IHydroxyethyl Cellulose (HEC) Inemisebenzi eminingi, ehlanganisa: ukujiya, ukumisa okwesikhashana, ukubopha, ukuhlanganisa, ukwenza ifilimu, ukusimamisa, ukuhlakaza, ukugcina amanzi, kanye nokwenza ama-colloid okuvikela.Incibilika ngokwedlulele emanzini ashisayo noma abandayo, ingakhiwa ibe yizixazululo ezinhlobonhlobo zama-viscosities, futhi inokumelana okuhle kakhulu nama-electrolyte ancibilikisiwe.
indlela yokuqala)
Engeza ngokuqondile lapho ugaya i-pigment:
1. Engeza amanzi ahlanzekile afanelekile ebhakedeni elikhulu elifakwe i-agitator ephezulu (ngokuvamile, i-ethylene glycol, i-ejenti yokumanzisa kanye ne-ejenti yokwenza ifilimu yengezwe kulesi sinyathelo).
2. Qala ukunyakazisa ngokuqhubekayo ngesivinini esiphansi futhi kancane kancane uhlunga i-hydroxyethyl cellulose ngokulinganayo esixazululo.
3. Qhubeka ugqugquzela kuze kube yilapho zonke izinhlayiya sezicwile.
4. Bese wengeza i-ejenti ye-antifungal, izithasiselo ze-alkaline ezifana ne-pigment dispersing aids, amanzi e-ammonia.
5. Gcoba kuze kube yilapho yonke i-cellulose ye-hydroxyethyl ichitheka ngokuphelele (i-viscosity yesisombululo ikhula kakhulu) ngaphambi kokwengeza ezinye izingxenye kufomula, futhi ugaye kuze kube upende.
Indlela Yesibili)
Ifakwe utshwala bomama ukuze busetshenziswe:
Le ndlela iwukuba kuqala ulungise utshwala bomama obunokugxila okuphezulu, bese uyifaka kupende we-latex.Inzuzo yale ndlela yukuthi inokuguquguquka okukhulu futhi ingafakwa ngokuqondile kupende ophelile, kodwa isitoreji esifanele siyadingeka.Izinyathelo zifana nezinyathelo 1-4 ngendlela (1), umehluko wukuthi asikho isidingo se-agitator ephezulu-shear, futhi kuphela ama-agitator athile anamandla anele ukugcina i-hydroxyethyl cellulose ihlakazeke ngokufanayo kwisixazululo ingasetshenziswa. .Qhubeka ugqugquzela njalo kuze kube yilapho uncibilika ngokuphelele kusixazululo se-viscous.Kumele kuqashelwe ukuthi i-ejenti ye-antifungal kufanele yengezwe kugologo kamama ngokushesha ngangokunokwenzeka.
Indlela (3)
Okwephenology efana nephalishi:
Njengoba izincibilikisi zemvelo zingama-solvents ampofu e-hydroxyethyl cellulose, lezi zinyibilikisi eziphilayo zingasetshenziswa ukulungisa iphalishi.Izincibilikisi eziphilayo ezisetshenziswa kakhulu uketshezi lwemvelo olufana ne-ethylene glycol, i-propylene glycol, kanye nezakhi zefilimu (isb., i-hexanediol noma i-Butyl CARBITOL acetate) ekwenziweni kopende.Amanzi eqhwa nawo awancibiliki kahle, ngakho-ke amanzi eqhwa avame ukusetshenziswa noketshezi oluphilayo ukuze kulungiswe iphalishi.
I-hydroxyethyl cellulose efana nephalishi ingafakwa ngokuqondile kupende.I-hydroxyethyl cellulose ivuvuke ngokwanele esimweni sephalishi.Uma yengezwe kupende, iyancibilika ngokushesha futhi ishube.Ngemuva kokungeza, kusadingeka ukuthi uqhubeke uvuselela kuze kube yilapho i-hydroxyethyl cellulose ichitheka ngokuphelele futhi iyunifomu.
Ngokuvamile, iphalishi lixutshwe nezingxenye eziyisithupha ze-organic solvent noma amanzi eqhwa kanye nengxenye eyodwa ye-hydroxyethyl cellulose.Ngemva kwemizuzu emi-5-30, i-hydroxyethyl cellulose izokwenziwa i-hydrolyzed futhi ivuvuke ngokusobala.Ehlobo, izinga lokushisa lamanzi liphezulu kakhulu, futhi alifaneleki i-porridge.
Izinto ezidinga ukunakwa lapho kulungiswa utshwala bomama be-hydroxyethyl cellulose:
I-Hydroxyethyl cellulose imvamisa iyimpushana egayiwe kanye nezinto eziyimbudumbudu.Uma nje lezi zindaba ezilandelayo ziphawulwa, kulula ukuphatha nokuncibilika emanzini.
1. Ngaphambi nangemva kokwengeza i-hydroxyethyl cellulose, qhubeka ugqugquzela kuze kube yilapho ikhambi libonakala ngokuphelele futhi licacile.
2. Kumele ihlungwe emgqonyeni wokuxuba kancane.Ungafaki ngokuqondile i-hydroxyethyl cellulose eyakheke yaba izigaxa noma amabhola emgqonyeni wokuxuba.
3. Izinga lokushisa lamanzi kanye nenani le-pH lamanzi linobudlelwano obusobala nokuqedwa kwe-hydroxyethyl cellulose, ngakho-ke kufanele kuqashelwe ngokukhethekile.
4. Ungalokothi wengeze izinto ezine-alkali engxubeni ngaphambi kokuba i-hydroxyethyl cellulose powder icwiliswe ngamanzi.Ukwenyusa i-pH kuphela ngemuva kokumanzisa kuzosiza ekuncibilikeni.
5. Ngokusemandleni akho, engeza i-ejenti ye-antifungal ngokushesha ngangokunokwenzeka.
6. Uma usebenzisa i-high-viscosity hydroxyethyl cellulose, ukuhlushwa kotshwala kamama akufanele kube ngaphezu kuka-2.5-3% (ngesisindo), ngaphandle kwalokho utshwala bomama buyoba nzima ukuphatha.
Isikhathi sokuthumela: Nov-15-2022