Ifu ya Ultrafine ifu yigabanyijemo cyane cyane pigment organic na pigment organic organique, pigment organique igabanijwemo cyane cyane pigment ya azo, pigment yibiyaga, pigment ya heterocyclic, pigment yimpeta ya ketone, pigment ya phthalocyanine nizindi pigment. Ibimera bidafite umubiri bigabanijwemo cyane cyane muri dioxyde de titanium, karubone yumukara, okiside itukura ya fer, nibindi nibindi.
Nyamara, mugikorwa cyo gutegura ifu ya pigment, uko ingano zingana zingana, ubuso bwifu ya pigment iziyongera, ibyo bikaba byoroshye kuganisha kuri agglomeration, bigatuma ibice binini, amarangi na wino sisitemu idahungabana, bigira ingaruka zikomeye kumiterere yibicuruzwa.
Muri iki gihe, ikwirakwizwa ry’umunyu ngugu wa amonium rirakenewe kugirango hongerwemo uburyo bwo kumenagura pigment, gukwirakwiza pigment muri sisitemu ya paste ya pigment, cyane cyane adsorb hejuru yifu yifu, kugabanya ingufu zubuso bwibice bya ultrafine pigment, kugirango bigerweho kimwe, n'umunyu ngugu wa amonium ukwirakwiza birashobora gukumira neza flokculasiyo gusubira mumisatsi yoroheje ireremba umusatsi wamabara. Guhuza neza no gusiga irangi no gucapa wino kugirango utezimbere amabara.
KukiUmukozi ukwirakwiza NNOakazi?
UwitekaUmukozi ukwirakwiza NNOmolekile irimo itsinda rya ankeri hamwe nigice gihamye. Uruhare rwitsinda ryitsinda ni ugutanga imbaraga zihagije zihuza ibice byuzuza pigment. Molekile zitatanye ntizigwa hejuru yuduce, nicyo gisabwa kugirango abatatanye bakore. Igikorwa cyigice gihamye ni uguhindura pigment igiteranyo cya pigment ikwirakwizwa nimbaraga za mashini binyuze mumashanyarazi ya electrostatike no kurwanya umwanya mugice cyamazi kugirango wirinde ko ibice byegeranya.
Mu mashanyarazi kama, mugihe igice gihamye cyikwirakwizwa gihindura uduce duto twa pigment yatatanye mukurwanya umwanya, mugihe intera yaUmukozi ukwirakwiza NNOibice ni bito kurenza ubunini bwurunigi rwumuti, urunigi rwumuti ruranyererana kandi entropie iragabanuka. Mu mazi, ionisiyoneri ibaho hafi yitsinda rya ionic kugirango ikore ibice bibiri, kandi kwanga electrostatike birinda uduce duto duto. Niba idafite ionion polyether ihagaze neza, polyether ihindura uduce duto twa pigment yatatanye mukurwanya umwanya.
Igihe cyoherejwe: Gicurasi-19-2022