I-Hydroxyethyl Cellulose (HEC) yipolymer enyibilikayo emanzini edla ngokusetyenziswa njenge-thickener, emulsifier, stabilizer, njl.
I-Hydroxyethyl Cellulose Amanyathelo okuchithwa
Lungiselela imathiriyeli kunye nezixhobo:
I-Hydroxyethyl Cellulose powder
Isinyibilikisi (ngokuqhelekileyo amanzi)
Isixhobo sokubetha (esifana nesivusi somatshini)
Izixhobo zokulinganisa (i-cylinder yokulinganisa, ibhalansi, njl.)
Isingxobo
Ukufudumeza isinyibilikisi:
Ukukhawulezisa inkqubo yokuchithwa, i-solvent inokufudumeza ngokufanelekileyo, kodwa ngokuqhelekileyo akufanele idlule i-50 ° C ukuphepha ukuthotywa kwe-thermal kunokwenzeka. Amaqondo obushushu bamanzi aphakathi kwe 30°C kunye nama 50°C afanelekile.
Yongeza kancinci i-HEC umgubo:
Kancinci ufefe umgubo weHEC emanzini ashushu. Ukuthintela i-agglomeration, yongeza nge-sieve okanye ufefe ngokukhawuleza. Qinisekisa ukuba i-HEC powder ihlakazeke ngokulinganayo ngexesha lenkqubo yokuvuselela.
Qhubeka ushukumisa:
Ngethuba lenkqubo yokuvuselela, qhubeka ngokukhawuleza ukongeza i-HEC powder ukuqinisekisa ukuba i-powder ihlakazeke ngokulinganayo emanzini. Isantya esishukumisayo akufuneki sikhawuleze kakhulu ukuthintela amaqamza kunye ne-agglomeration. Ukushukumisa isantya esiphakathi kuyacetyiswa.
Ukutshatyalaliswa okumileyo: Emva kokusabalalisa okupheleleyo, ngokuqhelekileyo kuyimfuneko ukuma ixesha elithile (ngokuqhelekileyo iiyure eziliqela okanye ngaphezulu) ukuvumela i-HEC ukuba ichithe ngokupheleleyo kwaye yenze isisombululo esifanayo. Ixesha lokuma lixhomekeke kubunzima be-molecular of HEC kunye nokugxininiswa kwesisombululo.
Ukulungelelanisa i-viscosity: Ukuba i-viscosity idinga ukulungiswa, isixa se-HEC sinokunyuswa ngokufanelekileyo okanye sincitshiswe. Ukongeza, inokulungelelaniswa ngokongeza i-electrolytes, ukutshintsha ixabiso le-pH, njl.
Izilumkiso ekuchithweni
Kuphephe i-agglomeration: I-Hydroxyethyl cellulose kulula ukuyidibanisa, ngoko xa ufaka umgubo, nikela ingqalelo ekhethekileyo ukuyifefa ngokulinganayo. Isisefu okanye esinye isixhobo sokusasaza singasetyenziselwa ukunceda ngokulinganayo ukusasazeka.
Ukushisa kokulawula: Ukushisa kwe-solvent akufanele kube phezulu kakhulu, ngaphandle koko kunokubangela ukuthotywa kwe-thermal ye-HEC kwaye kuchaphazele ukusebenza kwesisombululo. Kudla ngokufaneleka ngakumbi ukuyilawula phakathi kwama-30°C nama-50°C.
Thintela ukungena komoya: Kuphephe ukushukumisa ngokukhawuleza ukuthintela umoya ekungeneni kwisisombululo ukwenza amaqamza. I-Bubbles iya kuchaphazela ukufana kunye nokucaca kwesisombululo.
Khetha isixhobo esilungileyo sokuvuselela: Khetha isixhobo esilungileyo sokuxhoma ngokuhambelana ne-viscosity yesisombululo. Kwizisombululo ze-viscosity ephantsi, ii-stirrers eziqhelekileyo zingasetyenziswa; kwizisombululo eziphezulu ze-viscosity, i-stirrer eyomeleleyo inokufuneka.
Ukugcinwa kunye nokugcinwa:
Isisombululo se-HEC esichithwayo kufuneka sigcinwe kwisitya esivaliweyo ukukhusela umswakama okanye ukungcola. Xa ugcinwe ixesha elide, gwema ukukhanya kwelanga kunye nendawo yokushisa ephezulu ukuqinisekisa ukuzinza kwesisombululo.
Iingxaki eziqhelekileyo kunye nezisombululo
Ukupheliswa okungalinganiyo:
Ukuba unyibiliko olungalinganiyo lwenzeka, kungenxa yokuba umgubo ufefa ngokukhawuleza kakhulu okanye ushukunyiswe ngokungonelanga. Isisombululo kukuphucula ukufana kokuvuselela, ukwandisa ixesha lokuvuselela, okanye ukulungelelanisa isantya sokongeza umgubo ngexesha lokuvuselela.
Ukuveliswa kwebhamuza:
Ukuba inani elikhulu leebhubhu livela kwisisombululo, iibhubhu zinokuncitshiswa ngokunciphisa isantya sokuvuselela okanye ukuyivumela ukuba ime ixesha elide. Kwiibhubhu esele zenziwe, i-agent ye-degassing ingasetyenziselwa okanye unyango lwe-ultrasonic lungasetyenziselwa ukususa.
I-viscosity yesisombululo iphezulu kakhulu okanye iphantsi kakhulu:
Xa i-viscosity yesisombululo ingahambelani neemfuno, inokulawulwa ngokulungelelanisa inani le-HEC. Ukongezelela, ukulungiswa kwexabiso le-pH kunye namandla e-ionic yesisombululo kunokuchaphazela i-viscosity.
Unokunyibilikisa ngokufanelekileyo i-hydroxyethyl cellulose kwaye ufumane isisombululo esifanayo kunye nesizinzileyo. Ukuqonda amanyathelo achanekileyo okusebenza kunye nezilumkiso kunokwandisa isiphumo se-hydroxyethyl cellulose kwizicelo ezahlukeneyo.
Ixesha lokuposa: Aug-08-2024