Ukusetshenziswa kwe-hydroxyethyl celtulose (HEC) embonini yezentengiso

1. Isingeniso

IHydroxYethyl Cellulose (I-HEC) iyi-ether ye-anionic cellulose etholwe ngokuphendula i-cellulose yemvelo nge-oxide yemvelo ngemuva kokwelashwa kwe-alkali. I-HEC isetshenziswe kabanzi emkhakheni wezambatho ngenxa yezakhiwo zayo ezihlukile zenyama nangamakhemikhali, ezinjengamandla aphezulu amanzi, amandla okulungiswa okuhle kokulungiselela kanye nomsebenzi ongaphezulu.

2. Izici eziyisisekelo ze-HEC

I-HEC inezimpawu ezibalulekile ezilandelayo, okwenza kube yisengezo esibalulekile embonini yezambatho:
I-Solubinity yamanzi: I-HEC ingachithwa ngokuphelele emanzini abandayo ukwakha isixazululo esicacile noma esisezingeni eliphansi, okuvumela ukuthi ilungise ngempumelelo ukubonwa kwe-vivecosion.
Umphumela Wokuqina
Ukuqina kokumiswa: I-HEC ingazinza ukumiswa futhi ivikele ukumiswa kwemibala noma ama-filler ku-coating, ngaleyo ndlela enze ngcono ukufana nokuqina kwenhlanganisela.
I-Thixotropy: I-HEC inika uhlelo lokuhlanganisa oluhle i-Thixotropy, okungukuthi, ngaphansi kwesenzo se-shear Force, i-viscosity ye-coating iyancipha, okulungele ukwakhiwa; Lapho kukhululwa amandla ama-shear, ukuhlanganiswa kabusha kuthola ngokushesha ukubonakaliswa kwalo kwasekuqaleni, kunciphisa ukugcwala nokufafaza.
Umphumela we-colloid evikelayo

3. Ukusetshenziswa okukhethekile kwe-HEC in Coatings

3.1 PaintX Paint

Ukusetshenziswa kwe-HEC ku-Latex Paint kuboniswa ikakhulukazi kubakhuthazi, abaqinisi kanye nabagcini bamanzi:

I-Shirener: I-HEC ingakhulisa kakhulu ukubonakala kwe-latex ngopende, ngaleyo ndlela kuthuthukise uketshezi nokwakhiwa kopende. Ngokushintsha ukufinyeleleka kwe-HEC, i-viscosity efanelekile edingekayo yezindlela ezahlukahlukene zokwakha (njengokuxubha, ukugoqa, nokufafaza) kungatholakala.
I-Stabilizer: I-HEC ingavimba ngempumelelo ukufundwa kwemibala kanye nama-fillers e-Latex Paints, futhi athuthukise ukufana nokuqina kokugcina ngopende.
Umenzeli wokugcina amanzi: I-HEC inokugcinwa komswakama okuhle. Ngesikhathi senqubo yokwakha, kungavimba amanzi ebusweni ngopende ukuthi avele avele ngokushesha, ngaleyo ndlela agweme ukuqhekeka nokuphindwa kwe-pointing yefilimu yokupenda nokuqina kwefilimu yokupenda.

3.2 upende wezinkuni osuselwa emanzini

Kupende osuselwa emanzini asuselwa emanzini, i-HEC isetshenziswa ikakhulukazi njenge-ejenti yokulawula kanye ne-ejenti yokulawula i-SAG:

Umenzeli we-Leagering: I-HEC inika izinkuni ezisuselwa emanzini zipenda amazinga amahle okudala, okusiza ukwakha ifilimu elifanayo nelibushelelezi lepende lapho lihlanganisa izinkuni, kunciphisa amamaki we-orange.

Ukulawulwa kwe-SAG: Ngokuthuthukisa i-Thixotropy yopende wezinkuni osuselwa emanzini, i-HEC ingalawula ngempumelelo i-sag yopende lapho isetshenziswa endaweni ebheke phezulu, ngcono ukusebenza kwekhwalithi yokwakha kanye nekhwalithi yefilimu.

3.3 Izambatho zezakhiwo

Ezihlotsheni zezakhiwo (ezifana nezimbozo zodonga ezingaphandle kanye nezimbozo zodonga lwangaphakathi), i-hec idlala indima ebalulekile njengomuntu omkhulu, ohlakazekile nosizo lwefilimu:

I-Shirener: I-HEC inyusa ubuhlakani bezembatho zezakhiwo, okwenza kube nezindawo ezinhle zokwakha ngesikhathi sokwakha, ukunciphisa i-sag nokulungisa, nokuqinisekisa ubukhulu be-coating.
I-Dispersant: I-HEC ingahlakazeka futhi iqinise izinhlayiya ze-pigment, zivimbele ezinhlangeni nasekuxazululeni, futhi zithuthukise ukuhlakazwa kanye nokufana kokufana.
I-Film-Ezakhemeni Aid: I-HEC ingathuthukisa izakhiwo ezakha amafilimu zokuhlanganiswa, ukukhuthaza ukwakheka nokomiswa kwefilimu yokupenda, futhi kuthuthukise izakhiwo zemishini nokuqina kwefilimu yokupenda.

