Ungayisebenzisa kanjani i-hydroxyethyl cellulose kupende we-latex
1. I-Hydroxyethyl cellulose isetshenziselwa ukulungisa iphalishi: Njengoba i-hydroxyethyl cellulose ingelula ukuncibilika ezincibilikisweni zemvelo, ezinye izinyibilikisi zemvelo zingasetshenziswa ukulungisa iphalishi.Amanzi eqhwa nawo awancibiliki kahle, ngakho-ke amanzi eqhwa avame ukusetshenziswa noketshezi oluphilayo ukuze kulungiswe iphalishi.I-hydroxyethyl cellulose efana nephalishi ingafakwa ngokuqondile kupende we-latex.I-hydroxyethyl cellulose isivuvukele ngokuphelele ephalishini.Uma yengezwe kupende, ihlakazeka ngokushesha futhi idlala indima yokuqina.Ngemuva kokungeza, kusadingeka ukuthi uqhubeke ugqugquzela kuze kube yilapho i-hydroxyethyl cellulose ihlakazeka ngokuphelele futhi ichitheka.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.(Kuphakanyiswa ukuthi umswakama wamanzi ajwayelekile uphezulu kakhulu ehlobo, ngakho-ke akufanelekile ukusetshenziselwa uphuthu.)
2. Faka i-hydroxyethyl cellulose ngokuqondile lapho ugaya i-pigment: Le ndlela ilula futhi ithatha isikhathi esincane.Indlela enemininingwane imi kanje:
(1) Engeza amanzi ahlanzekile afanelekile ku-vat ye-agitator esike kakhulu (ngokuvamile, izinsiza zokwakha ifilimu kanye nezinto zokumanzisa ziyengezwa ngalesi sikhathi)
(2) Qala ukunyakazisa ngokuqhubekayo ngesivinini esiphansi futhi kancane kancane futhi ngokulinganayo wengeze i-hydroxyethyl cellulose
(3) Qhubeka ugqugquzela kuze kube yilapho zonke izinhlayiya zihlakazeka ngokulinganayo futhi zicwile
(4) Engeza izithasiselo ze-antifungal ukuze ulungise inani le-PH
(5) Hlanganisa kuze kube yilapho yonke i-cellulose ye-hydroxyethyl ichitheka ngokuphelele (i-viscosity yesisombululo ikhula kakhulu), bese wengeza ezinye izingxenye kufomula, futhi ugaye kuze kube yilapho iba upende.
3. Lungiselela i-hydroxyethyl cellulose ngotshwala kamama ukuze uyisebenzise: Le ndlela iwukulungisa ugologo kamama ngokugxila kakhulu kuqala, bese ubufaka kupende we-latex.Inzuzo yale ndlela yukuthi iguquguqukayo futhi ingafakwa ngokuqondile kupende ophelile, kodwa idinga ukugcinwa kahle..Izinyathelo nezindlela ziyafana nezinyathelo (1)-(4) endleleni yesi-2, umehluko wukuthi asikho isidingo se-high-shear agitator, futhi ama-agitator athile kuphela anamandla anele okugcina imicu ye-hydroxyethyl ihlakazeke ngokufana isixazululo zisetshenziswa.Angakwazi.Qhubeka ugqugquzela njalo kuze kube yilapho uncibilika ngokuphelele kusixazululo se-viscous.Kumele kuqashelwe ukuthi i-ejenti ye-antifungal kufanele yengezwe kutshwala kamama wepende ngokushesha ngangokunokwenzeka.
4 Izinto ezidinga ukunakwa lapho kulungiswa utshwala bomama be-hydroxyethyl cellulose
Njengoba i-hydroxyethyl cellulose iyimpushana ecutshungulwayo, kulula ukuyiphatha futhi ichithe emanzini inqobo nje uma lezi zindaba ezilandelayo ziphawulwa.
(1) Ngaphambi nangemuva kokwengeza i-hydroxyethyl cellulose, kufanele igcinwe inyakaza kuze kube yilapho isixazululo sesobala ngokuphelele futhi sicacile.
(2) Kumelwe ihlungwe emgqonyeni wokuxuba kancane kancane.Ungafaki ngokuqondile i-hydroxyethyl cellulose eyakheke yaba izigaxa namabhola emgqonyeni wokuxuba ngobuningi noma ngokuqondile.
(3) Izinga lokushisa lamanzi kanye nenani le-pH emanzini kuhlobene kakhulu nokuqedwa kwe-hydroxyethyl cellulose, ngakho-ke kufanele kuqashelwe ngokukhethekile.
(4) Ungangezi ezinye 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, ukugcwala kotshwala kamama akumele kube ngaphezu kuka-2.5-3% (ngesisindo), ngaphandle kwalokho utshwala bukamama buyoba nzima ukubuphatha.
Izici ezithinta i-viscosity kapende we-latex:
(1) Umswakama ushisa ngokweqile ngesikhathi sokuhlakazeka ngenxa yokunyakazisa ngokweqile.
(2) Umthamo wezinye izingqimba zemvelo kanye nesilinganiso somthamo we-hydroxyethyl cellulose kufomula kapende.)
(3) Ukuthi inani le-surfactant nenani lamanzi kufomula kapende kufanelekile.
(4 Lapho uhlanganisa i-latex, inani le-catalyst eyinsalela namanye ama-oxide.
5 Ukuguguleka kwe-Microbial of thickeners.
6 Ngesikhathi sokwenza upende, ingabe ukulandelana kwezinyathelo zokwengeza ama-thieners kufanelekile?
7 Uma kuphakeme okuqukethwe kwamabhamuza omoya asele kupende, i-viscosity iyanda
Isikhathi sokuthumela: Nov-02-2022