Additional Effects of Urea and Hexamethylenetetramine on Preparation and Acidic Properties of Aluminum Polyphosphates

Hiroaki Onoda; Masakazu Kohno; Kazuo Kojima; Atsushi Takenaka

doi:10.1163/157361109787959877

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Multidiscipline Modeling in Materials and Structures

ISSN: 1573-6105

Online from: 2005

Subject Area: Mechanical & Materials Engineering

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Additional Effects of Urea and Hexamethylenetetramine on Preparation and Acidic Properties of Aluminum Polyphosphates

Document Information:
Title:	Additional Effects of Urea and Hexamethylenetetramine on Preparation and Acidic Properties of Aluminum Polyphosphates
Author(s):	Hiroaki Onoda, (Division of Inorganic Materials Chemistry, Chemical Resource Laboratory, Tokyo Institute of Technology, 4259-R1-21, Nagatsuta, Midori, Yokohama, 226-8503, Japan), Masakazu Kohno, (Division of Inorganic Materials Chemistry, Chemical Resource Laboratory, Tokyo Institute of Technology, 4259-R1-21, Nagatsuta, Midori, Yokohama, 226-8503, Japan), Kazuo Kojima, (Department of Materials Science, Yonago National College of Technology, 4448, Hikona-cho, Yonago, Tottori 683-8502, Japan), Atsushi Takenaka, (Department of Materials Science, Yonago National College of Technology, 4448, Hikona-cho, Yonago, Tottori 683-8502, Japan)
Citation:	Hiroaki Onoda, Masakazu Kohno, Kazuo Kojima, Atsushi Takenaka, (2009) "Additional Effects of Urea and Hexamethylenetetramine on Preparation and Acidic Properties of Aluminum Polyphosphates", Multidiscipline Modeling in Materials and Structures, Vol. 5 Iss: 2, pp.163 - 170
Keywords:	Aluminum polyphosphates, Hexamethylenetetramine, Thermal behavior
Article type:	General review
DOI:	10.1163/157361109787959877 (Permanent URL)
Publisher:	Emerald Group Publishing Limited
Abstract:	Aluminum polyphosphate was prepared from aluminum nitrate solution and sodium polyphosphate solution with cation exchange resin in the molar ratio of Al/P = 1/3. Urea and hexamethylenetetramine were added in this preparation process. The thermal behavior of the obtained phosphates was analyzed by differential thermal analyses, X-ray diffraction, and Fourier transform infrared spectroscopy. Furthermore, these materials and their thermal products were estimated by specific surface area, pore size distribution, particle size distribution, acid strength, amount of acidic sites, and adsorption of trimethylamine.