I-HEC (i-hydroxyethyl cellulose)isetshenziswa kakhulu ekugqokeni ngenxa yokuqina kwayo okuhle kakhulu, ukwakheka kwefilimu, ukuthambisa nokuhlakaza izakhiwo.
1. Ukuqina
I-HEC ivame ukusetshenziswa njenge-thickener yezingubo ezisekelwe emanzini, ezingakhuphula ngokuphumelelayo i-viscosity yokugqoka futhi zenze ukugqoka kube lula ukusingatha ngesikhathi senqubo yokugqoka. Ngenxa yokuthi i-HEC iyancibilika emanzini, inganikeza imiphumela eqinile yokuqina ekugxilweni okuphansi, isize i-coating igcine izakhiwo ezinhle ze-rheological. Lokhu kubaluleke kakhulu ekusetshenzisweni okufana nokufafaza nokuxubha ukuvimbela upende ukuthi unganciphisi ngesikhathi sokufaka.
2. Yakha ifilimu yokugqoka iyunifomu
I-HEC inezinto ezinhle kakhulu zokwenza ifilimu futhi ingakha ifilimu yokuhlanganisa iyunifomu futhi ebushelelezi ngesikhathi sokumisa. Lesi sici senza i-HEC isetshenziswe kabanzi emigqonyeni esekwe emanzini, njengezingubo zodonga nezingubo zokhuni. I-HEC isiza ukuthuthukisa ukunamathela nokumelana namanzi kwamafilimu okugcoba, ngaleyo ndlela ithuthukise ukuqina nokuvikela izakhiwo zokugqoka.
3. Izakhiwo zokuthambisa
Phakathi nenqubo yokomisa upende,I-HECingagcina ngempumelelo umswakama kupende, ngaleyo ndlela igweme ukuqhekeka nokuxebuka okubangelwa ukomiswa ngokushesha okukhulu. Lesi sakhiwo esimanzisa sibaluleke kakhulu emigqumeni esekelwe emanzini ngoba kwandisa isikhathi esivulekile sokumboza, sinikeze umfakisicelo isikhathi esengeziwe sokufaka isicelo.
4. Thuthukisa izakhiwo ze-rheological
I-HEC ingathuthukisa izakhiwo ze-rheological zezingubo zokugqoka ukuze zibonise ama-viscosity ahlukene ngaphansi kwezimo ezihlukene zokugunda. Ngaphansi kwezimo eziphansi ze-shear, i-HEC inikeza i-viscosity ephezulu ukuze igcine ukuzinza kwe-coating, kuyilapho ngaphansi kwezimo eziphakeme zokugunda, i-viscosity iyancipha ukuze kube lula ukunamathela. Lesi sici sokunciphisa i-shear senza upende ube noketshezi oluthe xaxa ngesikhathi sokufuthwa nokuguqa, okwenza kube lula ukufeza ngisho nokunamathela.
5. Umhlakaza
I-HEC iphinde isebenze njenge-disperant ukusiza ukuhlakaza ama-pigments nama-fillers kuma-coatings. Ngokwandisa ukuhlakazeka kwama-pigments nama-fillers kuma-coatings, i-HEC ingathuthukisa ukuhambisana kombala kanye namandla okufihla ama-coatings. Lokhu kubalulekile ekukhiqizeni imikhiqizo kapende yezinga eliphezulu, ikakhulukazi ekusetshenzisweni kopende okudinga umbala ofanayo kanye nokucwebezela okuphezulu.
6. Izici zokuvikela imvelo
Njengoba imithetho yezemvelo iqina kakhulu, isidingo sokumbozwa ngamanzi siyaqhubeka nokwanda. Njenge-polymer yemvelo, izinto zokusetshenziswa ze-HEC ziyavuseleleka futhi zinobungani nemvelo, futhi zinganciphisa ukukhishwa kwe-volatile organic compounds (VOC) uma isetshenziswa embotsheni, ihambisana nezidingo zokuvikela imvelo embonini yesimanje yokumboza.
7. Izibonelo zohlelo lokusebenza
Kuzinhlelo zokusebenza ezisebenzayo,I-HECisetshenziswa kabanzi ekwakhiweni kwezakhiwo, ezimbotsheni zezimboni, ezimbozwe ngokhuni, ezimbanjeni zezimoto neminye imikhakha. Isibonelo, ekugqokeni kwezakhiwo, i-HEC ingathuthukisa ukumelana nebala kanye nokumelana nesimo sezulu sokugqoka; emigqeni yokhuni, i-HEC ingathuthukisa ukukhanya nokugqoka ukumelana kwefilimu yokugqoka.
Ukusetshenziswa kwe-HEC embonini yezingubo zokugqoka kubonisa ngokugcwele izakhiwo zayo ezinhle kakhulu zomzimba namakhemikhali. Njenge-thickener, ifilimu yangaphambili kanye ne-dispersant, i-HEC ingathuthukisa kakhulu ukusebenza kanye nekhwalithi yezingubo. Njengoba imboni yokumboza iqhubeka nokuphishekela ukuvikelwa kwemvelo nokusebenza okuphezulu, isidingo semakethe se-HEC kulindeleke ukuthi siqhubeke nokukhula. Ngocwaningo olujulile kanye nokuqanjwa kabusha kwesicelo ku-HEC, abakhiqizi bezingubo zokugqoka bangathuthukisa imikhiqizo encintisana kakhulu futhi evumelana nezimo ezimakethe.
Isikhathi sokuthumela: Nov-07-2024