Keyword: «sorption»

This article is devoted to researching, from the economic point of view, the effectiveness of the use of rush as a sorbent to absorb oil pollution. This work belongs to the fundamental and exploratory research. The influence of physical modification (grinding) on the process of oil and petroleum products absorption was evaluated. The cost of the product obtaining and the main technical and economic indicators as well as the cost of research work was identified.

This study presents the results of investigating the effect of moisture on the dielectric properties of epoxy materials. Measurements were carried out using gravimetric and dielcometric methods with an LCR meter at 12 kHz. A strong correlation was established between changes in dielectric permittivity and moisture content, confirming the applicability of the method for quantitative in situ moisture monitoring. Additionally, FTIR spectroscopy revealed signs of hydrolytic modification and plasticization of the epoxy network. The dielcometric method demonstrated high sensitivity to structural variations and proved to be a promising tool for diagnosing critical polymer components under operating conditions.

This paper presents comparative tests on the aging resistance of glass-fiber reinforced plastic VPS-53/T-25 under exposure to natural conditions in moderate warm and moderate climates for 12 months, as well as simulated impacts under two accelerated laboratory testing regimes. The tests were conducted to assess mechanical strength and moisture transfer properties.