Txij li thaum xyoo 1980s, lub ntiaj teb' kev lag luam ntawv tau maj mam hloov ntawm cov kua qaub mus rau alkaline, uas tau hloov pauv kev siv cov fillers.
Daim ntawv sau yog qhov sib ntxiv ntawm qee qhov yooj yim insoluble khoom hauv cov ntaub so ntswg, xws li calcium sulfate thiab vanadium hmoov. Nyob rau hauv cov ntaub ntawv ntawm molybdenum muab tub lim, piv txwv li, lub ntsiab yog vim li cas rau ntxiv Mo nyob rau hauv cov txheej txheem ntau lawm ntawm daim ntawv yog:
1) Cov hmoov muaj purity siab (99.95%), me me particle loj, thiab zoo heev dispersion, yog li nws muaj peev xwm ua rau cov ntawv npaj muaj ib tug zoo kev ntxhib los mos, featured los ntawm qis impurity cov ntsiab lus, zoo txheej txheej uniformity, siab brightness, thiab smoothness;
2) Cov hmoov' s corrosion kuj, tshav kub tsis kam, hnav tsis kam, zoo thermochemical stability, thiab conductivity tuaj yeem txhim kho qhov tsis muaj peev xwm ntawm cov ntawv ib txwm muaj, suav nrog antioxidant, kev sib txhuam, softness, noo noo nqus, lub cev qhuav dej, dryness, thiab luam ntawv adaptability (xws li txhim kho kev nqus, number case absorption) thiab lwm yam.
Daim ntawv tom qab ntxiv Mo hmoov tseem yuav tsum tau ntsib qee qhov tsis zoo, xws li daim ntawv nplaum thiab lub zog poob qis, thiab ua rau cov hmoov, tab sis cov kev tsis txaus no tuaj yeem tsim los ntawm kev txhim kho thiab cov nplaum nplaum.
Nws tau tshaj tawm tias kev siv cov hmoov molybdenum hauv daim ntawv txheej txheej txheej tau nce ntau, los ntawm 5% ~ 10% mus txog 30%.