3.4 izigqoko ezikhethekile

Kwezinye izimbozo ezikhethekile (ezinjengezimbozo zokulwa nokulwa nokukhulisa, ukumbona okubuyisa umlilo, kanye nezambatho sokufakwa komlilo), i-hec ithuthukisa izidingo zokusebenza okukhethekile kokuhlangana ngokuqina kwayo, ukuzinza, kanye nemisebenzi yokulawula izingwebe:

I-Anti-Corrision Coatings: I-HEC ithuthukisa ukubonwa kanye nokumiswa kokuqina kwezimbozo zokulwa nokugqwala, okusiza ukujaha ngokulinganayo futhi kwakha ungqimba oluminyene.
I-Fire-Retardant Coastant: I-viscosity ephezulu kanye nezakhiwo ezenziwe ngefilimu zosizo lwe-hec zisiza izimbotshana zomlilo abuyiselwe umlilo ngamazinga okuvikela emazingeni okushisa aphezulu futhi athuthukise ukumelana nomlilo kwe-coating.
I-Thermal Insulation Coatings: I-HEC inika ukumboza ukufakwa okufudumele kokumiswa kahle ukuqina nokusebenza, ukuvumela ukuhlanganiswa ukuze kusatshalaliswe ngokulinganayo ngesikhathi senqubo yokuhlangana kanye nokwenza ngcono umphumela wokufakelwa okushisayo.

4. Ukukhetha kwe-HEC futhi usebenzise izinyathelo zokuphepha

Lapho ukhetha futhi usebenzise i-HEC, amaphuzu alandelayo kufanele aqashelwe:

Ukukhetha i-Viscosity: Khetha ibanga elifanelekile le-HEC ngokusho kwezinhlelo ezahlukahlukene zokuhlanganisa. Isibonelo, i-Heec ephezulu ye-Vispecial ilungele izinhlelo ezinama-coating ngokuqukethwe okuqinile okuqinile noma i-viscosity ephezulu, ngenkathi i-heec ephansi ye-hec ilungele izinhlelo ezinokuqukethwe okuphansi okuphansi noma okubonakalayo okuphansi.
Indlela yokungeza: Ukuze ugweme ukwakheka kwezigaxa lapho i-HEC ichithwa emanzini, indlela yokungezwa kancane kancane futhi i-chutset ivame ukwamukelwa, futhi izinga lokushisa lenyuka ngokufanele futhi isikhathi esivuselelwayo selulekwa ngesikhathi sokuchitheka.
Ukuhambisana

I-5. Isimo sentuthuko esizayo

Ngokuthuthuka okuqhubekayo komkhakha we-Coating, izidingo zokusebenza kwe-coating ziyanda usuku nosuku. Njengesengezo esibalulekile esisebenzayo, i-HEC inamathuba okusebenza abanzi. Esikhathini esizayo, ukusetshenziswa kwe-HEC ngezingubo kungakhula kulezi zinkomba ezilandelayo:

Ukuvikelwa okuluhlaza kanye nemvelo: ukuthuthukisa i-low-voc, imikhiqizo ye-solvent-free hec ukufeza izidingo zokuvikelwa kwemvelo kanye nokufunwa kwemakethe.
Ukuguqulwa okusebenzayo: Ngokuguqulwa kwamakhemikhali noma ukuguqulwa ngokomzimba, i-hec inikezwa izakhiwo ezintsha ezisebenzayo, njenge-antifocterial, antifouling, ukuzihlanza, njll.
Ukugqoka okuphezulu: ukuthuthukisa imikhiqizo ye-HEC elungele ukugqokwa okuphezulu kokusebenza okuphezulu ukuze kuhlangatshezwane nezidingo ezikhethekile zokugqoka okuphezulu kokusebenza okuphezulu emikhakheni yokwakha, izimoto, imikhumbi, njll.
IHydroxYethyl Cellulose (HEC), njengesengezo esisebenzayo, idlala indima ebalulekile embonini yezambatho. Ukuqina kwayo okuhle kakhulu, ukumiswa, imiphumela ye-colloid ye-twixotropic kanye ne-colloroid evikelayo yenza ukuthi i-hec isetshenziswe kabanzi kumapende we-latex, upende wezinkuni osuselwa emanzini, izambatho zokwakha kanye nezingubo zokwakha ezikhethekile. Ngokuthuthuka okuqhubekayo komkhakha we-Coatings, amathemba wohlelo lokusebenza we-HEC azoba abanzi. Esikhathini esizayo, ngokwenza ngcono ukusebenza kwezemvelo nezici ezisebenzayo ze-HEC, inani laso lesicelo ezitsheni lizothuthukiswa ngokwengeziwe.