IHydroxypropylmethylcellulose (HPMC) iyikhemikhali esetshenziswa kakhulu ezimbonini ezimbalwa.Isetshenziselwa ikakhulukazi izinjongo zokuqina kanye ne-emulsifying emkhakheni wokwakha, ukudla, izimonyo kanye nemithi.Kulesi sihloko, sidingida amathiphu okuthi ungayisebenzisa kanjani i-HPMC ngempumelelo enqubweni yokukhiqiza.
1. Qonda izici ze-HPMC
Ngaphambi kokusebenzisa i-HPMC kwinqubo yokukhiqiza, kubalulekile ukuqonda izakhiwo zayo ezingokomzimba namakhemikhali.I-HPMC incibilika kakhulu emanzini futhi ayincibiliki kuzincibilikisi zemvelo.Uma yengezwe emanzini, yenza isisombululo esicacile nesibonakalayo.I-HPMC ayinabo ubuthi, ayiyona i-ionic, futhi ayisebenzi namanye amakhemikhali.
2. Thola ibanga elifanele le-HPMC
I-HPMC itholakala kumabanga amaningana, ngalinye linamaviscosity ahlukene, izisindo zamangqamuzana nosayizi bezinhlayiyana.Ukukhetha ibanga elifanele kuncike ohlotsheni lomkhiqizo owenzayo.Isibonelo, uma wenza uketshezi oluncane, ungase udinge i-viscosity grade ephansi ye-HPMC, futhi emikhiqizweni ewugqinsi, izinga eliphezulu le-viscosity.Ukubonisana nomkhiqizi we-HPMC kuyanconywa ukuze kunqunywe izinga elifanele lomkhiqizo wakho.
3. Qinisekisa izimo zokugcina ezifanele
I-HPMC iyi-hygroscopic, okusho ukuthi imunca umswakama ovela emkhathini.Kubalulekile ukugcina i-HPMC endaweni eyomile futhi epholile ukuvimbela ukwakheka noma ukuqina.Kufanele igcinwe ezitsheni ezingangeni moya ukuze kugwenywe ukuchayeka emoyeni noma kumswakama.
4. Xuba kahle i-HPMC nezinye izithako
I-HPMC isetshenziswa kakhulu njenge-thickener noma i-binder ngesikhathi senqubo yokukhiqiza.Kubalulekile ukuxuba i-HPMC kahle nezinye izithako ukuqinisekisa ingxube efanayo.I-HPMC kufanele yengezwe emanzini futhi inyakaze kahle ngaphambi kokuxuba nezinye izithako.
5. Sebenzisa inani elifanele le-HPMC
Inani elifanele le-HPMC elizokwengezwa emkhiqizweni lincike ezintweni ezibonakalayo ezifiselekayo, i-viscosity nezinye izithako.Umthamo ongaphezu noma ngaphansi kwe-HPMC ungathinta ikhwalithi nokuzinza komkhiqizo wokugcina.Kunconywa ukusebenzisa i-HPMC ngaphakathi kwebanga elishiwo elinconywe umenzi.
6. Faka kancane i-HPMC emanzini
Lapho ungeza i-HPMC emanzini, kufanele ifakwe kancane kancane ukuvimbela ukwakheka kwama-clumps.Ukunyakazisa njalo kuyadingeka uma wengeza i-HPMC emanzini ukuze uqinisekise ingxube engaguquki.Ukwengeza i-HPMC ngokushesha kakhulu kuzoholela ekuhlakazweni okungalingani, okuzothinta umkhiqizo wokugcina.
7. Gcina i-pH efanele
Uma usebenzisa i-HPMC, i-pH yomkhiqizo ibalulekile.I-HPMC inebanga le-pH elilinganiselwe, phakathi kuka-5 no-8.5, okungaphezu kwalokho ukusebenza kwayo kungase kwehliswe noma kulahleke.Ukugcina izinga le-pH elilungile kubalulekile uma usebenza ne-HPMC.
8. Khetha izinga lokushisa elilungile
Uma usebenzisa i-HPMC, izinga lokushisa lomkhiqizo ngesikhathi sokukhiqiza nokugcinwa libalulekile.Izici ze-HPMC, ezifana ne-viscosity, ukunyibilika, kanye ne-gelation, zincike ezingeni lokushisa.Izinga lokushisa elifanele lokuxuba i-HPMC ngu-20-45 degrees Celsius.
9. Hlola ukuhambisana kwe-HPMC nezinye izithako
Akuzona zonke izithako ezihambisana ne-HPMC.Ukuhambisana kwe-HPMC nezinye izithako kufanele kuhlolwe ngaphambi kokwengeza i-HPMC.Izithako ezithile zinganciphisa ukusebenza kwe-HPMC, kuyilapho ezinye zingayithuthukisa.
10. Qaphela imiphumela emibi
Nakuba i-HPMC ingenabo ubuthi futhi iphephile ukuyisebenzisa, ingase ibangele isikhumba noma ukucasuka kwamehlo.Izinyathelo zokuphepha kufanele zithathwe, njengokugqoka okokuvikela okufana namagilavu nezibuko, nokugwema ukuphefumula uthuli lwe-HPMC.
Ukufingqa, ukwengeza i-HPMC kunqubo yokukhiqiza kungathuthukisa ikhwalithi nokuzinza komkhiqizo.Nokho, ukuze usebenzise i-HPMC ngempumelelo, kubalulekile ukuthatha izinyathelo zokuphepha ezidingekayo futhi ulandele amathiphu angenhla.
Isikhathi sokuthumela: Jul-28-2023