I-Ultrafine pigment powder yohlulwe kakhulu ibe yi-organic pigments kunye ne-inorganic pigments, ii-pigments eziphilayo zohlulwe ikakhulu zibe yi-azo pigments, ii-pigments zechibi, i-heterocyclic pigments, i-ketone pigments eshinyeneyo, i-phthalocyanine pigments kunye nezinye ii-pigments. Imibala ye-Inorganic pigments ikakhulu yahlulwe ibe yi-titanium dioxide, i-carbon emnyama, i-iron oxide ebomvu, njl.
Nangona kunjalo, kwinkqubo yokulungiselela umgubo we-pigment, ubungakanani be-particle size, umphezulu we-pigment powder uya kwanda, onokukhokelela ngokulula kwi-agglomeration, ukwenza amaqhekeza amakhulu, ipeyinti kunye nokungazinzi kwenkqubo ye-inki, echaphazela kakhulu umgangatho wemveliso.
Ngeli xesha, i-organic ammonium ityuwa dispersant iyadingeka ukongeza kwinkqubo yokutyumza i-pigment, i-pigment dispersant kwi-pigment paste system, i-adsorb kakhulu kumphezulu womgubo, ukunciphisa amandla omhlaba we-ultrafine pigment particles, ukufezekisa i-uniform dispersion effect, kunye ne-organic ammonium yetyuwa dispersant inokuthintela ngokufanelekileyo i-flocculation ukubuyela kwindawo erhabaxa yombala odadayo weenwele. Ukuhambelana kakuhle nepeyinti kunye ne-inki yokuprinta ukuphucula ukusebenza kokunikezelwa kombala.
KutheniI-arhente yokusasaza i-NNOumsebenzi?
II-arhente yokusasaza i-NNOI-molecule iqulethe iqela le-ankile kunye nenxalenye yokuzinzisa. Indima yeqela le-anchoring kukubonelela ngamandla anamandla aneleyo okubopha kwiinqununu ze-pigment filler. Iimolekyuli ezisasazwayo aziwi kumphezulu wamasuntswana, nto leyo eyimfuneko ukuze i-dispersant isebenze. Umsebenzi wenxalenye yokuzinzisa kukuzinzisa amasuntswana e-pigment aggregate ahlakazwe ngamandla omatshini ngokugxothwa kwe-electrostatic kunye nokumelana nendawo kwisigaba solwelo ukuthintela amasuntswana ukuba adityaniswe.
Kwizinyibilikisi zezinto eziphilayo, xa indawo ezinzileyo ye-dispersant izinzisa amasuntswana e-pigment asasazekileyo ngokumelana nendawo, xa isithubaI-arhente yokusasaza i-NNOiinqununu zincinci kunobungakanani bekhonkco lokunyibilikisa, i-solvent chain icinezela omnye nomnye kwaye i-entropy iyancipha. Emanzini, i-ionization yenzeka malunga namaqela e-ionic ukwenza umaleko ophindwe kabini, kunye ne-electrostatic repulsion ithintela ukuhlangana kwamasuntswana. Ukuba i-polyether engeyiyo i-ionized izinzile, i-polyether izinzisa amasuntswana e-pigment ahlakaziweyo ngokumelana nendawo.
Ixesha lokuposa: May-19-2022