Hybrid Polymer Composites for Structural Purposes

Abstract

A review of foreign and domestic literature and practice on the use of polymer composites for structural purposes in the field of construction is carried out. The main factors hindering the widespread introduction of polymer composites in the construction sector have been identified: polymer composite profiles manufactured at the factories duplicate the shapes of profiles of metal analogues with isotropic mechanical properties; not all structural elements made of polymer composites meet the defining condition of strength testing according to the second limit state (for deformations), this leads to an increase in cross-sections, a decrease in the pitch of structural elements; problems related to insufficient information on durability, involving the use of overestimated values of the coefficients of the working conditions of the material due to insufficient knowledge of the properties and a significant spread of physical and mechanical characteristics; problems related to import substitution of polymer composite components. A scientific problem has been formulated, which consists in studying the mechanisms of formation of the adhesive strength of hybrid composites at the fiber-matrix interface, followed by the development of effective ways to regulate their condition in order to ensure a strong connection. The actual tasks, the solution of which needs to be concentrated in order to accelerate the process of introducing hybrid polymer composites for structural purposes, are presented