I-ejenti ehlakazayo i-NNOngokuvamile isetshenziswa emkhakheni wamakhemikhali wokuhlakazwa, okungukuthi, upende, uyinki nokunye ukugaya kwe-pigment paste. Ngaphezu kwalokho, ukwengeza i-disperant ku-resin noma i-emulsion kungathuthukisa ukusebenza komzimba oyinhloko. Umsebenzi oyinhloko ukwehlisa ukotini, ukuvimbela ukucwila nokusiza ukuhlakazeka. Izici ezintathu ziyizici ezibalulekile zama-dispersants futhi zivame ukusetshenziselwa ukukhombaI-ejenti ehlakazayo i-NNO!
Okokuqala, nciphisa i-viscosity futhi ukwandise umthwalo we-pigment. Ukusebenzisa okufanelekileI-ejenti ehlakazayo i-NNO, i-viscosity yokunamathisela izoncishiswa kakhulu. Umphumela uwukuba ukwandisa umthwalo pigment, ngcono ukukhiqiza ukudlala indima enhle.
Okwesibili, abantu abaningi abanciphisa ihlule futhi bathuthukise ukwakhiwa kobunjiniyela nokusebenza bazoqhuba izivivinyo zocwaningo lapho behlola ama-thickeners. I-dispersant collocation engafanele, ukuthinta ngomunwe kanye nezingxenye ezingathinteki kuzovela umehluko wombala osobala, ikhono lombala le-pigment ejiyile lizoncishiswa, okuholela ebunzimeni bokwakhiwa kwe-toner nopende. Ukujiya kwamachibi ombala kungabonwa nangokuhlolwa kwepuleti eligelezayo.
Okwesithathu, thuthukisa ukukhanya noma ukumboza. Ngopende, uma unamathisele obala kakhulu, kungcono. Ngopende ojwayelekile, ukuphakama kotshani obunemibala, kungcono. Eqinisweni, kuhlobene nobukhulu be-pigment. Enye idatha ibonisa ukuthi ngaphandle kwenkomba ye-refractive, ukusatshalaliswa kosayizi wezinhlayiyana zikapende kungenye into ebalulekile yokubonisa ngale. Njengoba usayizi wezinhlayiyana ukhula, ikhono lokuhlakaza ukukhanya liqala ukuncipha njengoba likhula. Leli khono lokusabalalisa ukukhanya lizothuthukisa amandla okugcoba we-pigment, lapho amandla okuhlakazeka eqinile, futhi uma usayizi wezinhlayiyana uqhubeka nokwanda, amandla okugcoba azokwehla. Kodwa-ke, uma usayizi wezinhlayiyana ze-pigment ungaphansi kwenani elithile, ukukhanya kuzokwanda njengoba usayizi wezinhlayiyana uyancipha. I-Dispersant ayikwazi ukushintsha izici ze-pigment ngokwayo, kodwa ingakwazi ukulawula ukusabalalisa usayizi wezinhlayiyana ze-pigment, ukuze kuzuzwe umphumela omuhle wombala.
Yini i-dispersant yokumanzisa, i-disperant yokumanzisa uhlobo lwe-surfactant ene-hydrophilic ne-lipophilic. Ikakhulukazi engancibiliki oketshezini, isikhali singahlakaza ngokulinganayo izinhlayiya eziqinile ezinemibala ephilayo, sivimbele izinhlayiya eziqinile ukuthi zingahlali futhi zihlangane ukuze zenze ama-ejenti adingekayo ukuze kumiswe ukumiswa.
Ngakho-ke i-dispersant yakho yokumanzisa ekahle ingabukeka kanjani?
Uma kuyinto engase icwilise izinto eziqinile emanzini. Nciphisa ukushuba kwendawo noma ukungezwani kobuso ukuze amanzi asakazeke phezu noma angene endaweni eqinile, ngaleyo ndlela amanzise okuqinile. Futhi ngokuvamile i-ejenti esebenzayo engaphezulu, njengensipho, amafutha e-sulfonated, i-powder nokunye. Ungasebenzisa futhi i-soy lecithin, i-acetylene, i-mercaptan, i-mercaptan acetal, njll.
Zombili zingama-disperants wokumanzisa
1. I-Adsorb ebusweni bezinhlayiya eziqinile ukwenza ubuso obujiyile bezinhlayiya eziqinile bumanzi.
2. Ingaphezulu lezinhlayiya eziqinile zakha isendlalelo se-adsorption ukwandisa ukushaja ebusweni bezinhlayiya eziqinile futhi kuthuthukiswe amandla okusabela phakathi kwezinhlayiya ezenza izithiyo ezinezinhlangothi ezintathu.
3. Yenza ubuso bezinhlayiya eziqinile ukwakha isakhiwo se-bilayer, ungqimba lwangaphandle lwamanzi ahlakazekayo lunobudlelwane obuqinile, ukwandisa izinga lezinhlayiya eziqinile ezimanzi ngamanzi. Izinhlayiya eziqinile zihlukaniswa yi-electrostatic repulsion.
4. Uhlelo olufanayo, luthuthukise ukusebenza kokumiswa, akukho mvula, izakhiwo ezingokomzimba nezamakhemikhali zalo lonke uhlelo ziyefana.
Isikhathi sokuthumela: Jun-08-2022