In the application in the field of construction material, through hot pressing processing, the material properties have been widely used for strengthening. Lime bricks, fiber reinforced cement is this kind of material, through setting, be strengthened under certain pressure and certain temperature (hot pressingconditions generally: 205 C, 16 high pressure, 4 hours).
Under the above conditions, add black in lime brick (Fe3O4), through hot pressing, itscolor from black to red. The general conditions of ordinary iron black pigmenttemperature performance can only be subjected to 150 DEG C, and the manganese containing iron oxide black (MnFe2O4) were used as materials and thermal stabilityunder the above conditions, can withstand high temperature hot pressing processingmore than 800 DEG C, while maintaining the color performance under these conditions.
Because MnFe2O4 black pigment (resistance to Wen Tiehei) has excellent temperature resistance, light resistance, weather resistance, acid and alkali resistantperformance, at present this kind of material has been widely used in the field ofautomotive paint, high temperature engineering resin, high performance industrial coatings, ceramic, enamel, roofing granules, painting paint etc..
