iindaba

I-Dispersant ikwabizwa ngokuba yi-arhente yokumanzisa kunye ne-dispersing.Kwelinye icala, inefuthe lokumanzisa, kwelinye icala, elinye icala leqela elisebenzayo lingabhengezwa kumphezulu wepigment etyunyuziweyo ibe ngamasuntswana acolekileyo, kwaye esinye isiphelo sinyibilikisiwe kwisiseko sezinto ukwenza umaleko we-adsorption. amaqela e-adsorption ngaphezulu, ixesha elide ikhonkco lekhonkco, liya lingqimba umaleko we-adsorption) ukuvelisa ukugxotha intlawulo (ipeyinti esekwe emanzini) okanye i-entropy repulsion (ipeyinti esekwe kwi-solvent), ukuze amasuntswana e-pigment asasazwe kwaye anqunyanyiswe kwipeyinti. ixesha elide ukunqanda i-flocculation kwakhona.Oku kuqinisekisa ukuzinza kokugcinwa kwenkqubo yepeyinti.
 
Iintlobo ezisetyenziswa ngokuqhelekileyo ze-dispersants.
I-1.I-Anionic yokumanzisa kunye ne-arhente yokusabalalisa
Uninzi lwazo luqulunqwe nge-non-polar, i-charged hydrocarbon chain kunye neqela le-polar hydrophilic.Amaqela amabini akwiziphelo ezimbini ze-molecule, enza i-asymmetric hydrophilic kunye ne-oleophilic molecular structure.Iintlobo zayo zezi: i-sodium oleate C17H33COONa, i-carboxylate, i-sulfate (RO-SO3Na), i-sulfonate (R-SO3Na), njl. kwaye isetyenziswa ngokubanzi njengezisasazi ezilawulwayo zohlobo lwe-flocculation.

I-2.Cationic yokumanzisa kunye ne-arhente yokusabalalisa
Zizikhompawundi ezingeyopolar ezichajiwe kakuhle, ikakhulu iityuwa zeamine, iityuwa ze-amine ze-quaternary, iityuwa ze-pyridinium, njl njl. ukuba basabela ngeekhemikhali kunye neqela le-carboxyl kwizinto ezisisiseko, kwaye uqaphele ukuba akufanele zisetyenziswe ngaxeshanye kunye ne-anionic dispersants.

3.Ukulawulwa kwe-radical free type hyperdispersant
Okwesibini, indima yokusabalalisa
1.Phucula iglosi kunye nokwandisa umphumo wokulinganisa.
2.Thintela umbala odadayo kunye neentyatyambo.
3.Phucula amandla ombala.
4.Nciphisa i-viscosity kunye nokwandisa ukulayishwa kwe-pigment.
5.Ukunciphisa i-flocculation, ukwandisa ukwakheka kunye nokusebenziseka.
6.Thintela i-recoarse kunye nokwandisa uzinzo lokugcina.
7.Ukwandisa ukusasazeka kombala kunye nokugcwala kombala.
8.Ukwandisa ukungafihli okanye amandla okugquma.
9.Ukuphucula ukusebenza kakuhle kokusila kunye nokunciphisa iindleko zemveliso.
10.Nqanda ukuzinzisa.