Carbon composites with graded binder distribution along the product cross-section were developed using epoxy-benzoxazine powder binders. Their rheological, thermophysical, and physicomechanical properties were analyzed. It was demonstrated that graded compositions offer certain advantages in providing control over the parameters of the production process, both during the plate consolidation and the final product formation by pressing. The production of dry prepregs by electrostatic spraying of powder binders on carbon fiber followed by melting, the consolidation of prepregs into plates by vacuum bagging, and subsequent pressing of the plates to obtain the product were optimized. The feasibility of producing a graded carbon composite with enhanced physicomechanical and thermophysical properties was revealed for powder compositions based on benzoxazine, thermoplastic polymer, and epoxy-novolac and epoxy resins. Binder compositions with a gradient of components were proposed. A positive effect of the matrix gradient on lowering the temperature gradient during thermal pressing was confirmed.

The composition of conductive powder binder based on solid epoxydian resin, graphite filler, and powder hardener was developed. The electrical properties o

The paper considers the possibility of using aluminosilicate binders as a foaming aggregate for sandwich panels. The main factors influencing the foaming process (viscosity, surface tension of the compositions, as well as the time and temperature of the process) are investigated. The optimal foaming temperature and time of drying, foaming, and solidification have been determined to achieve a strong and homogeneous foam structure. Tests for the strength of the glued joint of the obtained panels have been carried out.

The influence of montmorillonite on the polymerization and properties of photocurable resin has been investigated. It has been shown that montmorillonite added to the binder composition does not retard the curing reaction and does not suppress UV curing. Montmorillonite improves the elasticity modulus and does not influence the glass transition temperature of UV-cured compositions.