Browse > Article
http://dx.doi.org/10.12925/jkocs.2012.29.1.19

Synthesis and Surface Modification of Magnesium Hydroxide by Hydrothermal Method  

Lee, Hae-Young (Department of Engineering Chemistry, Chungbuk National University)
Kang, Kuk-Hyoun (Department of Engineering Chemistry, Chungbuk National University)
Lee, Dong-Kyu (Department of Engineering Chemistry, Chungbuk National University)
Publication Information
Journal of the Korean Applied Science and Technology / v.29, no.1, 2012 , pp. 149-158 More about this Journal
Abstract
Magnesium hydroxide[$Mg(OH)_2$] was prepared by hydrothermal method using oleic acid as surface modifier. $Mg(OH)_2$ particles exhibit flake morphology with micrometer in size and the surface modification starts from the reaction of $C_{17}H_{33}COO^-$ group, derived from oleic acid molecule in alkaline environments. It is found that hydrothermal treatment conditions such as pH, temperature and reaction time are important for the control of the morphology and properties of surface modified magnesium hydroxide. The obtained magnesium hydroxide groups were characterized by FE-SEM, XRD, FT-IR, TGA. The dispersion in organic solution was determined by sedimentation test and compared with the result of raw $Mg(OH)_2$.
Keywords
Magnesium hydroxide; Hydrothermal method; Surface modification;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J. Zhu, FM. Uhl, AB. Morgan and CA. Wilkie, Studies on the Mechanism by which the Formation of Nanocomposites Enhances Thermal Stability, Chem. Mater., 12, 4649 (2001).
2 H. Horacek and R. Grabner, Advatages of Flame Retardants Based on Nitrogen Compounds, Polym. Degrad. Stab., 54, 205 (1996).
3 LV. Xiaotang, Hari-Bala, Li. Minggang, Ma. Xiaokun, Ma. Shanshan, Ye Gao, Lanqin Tang, Jingzhe Zhao, Yupeng Guo, Xu Zhao and Zichen Wang, In situ Synthesis of Nanolamellas of Hydrophobic Magnesium Hydroxide, Colloids Surf., A, 296, 97 (2007).
4 J. Zhang, X. Wang, F. Zhang and AR. Horrocks. Estimation of Heat Release Rate for Polymer-Filler Composites by Cone Claorimetry", Polym. Test., 23, 225 (2004).
5 K. H. Kang, J. H. Lee and D. K. Lee, Synthesis and Characteristics of Magnesium Hydroxide group Flame Retardant for Polymer Addtives", J. Kor. Oil Chem. Soc., 26, 385 (2009).
6 G. Hua, Z. Xiao and D. Wei, Flame Retardant Synergism of Rubber and Mg(OH)2 in EVA Composites, Polymer, 48, 2537 (2007).
7 C. Henrist, J. P. Mathieu and C. Vogels, et al., Morphological Study of Magnesium Hydroxide Nanoparticles Precipitated in Dilute Aqueous Solution", J. Cryst. Growth, 249, 321 (2003).
8 Lv. Jingping, Qiu. Longzhen and Qu. Baojin, Controlled Synthesis of Magnesium Hydroxide Nanoparticles with Different Morphological Structures and Related Properties in Flame Retardant Ethylene-Vinyl Acetate Blends, Nanotechnology, 15, 1576 (2004).
9 Wu. Xiang-Feng, Hu. Guo-Sheng, W. Biao and Yang and Yun-Feng, Synthesis and Characterization of Superfine Magnesium Hydroxide with Monodispersity", J. Cryst. Growth, 310, 457 (2008).
10 C. Sanchez, B. Julian, P. Belleville and M. Popall, Applications of Hybrid Organic- Inorganic Nanocomposites, J. Mater. Chem., 15, 3559 (2005).
11 L. Fabrice and T. Christine, Fine Tuning between Organic and Inorganic Host Structure: New Trends in Layered Double Hydroxide Hybrid Assemblies, J. Mater. Chem., 15, 3628 (2005).
12 L. Z. Qiu, R. C. Xie, P. Ding and B. J. Qu, Preparation and Characterization of Mg(OH)2 Nanoparticles and Flame- Retardant Property of its Nanocomposites with EVA, Compos. Struct., 62, 391(2003).
13 R. N. Rothon and P. R. Hornsby, Flame Retardant Effects of magnesium Hydroxide, Polym. Degrad. Stab., 54, 383 (1996).
14 A. Botha and C.A. Strydom, Preparation of a Magnesium Hydroxide Carbonate from Magnesium Hydroxide, Hydrometallurgy, 62, 175 (2001).