Emissions of volatile organic compounds associated with painting methods and an estimation of the α-dicarbonyl formation potential

Abstract

This study was conducted to determine the emission characteristics of volatile organic compounds associated with coating methods including brush, roll, and spray. A concrete waterborne paint, three concrete oil-borne paints, and four wood oilborne paints were selected in this work. It was observed that the emission of volatile organic compounds from paints was affected by the coating methods. The emission time of volatile organic compounds from a spray painting process was faster than that of brush and roll painting. In contrast, the emission characteristics of volatile organic compounds from coating materials applied by brush and roller was statistically similar. The α-dicarbonyl formation potential in the indoor air according to the reaction of volatile organic compounds and OH radical was also estimated. It was observed that the concentration of alpha-dicarbonyl might reach 2.2 μg/m 3 (product A2, spray method). Spray method might help to control volatile organic compounds and the formation of α-dicarbonyl from coating process in the indoor environment more effectively than other methods because the accumulative emission of volatile organic compounds during spray coating process could be removed easily.

Development and Analysis of an In-Mold Coating Procedure for Thermoplastic Resin Transfer Molding to Produce PA6 Composites with a Multifunctional Surface

“…), but this is only possible after proper surface preparation (degreasing, roughening, adhesion improvement) due to the relatively low surface energy of polymeric materials. In most cases, these processes involve different materials for the base, coupling, and coating layers, which complicates the recyclability of complex products and typically results in high VOC (Volatile Organic Compounds) emissions [27]. A solution to this problem is In-Mold Coating (IMC), which is mainly used in compression molding, injection molding or conventional RTM [28,29].…”