Yiziphi izinhlobo ezahlukene ze-hydroxyethyl cellulose (HEC)?

IHydroxYethyl Cellulose (I-HEC) iyindawo eboshwe ngamanzi polymer etholwe ukuguqulwa kwamakhemikhali kwe-cellulose yemvelo. Kusetshenziswa kabanzi ku-Coatings, amakhemikhali nsuku zonke, izinto zokwakha kanye nezinye izinkambu. Izinhlobo ezahlukahlukene ze-HEC zihlukaniswa ikakhulukazi ngamapharamitha afana ne-degree yokufaka esikhundleni (DS), i-MORETETIOR (MS), i-Viscosity, njll.

1. Ukuhlukaniswa ngezinga lokufaka esikhundleni

Izinga lokufaka esikhundleni (DS) lisho inani eliphakathi lamaqembu ama-hydroxyethyl kuyunithi ngalinye le-glucose. Izinguquko ku-DS zizothinta i-solubity, i-viscosity kanye nezindawo zohlelo lokusebenza lwe-HEC.
Izinga eliphansi lokufaka esikhundleni se-HEC: I-DS ingaphansi kwe-1.0. I-degree ephansi yokufaka esikhundleni se-hec ine-solubility ephansi futhi ivame ukusetshenziswa ezindaweni ezidinga ukumelana okuthile kwamanzi, njengezinto zokwakha kanye nezinto zokwakha.
I-Medium degree yokufaka esikhundleni HEC: I-DS iphakathi kuka-1.0 no-2.0. Lolu hlobo lwe-HEC lunamanzi amahle e-solubility kanye nokubonakala okuphezulu, futhi kuvame ukusetshenziswa emikhiqizweni yansuku zonke yamakhemikhali (njengezihlanzi kanye nezimonyo), ukugqoka kanye nama-emulsions.
I-degree ephezulu yokufaka esikhundleni i-HEC: I-DS ingaphezulu kwe-2.0. Lolu hlobo lwe-HEC lunamanzi aphezulu amanzi futhi luvame ukusetshenziswa kuzinhlelo zokusebenza ezidinga ukucaca okuphezulu nokubonakala okuphezulu, okufana namaconsi wamehlo, njll.

2. Ukuhlukaniswa yi-Moolar Exgqopwini
I-MOOR ExpareITITIT (MS) ibhekisela kwinani eliphakathi lamaqembu ama-hydroxyethyl kuyunithi ngalinye le-glucose, kepha kufaka phakathi ukusabela kwezinyathelo eziningi okwenzeka ngesikhathi sokumiswa kokumiswa. Inani eliphakeme le-MS, elingcono i-solubility yamanzi kanye nezinga lokuchithwa kwe-HEC ngokuvamile.
Ukungena esikhundleni kwe-molar ephansi HEC: I-MS ingaphansi kwe-1. Lolu hlobo lwe-HEC lunesilinganiso esibi sokuchithwa futhi lungadinga amazinga okushisa aphezulu noma izikhathi ezivusa amade. Ilungele izinhlelo zokusebenza ezidinga ukuqedwa okubambezelekile noma ukukhishwa okulawulwayo.
I-Medium Molar Equation HEC: I-MS iphakathi kuka-1 no-2. Inezinga elilinganiselwe lokuchithwa futhi lisetshenziswa kabanzi kumakhemikhali nsuku zonke, ukumboza, kanye nokwakha.
I-High Molar Equition HEC: I-MS inkulu kune-2. Inezinga lokuchithwa ngokushesha kanye ne-solubility enhle kakhulu, futhi ilungele izinhlelo zokusebenza ezidinga izixazululo ezisheshayo noma izimonyo kanye namalungiselelo athile ezokwelashwa.

