Effect of Test Methods on the Determination of Formaldehyde Emission from Plywood
The formaldehyde release of poplar plywood was tested with the closed sample, sampling position and water content as the influencing factors. The regularity and main ways of formaldehyde release from plywood were discussed. The results showed that 1 formaldehyde released from plywood was mainly concentrated on the edge of the edge, which was related to the area of the edge surface. The effect of the surface sealing on the release of formaldehyde was not significant. 2 The sampling position had no significant effect on the formaldehyde emission value. The formaldehyde emission of the specimen at the edge and center of the sheet is larger, and the other parts are not much different. 3 The moisture content of the plywood has a significant effect on the formaldehyde emission. When the moisture content is low, the moisture content of the specimen increases. Increased release.