Stabilization Effect of Sodium Phosphate on Hemihydrate Calcium Sulfate Whiskers

Xiao Wang; Yu Bin Wang; Liu Shuan Yang; Xiao Fei Wang; Jia Kuan Yang

doi:10.4028/www.scientific.net/AMR.287-290.535

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Stabilization Effect of Sodium Phosphate on Hemihydrate Calcium Sulfate Whiskers

Abstract:

Stabilization effect of sodium phosphate on crystalline phase and crystal shape of hemihydrate calcium sulfate whiskers was investigated. Morphology, thermal stability and phase composition of stabilized hemihydrate calcium sulfate whiskers were characterized by means of SEM, DSC-TG and XRD respectively. Results indicated that crystalline shape of hemihydrate calcium sulfate whiskers could be invariable in two hours at 100 °C with addition of 0.10 wt % sodium phosphate for 20 min. Meanwhile sodium phosphate had a good effect on whiskers morphology stabilization.