I-HPMC, igama eliphelele i-Hydroxypropyl Methylcellulose, iyi-ether ye-cellulose engeyona ionic esetshenziswa kakhulu ekwakheni, emithini, ekudleni, kumakhemikhali wansuku zonke nakweminye imikhakha.
1. Ukuhlukaniswa nge-viscosity
I-viscosity ye-HPMC ingenye yezakhiwo zayo ezibalulekile zomzimba, futhi i-HPMC enama-viscosity ahlukene inomehluko omkhulu ekusetshenzisweni. Ububanzi be-viscosity busukela ku-viscosity ephansi (amashumi e-cps) ukuya ku-viscosity ephezulu (amashumi ezinkulungwane zama-cps).
I-HPMC ye-viscosity ephansi: Ivamise ukusetshenziswa ezinhlelweni ezidinga ukuqedwa ngokushesha noma ukugeleza, njengokumiswa kwemithi ewuketshezi, izifutho, njll.
I-HPMC ye-viscosity emaphakathi: isetshenziswa kabanzi kumakhemikhali wansuku zonke, njenge-shampoo, ijeli yokugeza, njll., ehlinzeka ngomphumela wokuqina omaphakathi kanye nezakhiwo ezinhle ze-rheological.
I-viscosity ephezulu ye-HPMC: esetshenziswa kakhulu ezintweni zokwakha, njengodaka olomile, i-ceramic tile adhesive, ingaphakathi nengaphandle le-wall putty, njll., ehlinzeka ngokuqina okuhle kakhulu, ukugcinwa kwamanzi kanye nezakhiwo zokwakha.
2. Ukuhlelwa ngokwezinga lokushintshwa
Izinga lokushintshwa kwe-HPMC lisho inani lama-hydroxypropyl kanye nama-methyl substituents ku-molecule yayo, ngokuvamile evezwa njenge-MS (i-hydroxypropyl degree of substitution) kanye ne-DS (i-methyl substitution).
Izinga eliphansi lokushintsha i-HPMC: incibilika ngokushesha futhi isetshenziswa kakhulu ezinhlelweni ezidinga ukuqedwa ngokushesha, njengokumbozwa kwethebulethi yezemithi neziphuzo ezisheshayo.
Izinga eliphakeme lokushintshwa kwe-HPMC: Ine-viscosity ephezulu kanye nokugcinwa kwamanzi okungcono, futhi ifanele imikhiqizo edinga i-viscosity ephezulu nokugcinwa kwamanzi okuphezulu, njengezinto zokwakha kanye nezimonyo ezisebenza kahle kakhulu zokuthambisa.
3. Ukuhlukaniswa ngezindawo zokufaka izicelo
Ukusetshenziswa okuqondile kwe-HPMC emikhakheni ehlukene kuyahluka kakhulu, futhi kungahlukaniswa ngezigaba ezilandelayo ngokuya ngezinkambu zohlelo lokusebenza:
izinto zokwakha
Iqhaza elikhulu le-HPMC emkhakheni wokwakha ukuthuthukisa ukusebenza kokwakhiwa nokuqina kwezinto, okuhlanganisa:
Udaka olomile: I-HPMC inikeza ukugcinwa kwamanzi okuhle, ukuthambisa nokusebenza, ukuthuthukisa ukusebenza kahle kokwakhiwa kanye nekhwalithi yomkhiqizo oqediwe.
Ukunamathiswa kwethayela: Khulisa amandla okubopha kanye nezakhiwo ezimelene nokushelela ukuze uqinisekise ukuzinza nokuqina kokugandaywa kwamathayela.
I-Paint ne-putty: Thuthukisa i-rheology nokugcinwa kwamanzi kapende ne-putty ukuvimbela ukuqhekeka nokulahlekelwa kwempushana.
umuthi
Emkhakheni wokwenza imithi, i-HPMC isetshenziswa kakhulu njengezihlanganisi zemithi, okuhlanganisa:
I-tablet coating: Njengento yokwembathisa ithebhulethi, ihlinzeka ngobufakazi bomswakama, ukuxazululeka kanye nemisebenzi yokukhishwa okuqhubekayo ukuze kuthuthukiswe ukuzinza nokubukeka komuthi.
Ijeli: isetshenziselwa ukulungisa amajeli emithi, ihlinzeka ngokunamathela okuhle nokuvumelana kwe-biocompatibility.
ukudla
I-HPMC isetshenziswa kakhulu njenge-thickener, emulsifier and stabilizer embonini yokudla, okuhlanganisa:
Imikhiqizo yama-noodle: Khulisa ukuqina kanye nokunwebeka kwenhlama, thuthukisa ukunambitheka nokuthungwa.
Imikhiqizo yobisi: Njenge-emulsifier ne-stabilizer, ivimbela ukuhlukaniswa kanye nemvula yemikhiqizo yobisi futhi ithuthukise ukuqina komkhiqizo.
Amakhemikhali nsuku zonke
Kumakhemikhali ansuku zonke, i-HPMC isetshenziswa kabanzi njengama-thickeners nama-stabilizers, okuhlanganisa:
I-Shampoo nejeli yokugeza: Nikeza i-viscosity emaphakathi kanye ne-rheology ukuze uthuthukise ulwazi lokusetshenziswa komkhiqizo.
Imikhiqizo yokunakekelwa kwesikhumba: Njengokuqina nokuthambisa, ithuthukisa umphumela wokuthambisa kanye nesipiliyoni sokusebenzisa umkhiqizo.
4. Ezinye izinjongo ezikhethekile
I-HPMC ingasetshenziswa kwezinye izinkambu ezikhethekile, njengezimayini zensimu kawoyela, imboni yobumba, imboni yamaphepha, njll.
Ukukhiqizwa kwe-Oilfield: kusetshenziselwa uketshezi lokumba kanye noketshezi oluqhekekayo ukuze kuhlinzekwe ngezakhiwo ezinhle kakhulu zokujiya nokunciphisa uketshezi.
Imboni ye-Ceramic: isetshenziswa njenge-binder kanye ne-ejenti elengayo ukuze kuthuthukiswe ukuzinza nokumanzi kwe-ceramic slurry.
Imboni yokwenza amaphepha: isetshenziselwa ukwelapha phezulu kwephepha ukuze kwandiswe amandla ayo kanye nokumelana namanzi.
Njengokuphuma kokusebenza okuningi kwe-cellulose, i-HPMC inezici ezinhle kakhulu zomzimba namakhemikhali kanye namathemba okusebenza abanzi. Izinhlobo ezahlukene ze-HPMC zinezici zazo ngokuya nge-viscosity, izinga lokushintshwa nokusetshenziswa. Ukukhetha uhlobo olufanele lwe-HPMC ngokuya ngezidingo ezithile zohlelo lokusebenza kungathuthukisa kakhulu ukusebenza komkhiqizo kanye nekhwalithi. Ngokuthuthuka kwesayensi nobuchwepheshe kanye nokwandiswa kwezinkambu zokufaka izicelo, ukusetshenziswa kwe-HPMC kuzoba banzi futhi kujule.
Isikhathi sokuthumela: Jul-31-2024