I-Cellulose Ether Esheshayo/Encibilika Kancane (Ukwelashwa kwendawo)

I-Cellulose Ether Classification

I-Cellulose ether yitemu elivamile lochungechunge lwemikhiqizo ekhiqizwa ukusabela kwe-alkali cellulose kanye ne-etherifying agent ngaphansi kwezimo ezithile. Lapho i-alkali cellulose ithathelwa indawo ama-ejenti e-etherifying ahlukene, kuzotholakala ama-cellulose ether ahlukene.

Ngokuya ngezici ze-ionization zama-substituents, ama-cellulose ether angahlukaniswa abe izigaba ezimbili: i-ionic (njenge-carboxymethyl cellulose) kanye ne-nonionic (njenge-methyl cellulose).

Ngokohlobo lwe-substituent, i-cellulose ether ingahlukaniswa ibe i-monoether (efana ne-methyl cellulose) ne-ether exutshiwe (njenge-hydroxypropyl methyl cellulose).

Ngokuvumelana ne-solubility ehlukene, ingahlukaniswa ibe ukunyibilika kwamanzi (okufana ne-hydroxyethyl cellulose) kanye ne-organic solvent solubility (njenge-ethyl cellulose).

Ama-ether e-cellulose ancibilika emanzini asetshenziswa odakeni oluxutshwe okomile ahlukaniswa abe ama-ether e-cellulose ancibilika ngokushesha kanye nangaphezulu ancibilika ancibilika.

Ukuphi umehluko wabo? Futhi ungayilungisa kanjani kahle ibe yisisombululo samanzi esingu-2% sokuhlolwa kwe-viscosity?

Kuyini ukwelashwa okungaphezulu?

Umthelela ku-cellulose ether?

kuqala

Ukwelashwa okungaphezulu kuyindlela yokwenza ungqimba olungaphezulu endaweni engaphezulu kwesisekelo esinezinto zomshini, zomzimba nezekhemikhali ezihlukile kulezo zesisekelo.

Inhloso yokwelashwa okungaphezulu kwe-cellulose ether iwukubambezela isikhathi sokuhlanganisa i-cellulose ether namanzi ukuze kuhlangatshezwane nezimfuneko zokujiya kancane kwezinye izigxobo zikapende, kanye nokwandisa ukumelana nokugqwala kwe-cellulose ether nokuthuthukisa ukuzinza kwesitoreji.

Umehluko lapho amanzi abandayo elungiswa ngesixazululo esinamanzi esingu-2%:

I-ether ye-cellulose ehlanjululwe phezulu ingahlakazeka ngokushesha emanzini abandayo futhi akulula ukuhlanganisa ngenxa ye-viscosities yayo ehamba kancane;

I-Cellulose ether ngaphandle kokwelashwa okungaphezulu, ngenxa ye-viscosity yayo esheshayo, izoba ne-viscous ngaphambi kokuba ihlakazwe ngokuphelele emanzini abandayo, futhi ijwayele ukuhlangana.

Ilungiswa kanjani i-cellulose ether engaphekiwe?

1. Okokuqala faka inani elithile le-cellulose ether engafakwanga ebusweni;

2. Bese wengeza amanzi ashisayo cishe ngama-degrees Celsius angaba ngu-80, isisindo siyingxenye eyodwa kwezintathu yomthamo wamanzi adingekayo, ukuze ikwazi ukuvuvukala ngokugcwele futhi ihlakazeke;

3. Okulandelayo, kancane kancane uthele emanzini abandayo, isisindo siyizingxenye ezimbili kwezintathu zamanzi asele adingekayo, qhubeka ugoqa ukuze uwenze unamathele kancane, futhi ngeke kube khona i-agglomeration;

4. Ekugcineni, ngaphansi kwesimo sesisindo esilinganayo, sibeke endaweni yokugeza yamanzi okushisa okuqhubekayo kuze kube yilapho izinga lokushisa lehla lifika ku-20 degrees Celsius, bese ukuhlolwa kwe-viscosity kungenziwa!