I-Hydroxyethyl cellulose

IHydroxyethyl cellulose (HEC) iyi-fibrous emhlophe noma ekhanyayo, engenaphunga, eqinile engenabuthi noma eyimpuphu elungiswe ngokufakwa kwe-alkaline cellulose ne-ethylene oxide (noma i-chlorohydrin). I-Nonionic soluble cellulose ethers. Ngenxa yokuthi i-HEC inezakhiwo ezinhle zokuqina, ukumisa, ukuhlakazeka, ukufakwa kwe-emulsifying, ukubopha, ukwenza ifilimu, ukuvikela umswakama nokuhlinzeka ngama-colloid avikelayo, iye yasetshenziswa kabanzi ekuhloleni amafutha, ukugqoka, ukwakhiwa, imithi nokudla, izindwangu, ukwenza amaphepha kanye nama-polymers. I-polymerization nezinye izinkambu. I-Hydroxyethyl cellulose ayizinzile ezingeni lokushisa elivamile nokucindezela, igwema umswakama, ukushisa, nezinga lokushisa eliphezulu, futhi inokuncibilika okuhle kakhulu kukasawoti kuma-dielectrics. Isixazululo saso samanzi sivunyelwe ukuqukatha ukugxila okuphezulu kosawoti futhi sizinzile.

Iziyalezo
Joyina ngokuqondile ekukhiqizeni

1. Faka amanzi ahlanzekile ebhakedeni elikhulu elifakwe i-blender high-shear.

2. Qala ukunyakazisa ngokuqhubekayo ngesivinini esiphansi bese uhlunga kancane kancane i-hydroxyethyl cellulose esixazululweni ngokulinganayo.

3. Qhubeka ugqugquzela kuze kube yilapho zonke izinhlayiya sezicwile.

4. Bese wengeza ama-antifungal agents, izithasiselo ze-alkaline ezifana nezingulube, izinsiza ezihlakazayo, amanzi e-ammonia.

5. Hlanganisa kuze kube yilapho yonke i-cellulose ye-hydroxyethyl ichitheka ngokuphelele (i-viscosity yesisombululo ikhula kakhulu) ngaphambi kokwengeza ezinye izingxenye kufomula, futhi ugaye kuze kube umkhiqizo ophelile.

Ifakwe utshwala bukamama

Le ndlela iwukuba kuqala ulungise utshwala omama ngokugxila okuphezulu, bese uyifaka kupende we-latex. Inzuzo yale ndlela yukuthi inokuguquguquka okukhulu futhi ingafakwa ngokuqondile kupende ophelile, kodwa kufanele igcinwe kahle. Izinyathelo zifana nezinyathelo 1-4 endleleni 1, ngaphandle kokuthi ukugqugquzela okuphezulu akudingekile ukuhlakazeka ngokuphelele kusixazululo se-viscous.

Qaphela
Njengoba i-hydroxyethyl cellulose ehlanjululwe phezulu iyimpushana noma i-cellulose eqinile, kulula ukuyiphatha futhi incibilike emanzini inqobo nje uma lezi zindaba ezilandelayo ziphawulwa.

1. Ngaphambi nangemva kokwengeza i-hydroxyethyl cellulose, kufanele iqhubeke inyakaziswa kuze kube yilapho isisombululo sisobala ngokuphelele futhi sicacile.

2. Kumele ihlungwe emgqonyeni wokuxuba kancane. Ungafaki ngokuqondile i-hydroxyethyl cellulose eyakheke yaba izigaxa noma amabhola emgqonyeni wokuxuba ngobuningi noma ngokuqondile.

3. Izinga lokushisa lamanzi kanye nenani le-pH lamanzi linobudlelwano obubalulekile nokuqedwa kwe-hydroxyethyl cellulose, ngakho-ke kufanele kuqashelwe ngokukhethekile.

4. Ungalokothi wengeze izinto ezine-alkali engxubeni ngaphambi kokuba i-hydroxyethyl cellulose powder ifudunyezwe ngamanzi. Ukuphakamisa inani elingu-PH ngemva kokufudumala kuyasiza ekuhlakazweni.

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%, ngaphandle kwalokho utshwala bomama kunzima ukusebenza. I-hydroxyethyl cellulose ngemuva kokwelashwa ngokuvamile akulula ukwenza izigaxa noma ama-sphere, futhi ngeke yakhe ama-colloid ayindilinga angancibiliki ngemva kokungeza amanzi.