iindaba

I-iron oxide pigment luhlobo lombala olunokusasazeka kakuhle, ukumelana nokukhanya okugqwesileyo, kunye nokumelana nemozulu. Ii-iron oxide pigment ikakhulu zibhekisa kwiintlobo ezine zemibala yombala, ezizezi i-iron oxide ebomvu, i-iron mthubi, i-iron black, kunye ne-iron brown, ezisekelwe kwi-iron oxides. Phakathi kwazo, i-iron oxide ebomvu yeyona pigment iphambili (ebandakanya malunga ne-50% yee-iron oxide pigments), kwaye i-mica iron oxide esetyenziswa njenge-anti rust pigments kunye ne-magnetic iron oxide esetyenziswa njengezinto zokurekhoda zemagnethi nazo ziyinxalenye yoluhlu lwee-iron oxide pigments. I-iron oxide yeyona pigment yesibini ngobukhulu emva kwe-titanium dioxide kwaye ikwayeyona pigment inkulu kakhulu enemibala enga-organic. Ngaphezulu kwe-70% yazo zonke ii-iron oxide pigments ezisetyenzisiweyo zilungiswa ngeendlela zokwenziwa kweekhemikhali, ezaziwa ngokuba yi-synthetic iron oxide. I-synthetic iron oxide isetyenziswa kakhulu kwiindawo ezifana nezixhobo zokwakha, ii-coatings, iiplastiki, ii-elektroniki, icuba, amayeza, irabha, ii-ceramics, ii-inki, izinto zemagnethi, ukwenza iphepha, njl.njl. ngenxa yobunyulu bayo obuphezulu bokwenziwa, ubungakanani obufanayo beentwana, i-chromatography ebanzi, imibala emininzi, ixabiso eliphantsi, iipropati ezingezizo iityhefu, umbala ogqwesileyo kunye nokusebenza kwesicelo, kunye nokusebenza kokufunxwa kwe-UV.

Ukusetyenziswa kweepigment ze-iron oxide ukufaka imibala kwiimveliso zekhonkrithi kuya kuxhaphaka, kwaye ukusetyenziswa kwe-iron oxide ebomvu kwiimveliso zekhonkrithi kufuneka kuthathelwe ingqalelo kwezi mpawu zilandelayo. 1. Khetha umbala olungileyo. Kukho iintlobo ezininzi ze-iron oxide ebomvu, kwaye imibala iyahluka ukusuka ekukhanyeni ukuya kubunzulu. Okokuqala, khetha umbala owanelisekileyo nguwo. 2. Ukongeza iipigment kwiimveliso zekhonkrithi kunokuba nefuthe kumandla ekhonkrithi. Okukhona yongezwa ngakumbi, kokukhona iya kuchaphazela amandla ekhonkrithi. Ngoko ke umgaqo kukunciphisa ubungakanani bepigment eyongeziweyo kangangoko kunokwenzeka. Okukhona amandla ombala e-pigment engcono, kokukhona yongezwa kancinci. Ngoko ke, okukhona imfuneko yamandla ombala e-pigment iphezulu, kokukhona ingcono. 3. I-iron oxide ebomvu yenziwa yi-oxidation yezikali zesinyithi kwi-acid media. Ukuba iipigment ezikumgangatho ophantsi zine-acid kancinci, iipigment ze-acid ziya kusabela kwi-alkaline cement ukuya kwinqanaba elithile, ngoko ke okukhona i-iron oxide ebomvu isezantsi, kokukhona ingcono.

Ifomula ye-iron oxide pigment iyimfuneko ekhethekileyo kwiingubo zanamhlanje kunye namashishini e-thermoplastic.

Le mveliso ifanelekile kwiinkqubo zesiqhelo ezisekelwe kwisinyibilikisi kunye neengubo ezisekelwe emanzini. Ukufunxwa kweoyile okuncinci kufezekiswa ngenkqubo ekhethekileyo yokusila, evelisa ukusasazwa kobukhulu beentwana ezincinci kunye neentwana eziphantse zibe yingqukuva (ezine-polygonal). Ukufunxwa kweoyile okuncinci yindlela ebalulekileyo yokwenza iingubo eziqinileyo eziphezulu kunye neenkqubo zokudaya ezinomxholo ophezulu kunye nee-inki zeekhompawundi ze-organic eziguquguqukayo. Kucetyiswa ukuba ube nomxholo wetyuwa ophantsi kakhulu onyibilikayo emanzini, njengoko ii-pigment ze-iron oxide ziqinile kwaye zinokumelana kakuhle nemozulu.

I-pigment ye-iron oxide ebomvu e-depolymerized yenziwa ngonyango lobushushu kwaye ke ngoko imele i-iron oxide ebomvu e-calcined ehlala ishushu.
Iimibala zinezibonelelo ezibalulekileyo xa kuthelekiswa nezinto zokwenziwa zesiqhelo.

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Ixesha lokuthumela: Okthobha-18-2023