HPMC yekumisa tembiricha zvinhu zvakakosha zvinokanganisa maitiro ekumisa. Mvura ndiyo inonyanya kushandiswa paHPMC, uye zvakakosha kuona kuti mvura inoshandiswa ndeyemhando yepamusoro uye haina tsvina. Mvura isina kuchena inogona kunge iine zvinosvibisa zvinogona kukanganisa kunyungudika kweHPMC uye kunaka kwechigadzirwa.
Tembiricha painonyungudika HPMC inoitawo basa rakakosha. HPMC inonyungudika zvakanyanya mumvura inodziya, zvirinani pakati pe80-90 degrees Celsius. Nekudaro, zvinofanirwa kucherechedzwa kuti tembiricha haifanire kunge yakakwira zvakanyanya, zvikasadaro iyo HPMC ichave yakasvibiswa uye yakaderedzwa, zvichikonzera kuderera kwe viscosity uye kusashanda zvakanaka. Naizvozvo, zvakakosha kunyatso kudzora kutonhora kweiyo solvent kuve nechokwadi kuenderana uye kwakaringana kuita.
4. Sanganisa uye fambisa
Kusanganisa uye kubvongodza kwakakosha kuti uve nechokwadi chekuparara kweHPMC. Kunyatso kusanganisa uye kubvongodza kuchabatsira kutyora HPMC zvimedu uye kugadzira homogeneous uye inowirirana mhinduro. Nokudaro, zvakakosha kushandisa nzira dzakakodzera dzekusanganisa, dzakadai sepamusoro-shear mixers, iyo inobatsira kuwedzera kusanganisa masimba uye mhirizhonga mukugadzirisa.
5. Kuiswa kweHPMC mhinduro
Iko kusungirirwa kweHPMC mumhinduro chinhu chakakosha chekufunga nezvazvo pakunyungudutsa HPMC. Kana iyo HPMC yekumisikidza yakawandisa, inogona kukonzera clumps kana agglomerates kuti aumbe mumhinduro, zvichiita kuti zviome kuwana yunifomu mhinduro. Kune rumwe rutivi, kana kusungirirwa kwakanyanyisa, kunogona kukonzera mhinduro yakanyanyisa uye ine kusaita zvakanaka.
mukupedzisa
HPMC i polymer inoshanda zvakasiyana-siyana uye ine huwandu hwakawanda hwekushandisa mumaindasitiri akadai sekuvaka, mishonga uye chikafu. Dissolution of HPMC anogona kuva tricky muitiro, uye zvinokosha kunyatsofunga zvinhu zvakadai kuchena, giredhi, solvent, tembiricha, kusanganisa, agitation, uye concentration of the HPMC mhinduro. Kuparara kwakabudirira uye mhedzisiro inodiwa inogona kuwanikwa nekutevera mirairo yemugadziri uye kunyatso kudzora zvinhu izvi.
Nguva yekutumira: Sep-22-2023