iindaba

I-Dispersant yi-arhente esebenzayo ye-interfacial eneempawu ezimbini ezichaseneyo ze-lipophilicity kunye ne-hydrophilicity ngaphakathi kwemolekyuli.

Ukusasazwa kubhekisa kumxube owenziwe kukusasazeka kwento enye (okanye izinto ezininzi) ukuya kwenye into ngendlela yamasuntswana.

Izinto ezisasaza izinto zinokusasaza ngokulinganayo amasuntswana aqinileyo namanzi ee-pigment ezingaphiliyo neziphilayo ezinzima ukunyibilika kulwelo, kwaye zithintele ukubola kunye nokuxinana kwamasuntswana, zenze ii-reagents ezihlala emanzini ezifunekayo kwi-suspensions ezinzileyo. Uphando noPhuhliso lweekhemikhali zeHouhuan kunye nokuveliswa kwezongezo ezisekelwe emanzini kunye nezongezo ezisekelwe kwioyile kumashishini ahlukeneyo, iindidi ezinxulumene ne-surfactant.

Inkqubo yokusasazwa yahlulwe yaba: isisombululo, i-colloid kunye ne-suspension (emulsion). Kwisisombululo, i-solute yi-dispersant kwaye i-solvent yi-dispersant. Umzekelo, kwisisombululo se-NaCl, i-dispersant yi-NaCl, kwaye i-dispersant ngamanzi. I-dispersant ibhekisa kwizinto ezisasazekileyo zibe ngamasuntswana kwinkqubo yokusasazwa. Enye into ibizwa ngokuba yi-dispersed substance.

Imisebenzi yokusebenzisa i-industrial pigment dispersant yile ilandelayo:

1. Sebenzisa i-wetting dispersant ukunciphisa ixesha namandla afunekayo ukugqiba inkqubo yokusasazwa, ukuzinzisa ukusasazeka kwe-pigment, i-PP adhesion promoter, ukuguqula iipropati zomphezulu wee-pigment particles, kunye nokulungisa ukuhamba kwee-pigment particles.

2. Nciphisa uxinzelelo phakathi kolwelo-ulwelo kunye nolwelo oluqinileyo. Ii-Dispersants zikwayi-surfactants. Ii-Dispersants yi-anionic, i-cationic, i-non-ionic, i-amphoteric kunye ne-polymeric. Phakathi kwazo, uhlobo lwe-anionic lusetyenziswa kakhulu.

3. I-Dispersant iarhente encedisayo enokuphucula ukusasazeka kwezinto eziqinileyo okanye ezingamanzi.