IHydroxyethyl Cellulose (HEC) iyi-polymer encibilika emanzini evame ukusetshenziswa njenge-thickener, emulsifier, stabilizer, njll.
Izinyathelo Zokuqedwa kwe-Hydroxyethyl Cellulose
Lungiselela izinto zokwakha kanye nezinto zokusebenza:
I-Hydroxyethyl Cellulose powder
I-solvent (imvamisa amanzi)
Idivayisi enyakazayo (njenge-stirrer engumshini)
Amathuluzi okulinganisa (isilinda sokulinganisa, ibhalansi, njll.)
Isitsha
Ukushisa i-solvent:
Ukuze kusheshiswe inqubo yokuhlakazwa, i-solvent ingashiswa ngendlela efanele, kodwa ngokuvamile akufanele idlule ku-50 ° C ukugwema ukuwohloka okungenzeka kokushisa. Amazinga okushisa amanzi aphakathi kuka-30°C no-50°C alungile.
Faka kancane kancane i-HEC powder:
Fafaza kancane i-HEC powder emanzini ashisayo. Ukuze ugweme i-agglomeration, yengeze ngesisefo noma uyifafaze kancane. Qinisekisa ukuthi i-HEC powder ihlakazeka ngokulinganayo ngesikhathi senqubo yokugqugquzela.
Qhubeka nokunyakazisa:
Phakathi nenqubo yokugqugquzela, qhubeka ufaka kancane kancane i-HEC powder ukuze uqinisekise ukuthi i-powder ihlakazeka ngokulinganayo emanzini. Ijubane elinyakazayo akufanele lisheshe kakhulu ukuvimbela amabhamuza nokuhlangana. Ukugqugquzela isivinini esimaphakathi kuvame ukutuswa.
Ukuqedwa okumile: Ngemva kokuhlakazwa okuphelele, ngokuvamile kudingekile ukuma isikhathi esithile (ngokuvamile amahora ambalwa noma ngaphezulu) ukuze uvumele i-HEC ukuthi ichitheke ngokuphelele futhi yakhe isisombululo esifanayo. Isikhathi sokuma sincike esisindweni samangqamuzana e-HEC kanye nokugxila kwesixazululo.
Ukulungisa i-viscosity: Uma i-viscosity idinga ukulungiswa, inani le-HEC lingakhuliswa ngokufanelekile noma lehliswe. Ngaphezu kwalokho, ingabuye ilungiswe ngokungeza ama-electrolyte, ukushintsha inani le-pH, njll.
Izinyathelo zokuqapha ekuhlakazweni
Gwema i-agglomeration: I-Hydroxyethyl cellulose kulula ukuyihlanganisa, ngakho-ke lapho wengeza impushana, qaphela ngokukhethekile ukuyifafaza ngokulinganayo. Isisefo noma esinye isisetshenziswa sokuhlakaza singasetshenziswa ukusiza ukuhlakazeka ngokulinganayo.
Ukushisa kokulawula: Ukushisa kwe-solvent akufanele kube phezulu kakhulu, ngaphandle kwalokho kungabangela ukuwohloka kokushisa kwe-HEC futhi kuthinte ukusebenza kwesisombululo. Ngokuvamile kufaneleka kakhulu ukuyilawula phakathi kuka-30°C no-50°C.
Vimbela umoya ukuthi ungangeni: Gwema ukunyakazisa ngokushesha ukuze uvimbele umoya ukuthi ungangeni esixazululo wenze amabhamuza. Amabhamuza azothinta ukufana nokucaca kwesixazululo.
Khetha umshini oshukumisayo ofanele: Khetha umshini oshukumisayo ofanele ngokuya ngokubonakala kwesixazululo. Ukuze uthole izixazululo ze-viscosity ephansi, ama-stirrers ajwayelekile angasetshenziswa; ukuze uthole izixazululo ze-viscosity ephezulu, kungase kudingeke i-stirrer eqinile.
Isitoreji nokulondolozwa:
Isixazululo se-HEC esincibilikisiwe kufanele sigcinwe esitsheni esivaliwe ukuvimbela umswakama noma ukungcola. Uma ugcinwe isikhathi eside, gwema ukukhanya kwelanga kanye nemvelo yokushisa okuphezulu ukuze uqinisekise ukuzinza kwesixazululo.
Izinkinga ezivamile nezisombululo
Ukuqedwa okungalingani:
Uma kwenzeka ukuhlakazeka okungalingani, kungenzeka ukuthi impushana ifafazwa ngokushesha kakhulu noma inyakaziswa ngendlela enganele. Isixazululo siwukuthuthukisa ukufana kokugqugquzela, ukwandisa isikhathi sokugubha, noma ukulungisa isivinini sokwengeza impushana ngesikhathi sokugubha.
Ukukhiqizwa kwebhamuza:
Uma inani elikhulu lama-bubble livela kwisixazululo, ama-bubbles angancishiswa ngokunciphisa isivinini esishukumisayo noma ukuwayeka ame isikhathi eside. Kumabhamuza asevele akhekile, i-ejenti yokukhipha umoya ingasetshenziswa noma ukwelashwa nge-ultrasonic ukuze iwasuse.
I-viscosity yesixazululo iphezulu kakhulu noma iphansi kakhulu:
Uma i-viscosity yesisombululo ingahlangabezani nezidingo, ingalawulwa ngokulungisa inani le-HEC. Ngaphezu kwalokho, ukulungisa inani le-pH namandla e-ionic esixazululo nakho kungathinta i-viscosity.
Ungakwazi ukuhlakaza ngempumelelo i-hydroxyethyl cellulose futhi uthole isixazululo esilinganayo nesizinzile. Ukwazi izinyathelo ezifanele zokusebenza nezinyathelo zokuphepha kungakhulisa umphumela we-hydroxyethyl cellulose ezinhlelweni ezahlukahlukene.
Isikhathi sokuthumela: Aug-08-2024