Quantity of Formaldehyde in Particleboards

Abstract:

The objective of this study was to determine formaldehyde emission considering the following factors; indoor air temperature, type of resin, and thickness of particleboard. Formaldehyde emissions from particleboards were analyzed using the JIS A 1460 and the Perforatored EN 120 methods. Three sets of experiments were conducted to investigate effects on formaldehyde emission from particleboard samples due to these factors. For the first factor, test specimens were conditioned in a dry oven at 20, 35, and 40 °C for a period of 1, 2, 3, 5, and 7 days, emission were analyzed using the JIS A 1460 method. The second factor, type of resin, formaldehyde emissions and remaining were analyzed by the JIS A 1469 and the Perforatored EN 120 methods. For the third factor, thickness of particle board, samples with different thickness were used in the experiments. Results of the first factor indicated that the highest formaldehyde emission was obtained at the condition temperature of 20 °C followed by the emissions at the condition temperature of 35 °C and 40 °C, respectively. In addition, formaldehyde emissions decreased as the condition time increased. Results of the second factor showed that for the JIS A 1469 method, particleboards made with the 10L617A (UF:E1) resin emitted the lowest amount of formaldehyde. While particleboards made with the 10L631 (MUF:E2) resin emitted the lower amount of formaldehyde as compared to the particleboards made with the 10L686 (UF:E2) resin. For the Perforatored EN 120 method, formaldehyde remaining in samples made with UF:E0 was lowest followed by samples made with UF:E1 and UF:E2, respectively. Results for the third factor indicated that the thickness of particleboard has no significant effect on formaldehyde emission. This effect was found for both methods of analysis.

• Periodical: Advanced Materials Research (Volumes 931-932)
• Pages: 665-670
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.931-932.665
• Online since: May 2014
• Authors: Wipawee Khamwichit, Wipada Sanongraj*
• Keywords: Formaldehyde Emission, Formaldehyde Remaining, JIS a 1460 Method, Particleboard, Perforatored EN 120 Method

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