Ukunyangwa komphezulu we-pigments ye-inorganic

Emva konyango olungaphezulu lwee-pigments ze-inorganic, ukusebenza kwesicelo se-pigments kunokuphuculwa ngakumbi, kwaye iziphumo zibonakalisa ngokupheleleyo iimpawu zayo zamehlo, leyo yenye yemilinganiselo ephambili yokuphucula umgangatho wee-pigments.

Indima yonyango olungaphezulu

Isiphumo sonyango lomphezulu singashwankathelwa kwezi nkalo zintathu zilandelayo:

1. ukuphucula iimpawu ze-pigment ngokwayo, njengamandla ombala kunye namandla okufihla;
2.  ukuphucula ukusebenza, kunye nokuphucula ukusasazeka kunye nokuzinza kwe-dispersion ye-pigment kwi-solvent kunye ne-resin;
3.  ukuphucula i-pigment ekugqibeleni ukuqina kwempahla, uzinzo lwekhemikhali kunye nokuqhubekeka.

Ukunyangwa komphezulu we-pigment kunokwenziwa ngedyasi ye-inorganic kwaye yongeze i-organic surface-active agents ukufezekisa into yayo, umzekelo:

I-Chrome tyheli idumba ngokulula kwinkqubo yokuvelisa, ukujiya xa i-toner ithambekele kwi "silika", ngokongeza iisepha ze-zinc, i-aluminium phosphate, i-aluminium hydroxide ukunciphisa i-crystals acicular coarse, into ephantsi yokuvuvukala; i-lead chrome pigments etyheli ingasetyenziselwa i-antimony compound okanye umhlaba onqabileyo okanye i-silica surface ephathwayo ukuphucula ukumelana nokukhanya kwayo, ukumelana nobushushu kunye nokuzinza kweekhemikhali; indawo etyheli yecadmium inokongezwa ngeSiO2, iAl2O3 yonyango lomphezulu, ukomeleza ukumelana nemozulu, inokongezwa kwakhona i-sodium stearate, ialkyl sulfonates, njl.

I-Cadmium ebomvu nge-Al2O3, i-SiO2 i-coated surface treatment inokuphucula ukusasazeka kwayo kunye nokumelana nemozulu;
I-iron oxide pigment inokuthi iphathwe nge-agent ye-stearic acid ukuphucula i-dispersibility yayo kwi-organic medium, unyango olungaphezulu lunokuba yi-Al2O3, i-oleophilic surface ukuphucula ukusebenza;

I-iron oxide yentsimbi ecacileyo, inokuphucula ukuchithwa kunye nokungafihli ngokudibanisa unyango lwe-sodium dodecyl naphthalene;

I-iron blue pigments ihlwempuzekile kwi-alkali, ukuxhathisa kwealkali kunokongezwa lunyango lwe-amine enamafutha omphezulu;
I-Ultramarine i-acidity ephantsi yokuxhatshazwa kwe-asidi, i-asidi inokuphucula ukusebenza kwayo ngonyango lwe-SiO2;
I-Lithopone Lithopone kwi-zinc sulfide inokuncitshiswa ngumsebenzi we-photochemical wezinto ezinqabileyo zomhlaba kunyango lomphezulu.