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摘要
The composition, concentration and emission law of VOCs from five typical customized furniture plates were explored by using a 1m3 small environmental chamber under certain conditions. The results showed that 54 target compounds were identified from the five plates, and the main components were OVOCs and alkanes, accounted for 71.37%~85.77% and 11.79%~24.84%, respectively. The TVOCs concentration of different plates were quite different. The TVOCs concentration of veneer -medium density fiberboard(MDF) was as high as 836.49μg/m3, which was much higher than other boards, while it was the lowest in solid wood ecological board, which was the most environmentally friendly. The emission concentrations of VOCs from five kinds of boards were measured hourly. It was found that the relative emission concentrations of formaldehyde were as follows: veneer MDF > moisture-proof board > veneer particle board > solid wood ecological board > PVC blister board; the emission concentration of TVOCs (except formaldehyde) was as follows: veneer particle board > veneer MDF > PVC blister board > moisture-proof board > solid wood ecological board. In these five plates, formaldehyde, n-hexane and ethyl acetate were the main substances, and the concentration contribution of formaldehyde accounts for 40.44%~82.59% of TVOC. At the same time, based on VOCs emission characteristics from five kinds of plates, the traceability analysis of various compounds is helpful for the source control of VOCs pollution. ? 2022 Chinese Society for Environmental Sciences.
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