Abstract
Dynamic mechanical analysis (DMA) provides reliable information about the viscoelastic behavior of neat and filled polymers. The properties of filled polymers are relevant to different industries as protective organic coatings, composites etc. Interfacial interactions in filled polymers play an important role in determining their bulk properties and performance during service life. In this brief review article, studies that used DMA to characterize the interfacial interactions in filled polymers have been reviewed. The available open literature provides a mixed opinion about the influence of interfacial interactions on the glass transition temperature of filled polymers. Nevertheless, it appears that in the case of strong interfacial interactions between the filler particles and the polymeric matrix, the peak value of tan δ is reduced in comparison to that of a filled polymer where these interactions are weak.
Highlights
Interfaces play an important role in determining the bulk properties and performance during the service life of filled polymers
At the same feldspar content, it was expected to get a lower tan δ value for the coating with smaller feldspar as compared to the one having bigger sized feldspar
From the discussion above involving a variety of polymers and fillers, it is evident that the interfacial interactions exist between the polymer matrix and the filler particles and Dynamic mechanical analysis (DMA) are an important analytical tool for investigating and understanding the interphase region of filled polymers
Summary
Interfaces play an important role in determining the bulk properties and performance during the service life of filled polymers. It is believed that the interfacial interactions (in the interphase region) between the matrix and the extender(s) play a major role in deciding the performance of an organic coating (or a composite) during service. The second nanolayer is thicker than the first one, which is formed around 25–90 Å away from the surface of the particles and contains polymer chains that are considered to be loosely is formed around 25–90 Å away from the surface of the particles and contains polymer bound the thickness of the region depends upon of polychains to that arenanoparticles. Properties of the interphase region are known to be and the quality of dispersion of extenders inside the matrix [4,5,6,7,8].
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