Nanocomposite microstructure

FEM has also been used to predict the mechanical properties of PNCs. These studies reasonably reproduced the nanocomposite microstructure (i.e., particle size, amount, and spatial arrangement) and underlined the importance of including an... 

Flahaut, E., Peigney, A., Laurent, C. et al., Carbon nanotube-metal-oxide nanocomposites microstructure, electrical conductivity and mechanical properties, Acta Mater., 2000, 48 3803. 

This kinetically dependent mechanism provides a means to develop a nanocomposite microstructure with the particles (or the majority of the particles) occluded within the matrix grains. On the other hand, occlusion can be prevented, for the most part, if glass-forming impurity elements are not introduced into the material during the processing stage. As we will see in the next section, the position of the particles (i.e. occluded or at grain boundaries) can influence the microstructurally dependent properties of nanocomposites. 

They improved their method by using finer magnetic elements, and developed a representation for the local demagnetizing field (Fukunaga and Kanai 1998). They concluded that a magnet composed of 60% soft and 40% hard grains with a grain size around 20 nm should be the best nanocomposite microstructure for the Nd-Fe-B system. 

Y. Mohammadpour and A. A. Katbab, Effects of the Ethylene-Propylene-Diene Monomer Microstructural Parameters and Interfacial Compatibilizer Upon the EPDM/Montmorillonite Nanocomposites Microstructure Rheology/Permeability Correlation, Journal of Applied Polymer Science, 2007, 106, 4209. 

Emulsion polymerization can be used for the synthesis of this kind of composite. In this case the sample can be prepared by coagulation and the separation can be avoided. Moreover, it is not clear how this process can affect the properties of the nanocomposite microstructure [89]. 

Characterization of Nanocomposite Microstructure. Mixing clay with a polymer does not necessarily lead to a nanocomposite. Elaboration strategies are aimed at monitoring dispersion of the inorganic compound at the nanometer level, that is down to the elementary clay platelet. Figure 2 provides a schematic illustration of the various microstructures readily achievable, namely a conventional fllled polymer with clay particles in the micrometer range, an... 

Khuspe G. D., Navale T. Shankararao, Chougule A. Manik, et al. Facile method of synthesis of polyaniline-SnOj hybrid nanocomposites Microstructural, optical and electrical transport properties. Synth. Met. 178 (2013) 1-9. 

Natural polymer research has included use of these alternative materials with nanoparticles [487] because of three significant properties multifunctionality, biodegradabihty, and bio-compatibihty. Breakthroughs in cost of production and property profiles for biomaterials will be needed before they become reasonable to market. Research has been conducted on melt formation of a starch-clay nanocomposite for bioplastic applications [487] however, an issue is the high water uptake and thus loss in mechanical properties requiring modification of the clay and the composite process. As with other nanocomposites, microstructural characterization is typically by TEM and AFM. 

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