Inorganic particle-polymer applications

Thermally conductive adhesives may be filled with metal, ceramic, or inorganic particles. Silver-filled epoxies have high thermal conductivities, but may not be used where there is a risk of electrical shorting. In such cases, epoxies or other polymers filled with electrically resistive, but thermally conductive materials such as aluminum nitride, boron nitride, alumina, or beryllia must be used. Some applications for thermally conductive adhesives include attachment of power devices, heat sinks, large components such as capacitors and transformers, large ceramic substrates, and edge connectors. 

Dispersion of inorganic particles gives rise to filled polymers. A wide variety of properties can be achieved, depending on the filler and its adhesion to the matrix. See Filler-matrix adhesion. The scope of application of rubbers is enormously extended by use of fillers that can give increased strength, stiffness and abrasion resistance to the material (see Rubber fillers). 

Due to the namre of the acoustic fields, the distribution of the particles will depend on the particle size and the compressibility and density of the particle relative to the fluid medium. Closer examination of the acoustic contrast factor shows that is may be negative (usually applicable to biological cells which are more compressible and less dense relative to the surrounding medium) or positive (as is in many inorganic and polymer colloids). Therefore, acoustic FFF (AcFFF) has tremendous potential in very clean separations of cells from other particles. One... 

Polymer nanocomposite having inorganic particles within nanoscale dimensions have received considerable attention because of their much improved unique properties and numerous potential applications as in automotive, aerospace and construction industry, manufacture of tires and inner tubes. Other industrial rubber goods include various belts, oil seals, gasket and food packing. 

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