1 Introduction</h5> Relationships between mechanical properties and microstructure of materials, especially for solid polymers, represent the major key to better understand, control and predict their final in-use behavior. Numerous experimental works have been devoted to characterize the microstructural deformation mechanisms of polymers involved in uniaxial tension and many elementary descriptive models have been already proposed and discussed by the past [37,17,22,47] . They depend on the initial microstructures of polymers which are mainly induced by the formulation and the conformation processes. As a result, mechanical behavior presents significant differences if the polymer matrix is amorphous [7,5,42,48] , semi-crystalline [53,18,45,3,46,12,36,42] or filled with mineral and/or rubber particles [8,38,43,35,52,12,28,39] . Chain orientation, shear banding, and volume damage (voids resulting from crazing or nodules/particles decohesion) are the main involved deformation micromechanisms whatever the initial microstructure of the considered material. The prevalence of one mechanism regarding the others induces such kind of mechanical properties differences. To investigate such mechanism of deformation of polymer blends involved during stretching, the need of fast and non-destructive techniques combining commodity in use is growing among the researchers community [11,30,31,41] . In this paper, two of them are performed simultaneously during uniaxial tensile tests to study the
Polymer – Elsevier
Published: Dec 2, 2015
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