Morphological regulation of calcium sulfate hemihydrate from phosphogypsum
Authors:
- 1 November 2017
- journal article
- research article
- Published by Wiley in Materialwissenschaft und Werkstofftechnik
- Vol. 48 (11) , 1191-1196
Abstract
The calcium sulfate hemihydrate whiskers were prepared from phosphogypsum at hydrothermal condition. The influences of different organic acid (citric acid and poly (acrylic acid)) on the crystal morphology were detected, respectively. The morphology of crystals can be influenced by adding organic acid. Short and large columnar crystals can be obtained by adding 5 wt.% citric acid, which can be used as cementitious materials. The long columnar crystals with uniform diameter can be obtained by adding poly (acrylic acid), which can be applied in composites.Keywords
Funding Information
- Sichuan Science and Technology Development Program of China (2017GZ0380)
- Postdoctoral Science Foundation of China (2016M590900)
- Postdoctoral Science Foundation of Southwest University of Science and Technology (16zx7127)
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