Coefficient of thermal expansion of TiO2 filled EVA based nanocomposites. A new insight about the influence of filler particle size in composites.

Highlights: [•] A method based on the use of AFM was proposed to measure CTE of thin films. [•] The effect the presence of TiO2 nanoparticles on the CTE of EVA was evaluated. [•] New theoretical model proposed to understand the influence of the filler on the CTE of composites. [•] Interphase and size of particles in composites are the main factors to change polymer matrix CTE. [Copyright &y& Elsevier]