I-Hydroxypropylmethylcellellellellose (HPMC) ingamakhemikhali asetshenziswa kabanzi kwizimboni eziningana. Isetshenziselwa ikakhulukazi izinhloso zokuqina kanye nokukhipha izinhloso ezinkambu zokwakha, ukudla, izimonyo kanye nemithi yezemithi. Kulesi sihloko, sixoxa ngezeluleko ezithile zendlela yokusebenzisa i-HPMC ngempumelelo kwinqubo yokukhiqiza.
1. Qonda izici ze-HPMC
Ngaphambi kokusebenzisa i-HPMC kwinqubo yokukhiqiza, kubalulekile ukuqonda izakhiwo zayo zomzimba nezamakhemikhali. I-HPMC incane kakhulu emanzini futhi insoluble ku-organic solvents. Uma ungezwe emanzini, kwakha isixazululo esicacile nesibonakalayo. I-HPMC ayilona ubuthi, okungelona i-Ionic, futhi ayiphenduli namanye amakhemikhali.
2. Thola ibanga elifanele le-HPMC
I-HPMC iyatholakala kumabanga amaningana, ngalinye linama-visosities ahlukile, izinsimbi zamangqamuzana kanye nosayizi wezinhlayiyana. Ukukhetha ibanga elifanele kuya ngohlobo lomkhiqizo olwenzayo. Isibonelo, uma wenza uketshezi oluncane, ungahle udinge ibanga eliphansi le-HPMC, kanye nemikhiqizo emikhulu, ibanga eliphakeme le-viscosity. Ukubonisana nomenzi we-HPMC kunconywa ukunquma ibanga elifanele lomkhiqizo wakho.
3. qinisekisa izimo zokugcina ezifanele
I-HPMC iyi-hygroscopic, okusho ukuthi ithola umswakama emkhathini. Kubalulekile ukugcina i-HPMC endaweni eyomile nepholile ukuvikela ukukheka noma ukuqina. Kufanele igcinwe ezitsheni ze-airtight ukugwema ukuvezwa komoya noma umswakama.
4. Hlanganisa kahle i-HPMC nezinye izithako
I-HPMC isetshenziswa ikakhulukazi njengesikhulu noma isigaxa ngesikhathi senqubo yokukhiqiza. Kubalulekile ukuxuba i-HPMP kahle nezinye izithako zokuqinisekisa ingxube enobungozi. I-HPMC kufanele ingezwe emanzini futhi ivuse kahle ngaphambi kokuxuba nezinye izithako.
5. Sebenzisa inani elifanele le-HPMC
Inani elifanele le-HPMC ukwengeza kumkhiqizo lincike kwizakhiwo ezibonakalayo ezifunwa, ukubonakala nezinye izithako. Ngaphezulu noma ngaphansi komthamo we-HPMC kungathinta ikhwalithi nokuqina komkhiqizo wokugcina. Kunconywa ukusebenzisa i-HPMC ngaphakathi kwebanga elicacisiwe elinconywe ngumenzi.
6. Ngena kancane kancane i-HPMC ukuze amanzi
Lapho ungeza i-HPMC ukuze amanzi, kufanele angezwe kancane kancane ukuvikela ukwakheka kwama-clumps. Ukuvuselela okuqhubekayo kuyadingeka lapho ungeza i-HPMC emanzini ukuze uqinisekise ingxube engaguquki. Ukungeza i-HPMC ngokushesha okukhulu kuzoholela ekuhlakazeni okungalingani, okuzothinta umkhiqizo wokugcina.
7. Gcina i-PH efanele
Lapho usebenzisa i-HPMC, i-PH yomkhiqizo ibalulekile. I-HPMC inebanga elilinganiselwe le-PH, phakathi kuka-5 no-8.5, ngaphezu kwalokho ukusebenza kwalo kungancishiswa noma kulahlekelwe. Ukugcina izinga le-PH elifanele kubalulekile lapho usebenza ne-HPMC.
8. Khetha izinga lokushisa elifanele
Lapho usebenzisa i-HPMC, izinga lokushisa lomkhiqizo ngesikhathi sokukhiqiza nokugcina libalulekile. Izakhiwo ze-HPMC, njengokusobala, ukuzilibazisa, kanye ne-gelation, kuncike ekushiseni. Izinga lokushisa elifanelekile lokuxuba i-HPMC lingama-20-45 degrees Celsius.
9. Bheka ukuhambisana kwe-HPMC nezinye izithako
Akuzona zonke izithako ezihambelana ne-HPMC. Ukuhambisana kwe-HPMC nezinye izithako kufanele kuhlolwe ngaphambi kokungeza i-HPMC. Izithako ezithile zinganciphisa ukusebenza kwe-HPMC, kanti ezinye zingayithuthukisa.
10. Qaphela imiphumela emibi
Yize i-HPMC ingeyona inobuthi futhi iphephile ukuyisebenzisa, kungadala ukucasuka kwesikhumba noma ukucasuka kwamehlo. Kufanele kuthathwe izinyathelo zokuphepha, njengokugqoka imishini yokuvikela enjengamagilavu kanye nama-goggles, nokugwema ukuphefumula i-HPMC uthuli.
Ukufingqa, ukwengeza i-HPMC kwinqubo yokukhiqiza kungathuthukisa ikhwalithi nokuqina komkhiqizo. Kodwa-ke, ukuze usebenzise i-HPMC ngempumelelo, kubalulekile ukuthatha izinyathelo zokuphepha ezidingekayo bese ulandela amathiphu angenhla.
Isikhathi sePosi: Jul-28-2023