Abstract
To obtain a kind of composite particles material which has the property of both fly ash glass beads (FA) and titanium dioxide (TD), chemical hydrolysis precipitation method was adopted. Each process condition was investigated and the results were characterized by titanyl sulfate hydrolysis rate and the effect of FA coated TD. Composite structure and properties were characterized by means of X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), Fourier Transform Infrared Spectroscopy (FTIR) and testing physical properties of FA/TD. The results show that the surface of FA has been coated with TD uniformly and compactly after titanyl sulfate hydrolysis and cladding content roasted. The optimal preparation conditions are hydrolysis cladding temperature 100°C, time 180min, matrix slurry concentration 0.5%, titanyl sulfate solution dosage 0.5g/g and titanyl sulfate solution drop way for the graded way. The hiding power and whiteness of the composite powder are respectively 35.47 g/m2 and 54.43. The results also show that the composite powder has similar pigment performances with TD and it is much whiter than material.
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