Magnetic polymer nanocomposites applications

Alfadhel Ahmed, Li Bodong, and Kosel Jurgen. Magnetic polymer nanocomposites for sensing applications. IEEE Sensors, no. 6985442 (2014) 2066-2069. 

Kalia Susheel, Kango Sarita, Kumar Amit, Haldorai Yuvaraj, Kumari Bandna, and Kumar Rajesh. Magnetic polymer nanocomposites for environmental and biomedical applications. Colloid Polym. Sci. 292 no. 9 (2014) 2025-2052. 

Magnetic polymer nanocomposites can be in the form of powders and suspensions, fibers, films and multilayers, or tridimensional solids. In each of these forms, they can be used in a large number of applications accordingly with their properties. A scheme of this classification is shown in Fig. 17.2. 

Godovsky, D. Y.-. Device Applications of Polymer-Nanocomposites. Vol. 153, pp. 163-205. Godovsky, D. Y.-. Electron Behavior and Magnetic Properties Polymer-Nanocomposites. Vol. 119,pp. 79-122. 

The chemical-physical properties of nanocomposite and membrane finds unique place in sensor application due to combinational properties. The basic use of nanocomposite is to the products, which show many folds of improvement on the physical and mechanical properties or on the processing properties upon addition of very minute quantity of nanomaterials [99], Nanoscale particles not only enhance the mechanical properties but also have wide potential in the field of electronic, magnetic, optical, and chemical field. The polymer nanocomposites provide improvement over other known composites in thermal, mechanical, electrical, and even air barrier properties [64-70], Formulation of nanocomposite membranes with suitable polymer, suitable nanoparticles, and the processing technology of the nanocomposite are critical to success factor to dominate the gas sensor product in the market. 

Metal-polymer nanocomposites can be exploited for a number of technological applications. The functional uses of these materials are related primarily to their unique combination of high transparency in the visible spectral range with other physical properties (e.g., luminescence, magnetism, surface plasmon resonance, ultrahigh or ultralow refractive index, optical nonlinearity). 

Synthetic composite materials have passed through intensive progress in the last fifty years. Originally, synthetic polymers were blended with inorganic fillei-s for the sake of price reduction on the other hand, fillers cause considerable change in many physical properties of polymei-s. Later, functional fillers bringing other effects to polymer composites, such as magnetic or electrical properties, bioactivity, reduced flammability, etc., were introduced in the 80 s and 90 s. Nanocomposites can offer both miique properties and multi-functionality, which are well applicable in various fields. Undoubtedly, if one wants to use polymer nanocomposites in specific applications, the structure-property relationships have to be fully understood in these miique materials first. 

Functional polymer nanocomposites consist of polymer matrices, including thermoplastics, thermosets and elastomers having nanoparticles or nanofillers dispersed in the polymer matrix. Two or more materials are combined to produce composites that possess properties that are unique and cannot be obtained from the individual materials acting alone. This new class of composite materials has shown enhanced optical, magnetic, mechanical, electrical and dielectric properties. They are important commercial materials with new combinations of structural and functional properties for applications in medicine, civil engineering, rubber and plastics, automotive and electrotechnical industries [39]. 

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