IHydroxYethyl Cellulose (I-HEC) iyi-polymer esetshenziswe kabanzi emikhakheni ehlukahlukene ngenxa yezakhiwo zayo ezihlukile njengokuqina, ukugcinwa kwamanzi kanye namakhono akha amafilimu. I-Dispending Hec ngokufanelekile ibalulekile ukuqinisekisa ukusetshenziswa kwayo okusebenzayo kuzinhlelo zokusebenza ezinjenge-Paints, izimonyo, amakhamishini, kanye nezinto zokwakha.
1. Ukuqonda i-Hydroxyethyl celtulose (HEC):
I-HEC yi-nonic, i-polymer esolulekile enamanzi etholakala ku-cellulose.
Kwakha izixazululo ezicacile emanzini, kukhombisa ukuziphatha kwe-pseudoplastic, okusho ukuthi i-visa yayo yehla ngezinga elikhulayo le-shear.
2. Ukukhetha kwe-solvent:
Amanzi yi-solvent ejwayelekile kakhulu yokuhlakazeka kwe-hec ngenxa ye-soubity yayo ephezulu.
Ukushisa kanye ne-PH ye-solvent kungathonya ukuhlakazwa kwe-HEC. Imvamisa, ukungathathi hlangothi ku-Alkaline PH kuyakhethwa.
3. Ukulungiselela okusabalalisa okuphakathi:
Sebenzisa amanzi e-deionized noma ahlutshiwe ukunciphisa ukungcola okungathinta ukuhanjiswa kwe-HEC.
Gcina izinga lokushisa elifunekayo lenqubo yokuchithwa, imvamisa lokushisa kwegumbi kuya emazingeni okushisa aphakeme (cishe ngo-20-40 ° C).
4. Amasu wokuhlakazeka:
a. Ukuxuba Kwezandla:
- Ilungele izinhlelo zokusebenza ezincane.
- Kancane kancane engeza i-helc ye-HEC kwi-solvent ngenkathi ivuselela ngokuqhubekayo ukuvikela ukuqina.
- Qinisekisa ukumanzisa ngokuphelele i-powder ngaphambi kokukhulisa amandla okuxuba.
b. Ukuvuselelwa Kwemishini:
- Sebenzisa isivuno semishini esifakwe nge-blade noma impeller efanelekile.
- Lungisa ijubane elivuselelayo ukufezekisa ukuhlakazeka okufanayo ngaphandle kokudala amagwebu noma ukufakwa komoya.
c. Ukuxuba okuphezulu okuphezulu:
- Sebenzisa ama-mixers aphezulu ane-shear njengama-homogenizer noma abahlabezayo abaphezulu ngokuhlakazeka okusebenzayo.
- Lawula isilinganiso se-Shear ukuvikela ukonakala kwama-molekyuli we-hec.
d. I-Ultrasonication:
- Sebenzisa amandla e-ultrasonic ukwehlisa ama-agglomerates futhi uthuthukise ukusakazwa.
- Lungiselela amapharamitha we-sonication (imvamisa, amandla, ubude) ukugwema ukweqisa noma ukucekelwa phansi kwesisombululo.
5. Amathiphu wokuhlakazeka okuphumelelayo:
Qinisekisa ukuthi i-hec powder ingezwa kancane kancane ukuvikela ukwakheka kwenqwaba.
Gwema ushintsho olungazelelwe kuzinga lokushisa noma ph ngesikhathi sokuhlakazeka, ngoba lungathinta i-HEC Solubity.
Vumela isikhathi esanele se-hydration ephelele kanye nokuhlakazeka kwezinhlayiya ze-HEC.
Qapha ukubonana ngesikhathi sokuhlakazeka ukufeza ukuvumelana okudingayo.
Sebenzisa imishini kanye namasu afanele ngokwesilinganiso kanye nezidingo zohlelo lokusebenza.
6. Ukulawulwa kwekhwalithi:
Yenza ukuhlolwa okubonakalayo kwanoma yiziphi izinhlayiya ezingakhishwe noma zokwakhiwo kwe-gel.
Kala i-Viscosity usebenzisa i-Viscometer ukuze uqinisekise ukuvumelana nezincazelo ozifunayo.
Yenza izivivinyo ze-heecological ukuze uhlole indlela yokuziphatha nokuzinza kwe-HEC Dissaverity.
7. Isitoreji nokusingathwa:
Gcina ukuhlakazwa kwe-HEC ezitsheni ezihlanzekile, ezivalwe ngokuvaliwe ukuvikela ukungcoliswa kanye nokungena komswakama.
Gwema ukuvezwa isikhathi eside kumazinga okushisa aphezulu noma ukukhanya kwelanga okuqondile, okungalimaza i-polymer.
Faka ilebula iziqukathi ngolwazi olufanele kufaka phakathi inombolo ye-batch, ukugxila, kanye nemibandela yokugcina.
8. Ukucatshangelwa Kwezokuphepha:
Landela imihlahlandlela yezokuphepha lapho uphatha i-hew powder kanye nezixazululo.
Sebenzisa imishini efanelekile yokuzivikela (i-PPE) efana namagilavu kanye nama-goggles okuphepha.
Gwema ukuphefumula kwezinhlayiya zothuli ngokusebenza endaweni enomoya omuhle noma usebenzisa isivikelo sokuphefumula uma kunesidingo.
I-Dispering hydroxyethyl cellulose ngempumelelo idinga ukucubungula ngokucophelela ukukhethwa kwe-solvent, amasu wokuhlakazeka, izindlela zokulawula ikhwalithi, kanye nezinyathelo zokuphepha. Ngokulandela le mihlahlandlela, ungaqinisekisa ukusebenza kahle nokuqina kokuhlakazwa kwe-HEC ezinhlelweni ezahlukahlukene zezimboni.
Isikhathi sePosi: Feb-18-2025