3. Ukuhlukaniswa nge-Viscosity
I-viscosity ye-HEC iyinkomba ebalulekile yokluwo-nzalo ngesixazululo, imvamisa ngokususelwa ku-dilution (okuhlushwa) kwesixazululo kanye nezimo zokulinganisa (ezifana nezinga le-shear).
Ukuvuleka okuphansi kwe-HEC: I-viscosity esixazululweni esingu-1% ingaphansi kwe-1000 MPA. I-Viscosity ephansi ilungele ukusetshenziswa njenge-ejenti yokulawula i-Rheology, i-dispersant kanye nokugcotshwa, futhi isetshenziswa kabanzi emikhiqizweni yansuku zonke yamakhemikhali, imboni yokudla, namalungiselelo athile amakhamithi.
I-HEVOSI YAMANDLA ESINYE: I-Viscosity esixazululweni esingu-1% iphakathi kuka-1000 no-4000 MPA S. I-Heality Volivesite Medium isetshenziswa kabanzi ekuhlolweni, ekunamathisineni, ama-inks wokuphrinta, kanye nezimboni zokwakha, ukuhlinzeka ngemiphumela emihle yokuqina kanye nokulawulwa kwe-Rheology.
I-Viscosity ephezulu: I-viscosity esikhaleni esingu-1% iphakeme kune-4000 MPA. I-Viscosity ephezulu isetshenziswa kakhulu njenge-sikhulu ne-stabilizer, efanelekile amasimu adinga ukubonakala okuphezulu nokubonakala okuphezulu, njengezimbobo eziphakeme, izimonyo kanye nezicelo ezithile ezikhethekile zezimboni.

4. Ukuhlukaniswa ngefomu lomkhiqizo
I-HEC nayo ingahlukaniswa ngokwesimo sayo somzimba, esivame ukusisebenzisa isicelo sayo nokusingathwa.
I-HEC efakwe yimpuphu: Ifomu elijwayelekile kakhulu, kulula ukuhambisa nokugcina. Isetshenziswa kuzinhlelo zokusebenza zamakhemikhali zezimboni eziningi kanye nezinsuku zansuku zonke, idinga ukuxutshwa ngamanzi ukwakha ikhambi.
I-Granur HEC: I-Granur HEC kulula ukuyiphatha futhi ichithe kune-HEC eyimpuphu, ukunciphisa izinkinga zothuli futhi ilungele ukukhiqizwa kwezimboni ezinkulu.
I-HEC yohlobo lwe-Solution: Kwezinye izinhlelo zokusebenza eziphezulu, i-HEC ingahlinzekwa ngokuqondile kusixazululo sefomu lesisombululo, esilungele ukusetshenziswa okuqondile futhi inciphisa isikhathi sokuchithwa, njengakwezinye izimonyo nemikhiqizo yezemithi.

5. I-HEC ekhethekile esebenzayo
Kukhona futhi ama-hec athile aqhutshwa ngokwengeziwe ngamakhemikhali noma aphathwe ngokomzimba ukuze ahlangabezane nezidingo zohlelo oluthile.
I-Creased HEC: Ukumelana kwamanzi kwe-HEC kanye nezakhiwo zemishini zithuthukiswa yi-Chemical Crosslinking, futhi kufanelekile ngezikhathi ezidinga amandla aphezulu nokuqina.
I-HEC eguquliwe: Ukuguqulwa okuqhubekayo (okufana ne-carboxmetylation, phosphorylation, njll.) Kwenziwa ngesisekelo se-HEC ukuyinika imisebenzi eminingi, ukumelana nokushisa noma ukunamathela.
I-HEC ehlanganisiwe: Ihlanganiswe nabanye abakhulu noma izinto ezisebenzayo ukuthuthukisa ukusebenza kwayo okuphelele, njengokusebenzisa izinhlanganisela zezinhlanganisela ezikotweni.

Njenge-polymer ebalulekile ye-polymer, izinhlobo ezahlukene ze-hydroxyethyl celtulose (HEC) zivumelanisa nezidingo zohlelo lokusebenza ezahlukahlukene ngokusebenzisa izinguquko ngokufaka esikhundleni sokufakwa esikhundleni, ukufakwa esikhundleni se-molar, i-viscosity kanye nefomu lomzimba. Ukuqonda lezi zigaba kusiza ukukhetha imikhiqizo efanelekayo ye-HEC ezinhlangeni ezisebenzayo zokuthola ukusebenza okuhle kakhulu nomphumela. Noma ngabe ngamakhemikhali nsuku zonke, izinto zokwakha, izimbobo noma umuthi, i-hec isetshenziswa kabanzi ngokuqina kwayo, ama-moisturizing and filting Properties.