I-Hydroxyethyl Cellulose (HEC) iyi-polymer encibilika emanzini evame ukusetshenziswa njenge-thickener, emulsifier, stabilizer, njll.
Izinyathelo Zokuncibilikisa I-Hydroxyethyl Cellulose
Lungisa izinto zokwakha kanye nemishini:
Impuphu ye-Hydroxyethyl Cellulose
Isinyibilikisi (ngokuvamile amanzi)
Idivayisi yokuxuba (njenge-stirrer yomshini)
Amathuluzi okulinganisa (isilinda sokulinganisa, ibhalansi, njll.)
Isitsha
Ukushisa i-solvent:
Ukuze kusheshiswe inqubo yokuncibilika, isinyibilikisi singashiswa ngendlela efanele, kodwa ngokuvamile akufanele sidlule ku-50°C ukuze kugwenywe ukuwohloka okungenzeka kokushisa. Amazinga okushisa amanzi aphakathi kuka-30°C no-50°C afaneleka kakhulu.
Faka kancane kancane i-HEC powder:
Fafaza kancane kancane i-HEC powder emanzini afudumele. Ukuze ugweme ukuhlangana, yifake ngesihlungo noma uyifafaze kancane kancane. Qiniseka ukuthi i-HEC powder ihlakazeke ngokulinganayo ngesikhathi sokuxubha.
Qhubeka uvuselela:
Ngesikhathi senqubo yokuxuba, qhubeka nokufaka kancane kancane i-HEC powder ukuqinisekisa ukuthi i-powder ihlakazeka ngokulinganayo emanzini. Ijubane lokuxuba akufanele libe lishesha kakhulu ukuvimbela amabhamuza nokuhlangana. Ukuxuba ngesivinini esiphakathi kuvame ukunconywa.
Ukuncibilika Okumile: Ngemva kokuhlakazeka okuphelele, ngokuvamile kuyadingeka ukuma isikhathi esithile (ngokuvamile amahora amaningana noma ngaphezulu) ukuze i-HEC incibilike ngokuphelele futhi yakhe isixazululo esifanayo. Isikhathi sokuma sincike esisindweni sama-molecule se-HEC kanye nokuhlushwa kwesisombululo.
Ukulungisa i-viscosity: Uma i-viscosity idinga ukulungiswa, inani le-HEC lingakhushulwa noma lincishiswe ngokufanele. Ngaphezu kwalokho, lingalungiswa nangokufaka ama-electrolyte, ukushintsha inani le-pH, njll.
Izinyathelo zokuphepha ekuchithweni
Gwema ukuhlangana: I-Hydroxyethyl cellulose kulula ukuyihlanganisa, ngakho-ke uma ufaka impuphu, naka kakhulu ukuyifafaza ngokulinganayo. Isihlungo noma enye idivayisi yokuhlakaza ingasetshenziswa ukusiza ukuhlakazeka ngokulinganayo.
Izinga lokushisa lokulawula: Izinga lokushisa le-solvent akufanele libe phezulu kakhulu, ngaphandle kwalokho lingabangela ukuwohloka kokushisa kwe-HEC futhi lithinte ukusebenza kwesisombululo. Ngokuvamile kufanelekile kakhulu ukuyilawula phakathi kuka-30°C no-50°C.
Vimbela umoya ukuthi ungangeni: Gwema ukuxubha ngokushesha kakhulu ukuze uvimbele umoya ukuthi ungangeni esixazululweni ukuze wakhe amabhamuza. Amabhamuza azothinta ukufana kanye nokucaca kwesixazululo.
Khetha imishini efanele yokuxuba: Khetha imishini efanele yokuxuba ngokwe-viscosity yesisombululo. Ukuze uthole izixazululo ezinobuthi obuphansi, kungasetshenziswa ama-stirrer avamile; ukuze uthole izixazululo ezinobuthi obuphezulu, kungadingeka i-stirrer enamandla.
Ukugcinwa nokulondolozwa:
Isixazululo se-HEC esincibilikisiwe kufanele sigcinwe esitsheni esivaliwe ukuvimbela umswakama noma ukungcola. Uma sigcinwa isikhathi eside, gwema ukukhanya kwelanga okuqondile kanye nendawo eshisayo ephezulu ukuqinisekisa ukuqina kwesisombululo.
Izinkinga ezivamile kanye nezixazululo
Ukuqedwa okungalingani:
Uma kwenzeka ukuncibilika okungalingani, kungenzeka ukuthi kungenxa yokuthi i-powder ifafazwa ngokushesha kakhulu noma ingavuselelwa ngokwanele. Isixazululo ukuthuthukisa ukufana kokuxuba, ukwandisa isikhathi sokuxuba, noma ukulungisa ijubane lokufaka i-powder ngesikhathi sokuxuba.
Isizukulwane samabhamuza:
Uma kuvela inani elikhulu lamabhamuza esixazululweni, amabhamuza angancishiswa ngokunciphisa ijubane lokuxubha noma ukuwayeka ame isikhathi eside. Kumabhamuza asevele akhekile, kungasetshenziswa i-ejenti yokukhipha igesi noma ukwelashwa nge-ultrasound ukuze kususwe.
I-viscosity yesisombululo iphezulu kakhulu noma iphansi kakhulu:
Uma i-viscosity yesisombululo ingahlangabezani nezidingo, ingalawulwa ngokulungisa inani le-HEC. Ngaphezu kwalokho, ukulungisa inani le-pH kanye namandla e-ionic esisombululo nakho kungathinta i-viscosity.
Ungancibilikisa ngempumelelo i-hydroxyethyl cellulose bese uthola ikhambi elifanayo nelizinzile. Ukwazi izinyathelo zokusebenza ezifanele kanye nezinyathelo zokuphepha kungakhulisa umphumela we-hydroxyethyl cellulose ezinhlotsheni ezahlukene zokusebenza.
Isikhathi sokuthunyelwe: Agasti-08-2024