Characterization of total volatile organic compound emissions from finished solid wood using an environmental chamber

Characterization of total volatile organic compound emissions from finished solid wood using an environmental chamber


English :
Solvent-based finishes used for solid wood furniture involve exposure of workers and customers to volatile organic compounds. This study was to characterize emission parameters of total volatile organic compounds from five different types of solid wood products: urethane-coated, lacquer-coated, acrylic-coated, gloss white-painted, and matte white-painted. Emission experiments were conducted using a 10-liter environmental test chamber, and all test finished wood samples were prepared by professional furnitureworkers. Emission parameters were quantified by fitting the experimental time-dependent concentrations to the two-decaying sources model using a non linear regression method. The quantified emission rate constants of the fast-decaying phase were 5.09, 5.09, 6.84, 4.71, and 0.43 1/h for the urethane-coated, lacquer-coated, acryliccoated, gloss white-painted, and matte white-painted products, respectively, while the emission rate constants for the slow-decaying phase were 3.12?10-2, 2.23?10-2, 1.48?10-2, 2.14?10-2, and 1.2?10-3 1/h, respectively. The matte white-painted wood exhibited the higher total quantities of emitted organic species than other finished wood products by 4-16 times for the fast-decaying emission and by 5-18 times for the slow-decaying emission.