INVESTIGATION OF THE EFFECT OF ZEOLITES ON THE TECHNOLOGICAL PROPERTIES OF ADHESIVES

Abstract

The article is devoted to the analysis of the effect of the addition of zeolites on the properties of adhesives used in the woodworking industry. Zeolites with adsorption and catalytic properties were used as modifiers of adhesive systems. This work contributes to the creation of environmentally friendly adhesives for the woodworking industry, reducing the impact on the environment. The aim of the study is to modify adhesive compositions with different concentrations of zeolite and to study their effect on technological parameters. The methods of synthesis of modified adhesives and methods of their testing are described. The results show that the introduction of zeolites into the composition of adhesives accelerates the gelatinization process due to the catalytic action of alkali metal oxides contained in aluminosilicates. This reduces the polycondensation time and allows you to maintain the performance of the CF-LT-15 glue for 89 hours, which corresponds to technological standards. However, an increase in the size and concentration of aluminosilicate particles increases the conditional viscosity of the adhesive from 52 to 95 seconds, which complicates its application to substrates. In this regard, it is recommended to limit the filler content to 8 mass parts. This article summarizes the results of the study and offers recommendations for the industrial use of modified adhesives. The results may be of interest to both the scientific community and the woodworking industry, which is striving to create more efficient and environmentally friendly adhesives.