Abstract
Nanosized dispersive flake-like magnesium hydroxide (Mg(OH)2) had been prepared by a hydrothermal method. In the process, when the surfactant polyvinyl pyrrolidone was added, high dispersion, small particle size and large specific surface area of hexagonal crystal magnesium hydroxide was obtained by ultrasonic dispersion and temperature program. The flame retardant of Mg(OH)2 was systematically explored by scanning electron microscope (SEM), transmission electron microscopy, X-ray diffraction, BET analysis and thermo-gravimetric analysis tests. SEM showed the formation of uniform and small size magnesium hydroxide particle with hexagonal nanoscale. Under the optimized conditions, high nano-sized hexagonal Mg(OH)2 was acquired with a mean particle size of 134 nm and a specific surface area of 26.66 m2/g. According to TGA results, the sample’s decomposition temperature was 626.9 K, which was consistent with the reported literature. It is vitally prospected that the prepared hexagonal Mg(OH)2 is to be applied to the industry as a flame retardant.
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Acknowledgments
The financial support of open project of Key Laboratory of Qinghai Salt Lake Resources Comprehensive Utilization, Qinghai Salt Lake Industry Co., Ltd. (Q-SYS-201516-KF-08), and open project of Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lake, Chinese Academy of Sciences is gratefully acknowledged.
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Zong, L., Li, L., Zhang, J. et al. Synthesis of High Dispersion and Uniform Nano-sized Flame Retardant-Used Hexagonal Mg(OH)2 . J Clust Sci 27, 1831–1841 (2016). https://doi.org/10.1007/s10876-016-1045-4
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DOI: https://doi.org/10.1007/s10876-016-1045-4