ABSTRACT
This chapter deals with the technical concept of the operation of dynamic-mechanical analysis, the use of some geometries and methodologies that would explain the behavior of the storage (G) and loss (G'') moduli, tangent delta (δ), stress (σ), deformation (γ), time (t), frequency (ω) and temperature (T). These evaluations help to identify physical parameters, including thermal properties, which allow a structural analysis of polymers and biocomposites. It is essential to highlight t the types of polymers and lignocellulosic fibers that have been reported to form biocomposite materials, evaluated by dynamic-mechanical analysis, to identify advances in mixtures from biodegradable biopolymeric matrices when these contain polylactic acid (PLA). Due to its higher thermal stability, it is also mentioned that it presents similar behavior to synthetic polymers derived from petroleum. The importance of evaluating these biopolymeric blends in terms of the influence of the content of the addition of biomaterials that can be modified or pretreated earlier by adding bases and using coupling agents, plasticizers, or from aging environments is highlighted.
