Prediction of the Properties of Modified Phenol-Formaldehyde Composites Using Mathematical Modeling of the Composition of the Polymer Mixture
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Łukasiewicz Research Network, Institute for Engineering of Polymer Materials and Dyes, ul. M. Skłodowskiej-Curie 55, 87-100 Torun, Poland
Department of Chemical Technology of Plastics Processing, Lviv Polytechnic National University, Bandera 12 St., 79013 Lviv, Ukraine
Department of Polymer Processing, Faculty of Mechanical Engineering, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618 Lublin, Poland
Department Technologies, Materials and Computer Aided Production, Faculty of Mechanical Engineering, Technical University of Košice, Masiarska 74 St., 04001 Košice, Slovakia
Volodymyr Krasinskyi   

Łukasiewicz Research Network – Institute for Engineering of Polymer Materials and Dyes, M. Skłodowska-Curie 55 St., 87-100 Torun, Poland
Adv. Sci. Technol. Res. J. 2022; 16(4):138–146
The paper presents the results of studies of adhesive strength under shearing, thermal stability, and the content of the gel fraction of adhesive materials and enamels based on modified phenol-formaldehyde resins. Epoxy resin and polyvinylpyrrolidone were used to modify the phenol-formaldehyde resin. The influence of the content of components in the phenol-formaldehyde composition and the curing conditions on the properties of the obtained adhesive materials and coatings is analyzed. The effect of polyvinylpyrrolidone on internal stresses in adhesive joints has been established. By mathematical planning, the isolines of the characteristics of composite materials based on modified phenol-formaldehyde resin depending on their component’s compositions are plotted, and the regression coefficients are found, enabling one to get materials with predicted properties. From a technical and economic point of view, the following content of additives in modified phenol-formaldehyde resin is most optimal: epoxy resin from 25 to 50 wt%, polyvinylpyrrolidone from 0.5 to 1.0 wt%, curing catalyst from 1 to 2.5 wt%.