Nrog rau kev txhim kho ntawm lub sijhawm, cov hlau oxide pigments yog siv dav hauv peb lub neej. Cov ntsiab lus tseem ceeb dua rau cov hlau oxide pigments yog kev faib tawm. Huamei Chengde iron oxide pigment manufacturers yuav qhia koj:
Thaum cov hlau oxide xim faib tawm cov xim, ntau yam teeb meem yuav tshwm sim, xws li tsis pom kev tsis txaus ntseeg lossis flocculation, cov khoom lag luam tsis ruaj khov lossis rheology, uas yog ze ze rau qhov tsis txaus tawm ntawm cov xim.
Hauv kev tshawb xav ntshiab," kev faib tawm zoo" txhais tau hais tias txhua qhov xim xim nyob hauv qhov system ua tiav de-flocculated, uas yog, txhua cov xim muaj xim yog qhwv los ntawm cov txheej nyias nyias ntawm cov xim xim lossis cov kuab tshuaj. Txawm li cas los xij, hauv kev coj ua no nyuaj heev kom ua tiav.
Txoj kev sib cais ntawm cov hlau oxide pigments cuam tshuam li cas rau kev ua tau zoo ntawm cov xim txheej?
Xim dispersion tuaj yeem cuam tshuam rau ntau yam tseem ceeb txheej:
Oss Tshaj dhau
● Huab cua tiv thiab tshuaj lom neeg kuj
Lub sijhawm cia khoom
● Xim, tinting zog thiab pob tshab
● Kev zais hluav taws xob
Gloss: Yog tias cov hlau oxide pigments tau zoo tshaj plaws tawg, qhov no ncaj qha tuaj yeem ua rau lub ntsej muag. Hauv txoj ntsiab cai, ci ntsa iab tau txiav txim siab los ntawm kev ua tiav ntawm cov xim puag. Ntxiv cov xim tsim nyog tuaj yeem tsuas yog muaj qhov tsis zoo ntawm lub ntsej muag: yog tias cov pigments tsis zoo tshaj plaws tawg, qee cov xim agglomerates yuav muaj qhov tsis zoo ntawm cov nplaim saum npoo av, yog li txo qhov pom meej vim tiv thaiv lub teeb tawg.
Kuj: Huab cua tsis kam thiab tshuaj lom neeg kuj tseem yuav tau txiav txim siab los ntawm kev xaiv ntawm cov xim puag. Kev tsis txaus ntseeg kev faib tawm ntawm cov xim tso rau ntawm no kuj txo tau ua haujlwm. Cov xim xim tau tawm ntawm cov npoo muab cov ntsiab lus nres rau cov tshuaj lom neeg thiab cov xwm txheej huab cua. Hloov siab, yog tias cov xim raug xaiv kom raug yog qhov zoo tshaj plaws, qhov txheej xim txheej txheej tiv thaiv tsuas yog txhim kho, piv txwv li, los ntawm kev cuam tshuam (TiO2) lossis nqus cov duab hluav taws xob ultraviolet (hlau oxide liab) txhawm rau txhim kho huab cua tiv thaiv. Cov xim tsim nyog los yog cov xim tha xim sab nraud kuj tseem tuaj yeem txhim kho qhov tshuaj lom neeg ntawm cov xim puag yog tias lawv tau tawg zoo.
Lub sijhawm cia: lub sijhawm khaws cia ntawm txheej txheej muaj ntau nyob ntawm qhov zoo ntawm cov xim dispersion. Thaum muaj qhov sib piv ntau ntawm cov ntxhib xim xim hauv cov txheej txheem, qhov tsis zoo ntawm cov nag lossis daus ntawm cov coarse xim hais tau yooj yim to taub. Xws li cov teeb meem kev ruaj khov tshwm sim los ntawm" ntawm cov xim los yog los ntawm re-flocculation ntawm cov xim sib txawv. Yog tias cov xim tsis tiav rov ua kom sov thaum pib ntawm kev tawg mus rau kev ua tiav tag, kev txhim kho tom qab daim tawv ncaug tuaj yeem cuam tshuam tau. Yog vim li cas rau qhov rov ua kom zoo dua ntawm yav tas los ua kom raug cov xim sib cais tau tawg yog qhov ruaj khov ntawm cov xim muab tshuaj txhuam tau zoo txaus. Qhov loj no nyob ntawm qhov kev ruaj ntseg ntawm cov xim puag lossis qhov sib piv ntawm cov xim puag kom daws tau thaum cov txheej txheem dispersion. Cov kuab tshuaj feem ntau muaj cov khoom ntub dej zoo heev, thiab xim pleev xim tau zoo rau kev ruaj khov. Qhov teeb meem yog qhov zoo tagnrho ua ke ntawm txoj kev ntub dej (= daws teeb meem) thiab kev ruaj khov (= xim pleev xim).
