Abstract
By using the modular-deformation method of calculations, we established the influence of finely divided filler (talc) and additional heat treatment on the elastoplastic properties of polylactide materials. We detected the changes in the modulus of deformation, elasticity modulus, and thermomechanical characteristics of polylactide composites. The maximum values of the moduli and melting point were observed for thermally treated specimens with a talc content of 2 wt.%. We determined the fractions of the elastic, plastic, and highly elastic components in the total deformation of polylactide materials and showed that the fraction of the plastic component decreases after thermal treatment and as a result of introduction of the filler. It was also discovered that the level of hardness and structure factor of the obtained materials noticeably increase as a result of the introduction of talc and additional thermal treatment.
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