Study of Interaction Processes of Adhesive and Paint-and-Varnish Materials with a Fire-Retardant Composition on the Veneer Surface

Abstract

A promising direction in the development of laminated materials is the creation of new fire-protected boards for the transport and construction industries. Raw materials for such materials can be fire-retardant compositions, rotary-cut veneer, and adhesive compositions that provide adhesive joints with increased water resistance. Fire-retardant compositions change the physicochemical state of the rotary-cut veneer surface. This paper presents the results of a study of the processes occurring on the surface of fire-protected veneer when applying adhesive composition and paint-and-varnish materials. Using IR spectroscopy, the nature of the interaction between the fire-retardant composition and phenol–formaldehyde resin has been established. Assessment of the wettability of the treated veneer, adhesive joint strength, and adhesion of paint-and-varnish materials showed the compatibility of phenol–formaldehyde resin and paint-and-varnish materials with the fire-retardant composition during the formation of adhesive joints and protective-decorative coatings.