Novel Synthesis of Nano Mg(OH)2 by Means of Hydrothermal Method with Different Surfactants

Abstract

Magnesium hydroxide (MOH) is a widely used inorganic chemical owing to its various properties. Hence, researchers have long studied its synthesis and its unique features. However, the morphological consequences have rarely been studied. Despite having several benefits for synthesizing nanoparticles, the hydrothermal method’s main drawbacks are its lengthy processing time and the high cost of raw materials. This research aimed to use more easily obtainable raw materials in a reasonably short time to synthesize MOH in various morphologies. For this purpose, we prepared different samples using the same hydrothermal method to investigate the effects of the precursor and surfactant on the structure, morphology, and size of MOH particles. The results of XRD and FTIR analysis demonstrated that a temperature of 180 C and a duration of 18 h is not sufficient for MgO as a precursor to obtaining MOH in the hydrothermal method. However, in the presence of different surfactants, MgCl2 resulted in nanoparticles with hexagonal structure and plate, flake, spherical, and disc morphologies.

Hydrophobic, Mechanical, and Physical Properties of Polyurethane Nanocomposite: Synergistic Impact of Mg(OH)2 and SiO2

“…In order to obtain fine particle dispersion in PU matrix, we used functionalized powder. MOH nanopowder (nMOH) was synthesized with the hydrothermal method which we investigated in a previous study with 75 nm plate particles [9]. However, the remainder of the raw materials were purchased from commercial companies whose characteristics are given in Table 1.…”

“…This was achieved by systematically loading a test zone, measuring the deformation, calculating the stress and strain based on the results, and using dumbbell-shaped samples with a length of 50 mm and a tensile testing equipment (ISO 37 standard, gauge length = 20 mm, strain rate = 10 mm/min). According to the FESEM images, nMOH which was studied in another paper [9], has a vertical orientation and plate shape. The mMOH presents agglomerated micron particles, but SO was formed in a spherical shape.…”

“…Raising the filler amount does have two independent and conflicting effects that must be considered: First, there are advantages derived from widening the reinforcementmatrix contact; second, there are disadvantages of lessening the degree of crosslinking in the polymer [8]. A nanocomposite with both traits can be fabricated by adding specific amounts of fillers with properties such as specific morphology, high density, hardness, toughness, and thermal stability to a polymer matrix with poor mechanical and thermal properties [9]. However, the improvement of performance in polymer composites may be greatly influenced by homogenization.…”

“…Figure 2 demonstrates the characterization of the nMOH, mMOH, and SO fillers.According to the FESEM images, nMOH which was studied in another paper[9], has a vertical orientation and plate shape. The mMOH presents agglomerated micron particles, but SO was formed in a spherical shape.…”

Establishment of the Most Effective Methods of Obtaining Nanosize Magnesium Oxide

“…Recent studies, the results of which are reported by F. Nisa et al [6] (on the use of nano-MgO biosynthesis technology), M. Kotresh et al [7] (on the temperature regimes of production of nanosize magnesium oxide), Z. Rajabimashhadi et al [8] (on the use of hydrothermal methods for the production of magnesium oxide nanoparticles) in the review parts contain generalisations about the existence of a fairly wide range of technological methods for the production and synthesis of the target nanomaterial, which mostly bear signs of laboratory-scale production and do not form ideas about the generalised optimised technology for the production of nanosize magnesium oxide for industry (except for individual proposals in the form of publications by F. Mirza and H. Makwana [9], in which the co-precipitation method is preferred). Also noteworthy are the studies by J. Veronica et al [10] (which favours the sol-gel method), S. Abinaya et al [11] (which favours the green synthesis method), which in general do not form a stable and consistent vector of commitment to any one prevailing method of producing the target nanoproduct).…”