Focus on Cellulose ethers

Ungahlola kanjani okuqukethwe komlotha we-Hydroxypropyl Methylcellulose (HPMC)?

Ungahlola kanjani okuqukethwe komlotha we-Hydroxypropyl Methylcellulose (HPMC)?

Ukuhlola okuqukethwe komlotha we-Hydroxypropyl Methylcellulose (HPMC) kuhlanganisa ukunquma iphesenti lensalela ye-inorganic esele ngemuva kokuba izingxenye ze-organic sezishisiwe. Nansi inqubo evamile yokuhlola okuqukethwe komlotha kwe-HPMC:

Izinto Ezidingekayo:

  1. Isampula ye-Hydroxypropyl Methylcellulose (HPMC).
  2. Isithando se-muffle noma isithando somlilo
  3. I-crucible nesivalo (eyenziwe ngezinto ezingasebenzi njenge-porcelain noma i-quartz)
  4. I-Desiccator
  5. Ibhalansi yokuhlaziya
  6. Isikebhe esivuthayo (uma uthanda)
  7. Izibambi noma izibambi

Inqubo:

  1. Ukukalwa kwesampula:
    • Kala i-crucible engenalutho (m1) uye ku-0.1 mg eseduze usebenzisa ibhalansi yokuhlaziya.
    • Beka inani elaziwayo lesampula le-HPMC (ngokuvamile amagremu angu-1-5) ku-crucible futhi urekhode isisindo esihlanganisiwe sesampula ne-crucible (m2).
  2. Inqubo ye-ashing:
    • Beka i-crucible equkethe isampula ye-HPMC esithandweni somlilo noma esithandweni somlilo.
    • Shisisa isithando somlilo kancane kancane ekushiseni okucacisiwe (imvamisa engu-500-600 ° C) futhi ugcine lokhu kushisa isikhathi esinqunyiwe (ngokuvamile amahora angu-2-4).
    • Qinisekisa ukushiswa okuphelele kwezinto eziphilayo, ushiye umlotha wezinto ezingaphili kuphela.
  3. Ukupholisa nokukala:
    • Ngemuva kokuthi inqubo yokuqothula isiphelile, susa i-crucible esithandweni usebenzisa ama-tongs noma abanikazi be-crucible.
    • Beka i-crucible nokuqukethwe kwayo ku-desiccator ukuze kuphole ekamelweni lokushisa.
    • Uma usupholile, kala kabusha insalela ye-crucible kanye nomlotha (m3).
  4. Ukubala:
    • Bala okuqukethwe komlotha wesampula ye-HPMC usebenzisa ifomula elandelayo: Okuqukethwe komlotha (%) = [(m3 - m1) / (m2 - m1)] * 100
  5. Ukutolika:
    • Umphumela otholiwe umele iphesenti lokuqukethwe komlotha wezinto ezingaphili okhona kusampula ye-HPMC ngemva kokusha. Leli nani likhombisa ubumsulwa be-HPMC kanye nenani lensalela yezinto ezingaphili ezikhona.
  6. Ukubika:
    • Bika inani lokuqukethwe komlotha kanye nanoma yimiphi imininingwane efanele njengezimo zokuhlola, ukuhlonza isampula, nendlela esetshenzisiwe.

Amanothi:

  • Qinisekisa ukuthi i-crucible nesivalo kuhlanzekile futhi akungcoliswanga ngaphambi kokusetshenziswa.
  • Sebenzisa isithando somlilo se-muffle noma isithando somlilo esinamandla okulawula izinga lokushisa ukuze uqinisekise ukushisa okufanayo kanye nemiphumela enembile.
  • Phatha i-crucible nokuqukethwe kwayo ngokucophelela ukuze ugweme ukulahleka kwezinto noma ukungcoliswa.
  • Yenza inqubo yomlotha endaweni enomoya omuhle ukuze uvimbele ukuchayeka emikhiqizweni evuthayo.

Ngokulandela le nqubo, ungakwazi ukunquma ngokunembile okuqukethwe komlotha wamasampula e-Hydroxypropyl Methylcellulose (HPMC) futhi uhlole ubumsulwa nekhwalithi yawo.


Isikhathi sokuthumela: Feb-12-2024
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