Focus on Cellulose ethers

Indlela yokuchithwa kwe (Hydroxypropyl Methyl Cellulose)HPMC

Indlela yokuchithwa kwe (Hydroxypropyl Methyl Cellulose)HPMC

Ukuchithwa kwe-Hydroxypropyl Methylcellulose (HPMC) ngokuqhelekileyo kubandakanya ukusabalalisa i-polymer powder emanzini phantsi kweemeko ezilawulwayo ukuze kuqinisekiswe ukuchithwa okufanelekileyo kunye nokutshatyalaliswa. Nantsi indlela ngokubanzi yokunyibilikisa i-HPMC:

Izinto ezifunekayo:

  1. HPMC umgubo
  2. Amanzi adityanisiweyo okanye adiyiweyo (kwiziphumo ezilungileyo)
  3. Ukuxuba isitya okanye isitya
  4. I-stirrer okanye izixhobo zokuxuba
  5. Isixhobo sokulinganisa (ukuba idosi echanekileyo iyafuneka)

Inkqubo yokupheliswa:

  1. Lungiselela Amanzi: Linganisa ubungakanani obufunekayo bamanzi adiyiweyo okanye adiyiweyo ngokomlinganiselo ofunekayo wesisombululo seHPMC. Kubalulekile ukusebenzisa amanzi akumgangatho ophezulu ukuthintela ukungcola okanye ungcoliseko ekubeni luchaphazele inkqubo yokupheliswa.
  2. Fudumeza Amanzi (Ngokuzithandela): Ukuba kuyimfuneko, fudumeza amanzi kwiqondo lobushushu eliphakathi kwama-20°C ukuya kuma-40°C (68°F ukuya kwi-104°F) ukuze kube lula ukunyibilika. Ukufudumeza kunokukhawulezisa i-hydration ye-HPMC kunye nokuphucula ukusasazwa kwamasuntswana e-polymer.
  3. Kancinci Yongeza i-HPMC Powder: Kancinci yongeza i-HPMC powder emanzini ngelixa uvuselela ngokuqhubekayo ukukhusela i-clumping okanye i-agglomeration. Kubalulekile ukongeza umgubo ngokucotha ukuqinisekisa ukusasazwa okufanayo kwaye uthintele ukuvela kwamaqhuma.
  4. Qhubeka uvuselela: Gcina ukuvuselela okanye ukuphazamisa umxube de i-HPMC powder ihlakazwe ngokupheleleyo kwaye ifakwe emanzini. Oku kuthatha imizuzu emininzi, kuxhomekeke kubungakanani besuntswana lomgubo weHPMC kunye nesantya esishukumisayo.
  5. Vumela i-Hydration: Emva kokongeza i-HPMC powder, vumela umxube ukuba ume ixesha elaneleyo ukuze uqinisekise ukugcwala okupheleleyo kwepolymer. Oku kunokusukela kwimizuzu engama-30 ukuya kwiiyure ezininzi, kuxhomekeke kwibakala elithile kunye nobungakanani besuntswana leHPMC.
  6. Lungisa i-pH (ukuba kuyimfuneko): Kuxhomekeke kwisicelo, kunokufuneka ulungelelanise i-pH yesisombululo se-HPMC usebenzisa izisombululo ze-asidi okanye ze-alkali. Eli nyathelo libaluleke kakhulu kwizicelo apho ubuntununtunu be-pH bubaluleke kakhulu, njengakwimixube yonyango okanye yokhathalelo lomntu.
  7. Isihluzi (ukuba kukho imfuneko): Ukuba isisombululo se-HPMC siqulethe amaqhekeza angaxutywanga okanye i-aggregates enganyibilikiyo, kunokufuneka ukucoca isisombululo usebenzisa i-mesh mesh sieve okanye iphepha lokucoca ukususa nayiphi na into eseleyo.
  8. Gcina okanye Sebenzisa: Nje ukuba i-HPMC ichithwe ngokupheleleyo kwaye ifakwe emanzini, isisombululo silungele ukusetyenziswa. Inokugcinwa kwisitya esitywiniweyo okanye isetyenziswe ngokukhawuleza kwizicelo ezahlukeneyo ezifana namayeza, izimonyo, izinto zokwakha, okanye iimveliso zokutya.

Amanqaku:

  • Gwema ukusebenzisa amanzi anzima okanye amanzi anomxholo ophezulu wamaminerali, njengoko kunokuchaphazela inkqubo yokuchithwa kunye nokusebenza kwesisombululo se-HPMC.
  • Ixesha lokuchithwa kunye nobushushu bunokwahluka ngokuxhomekeka kwibakala elithile, ubungakanani beqhekeza, kunye nebakala le-viscosity ye-HPMC powder esetyenzisiweyo.
  • Ngalo lonke ixesha ulandela iingcebiso zomenzi kunye nezikhokelo zokulungiselela izisombululo ze-HPMC, njengoko amabanga ahlukeneyo anokuba neemfuneko ezithile zokupheliswa.

Ixesha lokuposa: Feb-15-2024
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