Ungawujonga njani umxholo wothuthu lweHydroxypropyl Methylcellulose (HPMC)?

Ukujonga umxholo wothuthu lweHydroxypropyl Methylcellulose (HPMC) kubandakanya ukumisela ipesenti yentsalela ye-inorganic eshiywe emva kokuba izinto eziphilayo zitshisiwe. Nantsi inkqubo jikelele yokuvavanywa komxholo wothuthu kwi-HPMC:

Izinto ezifunekayo:

1. Isampuli ye-Hydroxypropyl Methylcellulose (HPMC).
2. Isithando somlilo okanye isithando somlilo
3. I-Crucible kunye nesiciko (enziwe ngezinto ezingasebenziyo ezifana ne-porcelain okanye i-quartz)
4. Desiccator
5. Ibhalansi yohlalutyo
6. Isikhephe sokutshisa (uyazikhethela)
7. Iifinyi okanye izibambi ezinqamlezileyo

Inkqubo:

1. Ubunzima besampulu:
   • Ukulinganisa i-crucible engenanto (m1) ukuya kwi-0.1 mg ekufutshane usebenzisa ibhalansi yokuhlalutya.
   • Beka inani elaziwayo lesampuli ye-HPMC (ngokuqhelekileyo i-1-5 grams) kwi-crucible kwaye urekhode ubunzima obudibeneyo besampuli kunye ne-crucible (m2).
2. Inkqubo yothuthu:
   • Beka i-crucible equlethe isampuli ye-HPMC kwisithando somlilo okanye isithando somlilo.
   • Ukufudumala isithando somlilo ngokuthe ngcembe kwiqondo lokushisa elichaziweyo (ngokuqhelekileyo i-500-600 ° C) kwaye ugcine eli qondo lokushisa kwixesha elimiselweyo (ngokuqhelekileyo iiyure ezingama-2-4).
   • Qinisekisa ukutshiswa ngokupheleleyo kwezinto eziphilayo, ushiya ngasemva uthuthu lwe-inorganic kuphela.
3. Ukupholisa kunye nobunzima:
   • Emva kokuba inkqubo yokuhlamba iphelile, susa i-crucible kwisithando somlilo usebenzisa i-tongs okanye i-crucible holders.
   • Beka i-crucible kunye neziqulatho zayo kwi-desiccator ukupholisa kwiqondo lokushisa.
   • Emva kokuba upholile, phinda ulinganise i-crucible kunye nentsalela yothuthu (m3).
4. Ukubala:
   • Bala umxholo wothuthu lwesampulu ye-HPMC usebenzisa le fomula ilandelayo: Umxholo wothuthu (%) = [(m3 - m1) / (m2 - m1)] * 100
5. Utoliko:
   • Isiphumo esifunyenweyo simele ipesenti yothuthu lwe-inorganic olukhoyo kwisampulu ye-HPMC emva kokutshiswa. Eli xabiso libonisa ukucoceka kwe-HPMC kunye nesixa sentsalela yemathiriyeli ekhoyo.
6. Ingxelo:
   • Xela ixabiso lomxholo wothuthu kunye nazo naziphi na iinkcukacha ezifanelekileyo ezifana neemeko zovavanyo, ukuchongwa kwesampulu, kunye nendlela esetyenziswayo.

Amanqaku:

• Qinisekisa ukuba i-crucible kunye nesiciko zicocekile kwaye azinasulelo phambi kokusetyenziswa.
• Sebenzisa i-muffle furnace okanye isithando somlilo esinamandla okulawula ubushushu ukuqinisekisa ukufudumeza okufanayo kunye neziphumo ezichanekileyo.
• Phatha i-crucible kunye neziqulatho zayo ngononophelo ukuze ugweme ukulahleka kwezinto okanye ukungcola.
• Yenza inkqubo ye-ashing kwindawo enomoya ococekileyo ukuze uthintele ukuvezwa kwemveliso yokutsha.

Ngokulandela le nkqubo, unokugqiba ngokuchanekileyo umxholo wothuthu lwe-Hydroxypropyl Methylcellulose (HPMC) iisampulu kunye nokuvavanya ubunyulu kunye nomgangatho wabo.