Abstract
The objective of this study is to compare the effect of selected operating factors on the mechanical properties of epoxy adhesive compounds aged in salt water. Five different water environments were tested: tap water, normal seawater (reference salinity value), seawater with double reference salinity value, seawater with half of the reference salinity and seawater with a quarter of the reference salinity value. Samples of two different adhesive compounds were prepared using the epoxy resin and triethylenetetramine curing agent. One of the compounds was filled with calcium carbonate. The samples were aged in five different water environments for three months, one month and one week, respectively. Mechanical properties of the cured adhesive compound samples were determined via strength tests performed on the Zwick/Roell Z150 testing machine in compliance with the EN ISO 604 standard. The objective of the experiments was to determine the effect of different seawater environments on selected mechanical properties (including strength) of the fabricated adhesive compounds.
Highlights
Properties of materials are of crucial importance in engineering
Reactive sites are formed by epoxy groups, and the lack of ester groups means that the epoxy-based polymer sites are formed by epoxy groups, and the lack of ester groups means that the epoxy-based polymer sites are formed by epoxy groups, and the lack of ester groups means that the epoxy-based polymer has developed a visible, irregularly modification its surface, around which small masspolymer losses sites are formed by epoxy groups,shaped and the lack of esterongroups means that the epoxy-based chain has excellent water resistance (as(as well as as chemical agents)
The experiments have determined which of the tested epoxy adhesive compounds has the highest mechanical properties
Summary
Properties of materials are of crucial importance in engineering They play a fundamental role in the selection of elements for different types of structures and machines. These components should have very high fatigue strength and resistance to various environments in which they will be used. Epoxy-resin-based adhesive compounds are used for manufacturing elements and for joining them [1,2,3,4]. These compounds are applied in many branches of industry, predominantly in the aviation and marine industries. Epoxy compounds have very good mechanical properties such as strength and rigidity
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