Hydroxypropyl methylcellulose (HPMC) is a semi-synthetic, inert, non-toxic water-soluble polymer widely used in industries such as medicine, food, cosmetics and building materials. Ubudlelwane obuphakathi kobunzima bayo bemolekyulu kunye nokubonisa ifuthe elinefuthe elibonakalayo kwintsebenzo yalo kwizicelo ezahlukeneyo.
I-1. Ukungasebenzi kunye neempawu zokwenza ifilimu
I-viscosity ye-HPMC ichaphazela ngokuthe ngqo ukuvela kwayo emanzini. I-HPMC ene-viscosity esezantsi inokunyibilika ngokukhawuleza kwaye yenze isisombululo esibonakalayo nesingafaniyo, esifanelekileyo kwizicelo ezifuna ukusasazeka ngokukhawuleza, ezifana neziselo ezikhoyo. I-HPMC ene-viscofity ephezulu ifuna ixesha elide lokuchitheka, kodwa linokubonelela ngobungqingqwa obungcono kunye namandla xa ibeka ifilimu, ngoko ke ifanelekile kwithebhulethi, ifilimu yokukhusela kunye nokuba sisixhobo seMatrix kwiGosarix.
2. Uzinzo kunye ne-adhesion
I-HPMC ene-viscofity ephezulu ihlala inozinzo olomeleleyo kunye nokunamathela. Umzekelo, xa isetyenziswa njenge-curickener yesamente okanye kwimveliso esekwe kwi-gypsim ekwakhiweni, i-HPMC ephezulu inokuphucula ngokugqibeleleyo ukugcinwa kwayo amanzi kunye nokunganyangeki kwe-SAG, ukunceda ukwandisa ixesha lokwakha kunye nokunciphisa ukuqhekeka. Kumzi-mveliso wamayeza, i-HPMCIty ye-HPMC ephezulu isetyenziselwa ukulawula inqanaba lokukhutshwa ngamachiza. I-adhedaon yayo ephezulu ivumela ichiza ukuba likhululwe kancinci emzimbeni kwaye liphucula ukuba i-bioaaaaaaint yeSiyobisi.
I-3. Ukumiswa kunye nokukhutshelwa
Utshintsho kwi-viscofity likwachaphazela nepropathi yokumiswa kunye nokumiswa kwe-HPMC. Ngenxa ye-molecular yayo emfutshane ye-molecular, i-HPMCIty ye-HPMC ilungele ukusetyenziswa njengearhente yokumisa. Ingamka ngokufanelekileyo izinto ezinganyikithi kwiziyobisi ezingamanzi kwiziyobisi kwaye zithintele ububanzi. I-HPMC ene-viscofity ephezulu inokwenza ubume benethiwekhi enamandla kwisisombululo ngenxa ye-molecular yayo yemolekyuli, ke yenza ngcono ukwenzelwa kwee-eulssions kunye nokunqunyanyiswa kwaye kungagcina ukufa kwexesha elide.
I-4. I-Hheeology kunye nePropathi yokusebenza
Ipropathi ye-ROOILL ye-HPMC ibalulekile echaphazelekayo. IZisombululo ze-HPMC ze-HPMC ze-HPMC ezibonakalisa ulwalamano olungcono, kulula ukutshiza kwaye zisebenze, kwaye zihlala zisetyenziswa kwiimveliso zonyango kunye neepeyinti. Isisombululo se-HPMC esiphakamileyo se-HPMC siziphethe kakubi njenge-fluid fluid kwaye ineempawu ezityebileyo. Olu phawu lwenza ukuba i-HPMC ephezulu ilula ukuyiphatha phantsi kweemeko eziphezulu ze-Shear, ngelixa igcina i-viscofity ephezulu phantsi kweemeko eziqinisekileyo, ngaloo ndlela iphucule ifilimu kunye nokuzinza kwemveliso.
5. Imizekelo yesicelo
Intsimi yamachiza: I-HPMCIT ye-HEPMC (ezinje nge-50 cps) ihlala isetyenziselwa ukukhululwa kweziyobisi ngokukhawuleza amachiza, ngelixa i-HPMC ephezulu isetyenziselwa ukulungisa i Ixabiso lokukhupha iziyobisi.
Intsimi yokutya: Kwiziselo zakhawuleziswa, i-HPMOTION ye-HPMC inokuthi inyibilike ngokukhawuleza ngaphandle kokuphosa; Kwiimveliso ezibhakiweyo, i-HPMCIty ye-HPMC ephezulu inokuphucula amandla aphezulu kwenhlama kwaye aphucule incasa kunye nokunyibilikisa iipropathi zemveliso ezibhakiweyo.
Intsimi yokwakha: Kwi-fapties kunye neengubo kunye ne-HPMCIty ye-HPMC ye-HPMC iququzelela ukwakhiwa kwaye iphucule ukusebenza kakuhle emsebenzini; Ngelixa i-HPMC ephezulu ye-HPMC ixhasa ubukhulu kunye nokuchasana kwe-SAG yokudibana.
Uhlobo lwe-HPMC yiparamitha ephambili echaza intsebenzo yayo kwizicelo. I-HPMMC ye-HPMPIty ye-HPMC iqhele ukusetyenziswa apho ukutshitshiswa ngokufihla ngokukhawuleza kunye nokuhamba kwentyatyambo kuyafuneka, ngelixa i-HPMC ephezulu ye-HPMC iluncedo ngakumbi kwizicelo ezifuna ububi obuphezulu, ukwenziwa kweefilimu kunye nozinzo. Ke ngoko, ukukhetha i-HPMC ngophawu olusekunene kubalulekile ukuba lukukhuthaza ukusebenza kwalo kwiinkalo ezahlukeneyo.
Ixesha lokuphumla: Jul-08-2024