To reduce the problem of volatile organic compounds (VOCs) and odor emissions from veneered particleboards coated with lacquer, this study focused on identifying odorant compounds and exploring the potential influence of environmental factors on VOCs and odor emissions. Veneered particleboards coated with water-based lacquer were studied via gas chromatography-mass spectroscopy/olfactometry, and, in total, 10 different odor types were identified, which were concentrated in 15 to 23 min. The predominant odor impressions were fragrant, leather, and soybean paste, and the main odorant compounds identified were aromatics and alcohols. The total VOCs (TVOC) concentration and total odor intensity increased as the temperature increased, but decreased as the ratio of relative humidity and the air exchange rate to the loading factor increased. The ratio of the air exchange rate to the loading factor had a greater impact on the VOCs released from the veneered particleboard than did either temperature or relative humidity, and, therefore, this ratio should be the primary factor considered during storage. The proportion of the odorant concentration to the TVOC concentration decreased with an increase in temperature and relative humidity, whereas the ratio of the air exchange rate to the loading factor had little effect. To accelerate the release of VOCs and odors from veneered particleboard coated with water-based lacquer before its indoor use and, thus, to reduce negative effects on humans, the following conditions were found to be optimal: 40 °C, 40% RH, and 1.0 m3 h−1 m−2 (ratio of air exchange rate to loading factor).

Volatile organic compounds and odor emissions from veneered particleboards coated with water-based lacquer detected by gas chromatography-mass spectrometry/olfactometry

To solve the odor emission problem of lacquer veneer particleboards, as well as to identify the key odor compounds and their sources, alkyd resin enamel-coated particleboards were studied via gas chromatography-mass spectroscopy-olfactometry A single-factor experiment was established under various environmental conditions The odor-causing compounds were identified, and the effects of environmental factors on the volatile organic compounds (VOCs) and odor emissions were investigated The results showed that the main odor substances released from the alkyd resin enamel-coated particleboard were aromatic compounds, aldehydes, and alkanes, which are typically low in toxicity The total volatile organic compounds concentration and total odor intensity increased as the temperature and relative humidity increased, but decreased as the air exchange rate to loading factor ratio increased The temperature had a greater impact on the release of VOCs from the alkyd resin enamel-coated particleboard than either the relative humidity or air exchange rate to loading factor ratio The odor substances concentration increased with an increase in the temperature, while the relative humidity and air exchange rate to loading factor ratio had little effect

https://ojs.cnr.ncsu.edu/index.php/BioRes/article/download/BioRes_13_3_6837_Wang_Volatile_Organic_Compounds_Particleboard/6276

Volatile Organic Compounds and Odor Emissions from Alkyd Resin Enamel-coated Particleboard

At certain concentrations, volatile organic compounds (VOCs) may harm people's health. This article introduces a new rapid detection method for testing VOCs released from three-layer plywo...

Influence of Environmental Factors on Volatile Organic Compound Emissions from Plywood Tested by a Rapid Detection Method

It is well known that the release of volatile organic compounds (VOCs) and odors from wood-based panels is harmful to human health. The VOCs emitted from decorative wood-based panels have ...

Characterization of Odorants in Particleboard Coated with Nitrocellulose Lacquer under Different Environment Conditions

Effects of environmental conditions on the emission and odor-active compounds from Fraxinus mandshurica Rupr

A variety of volatile organic compounds ( VOC) ,released from bamboo flooring samples were monitored using auto thermal desorption ( ATD) and gas chromatography/mass spectrum ( GC/MS) . The double exponential attenuation model was used to fit these VOC releasing curves. The results showed that increasing the temperature greatly affected phase-one VOC emissions,dramatically increasing the initial emission rates. Increasing the humidity seemed to inhibit the VOC emissions at the beginning,but later increased VOC emissions in phase two.

Zhang Gui-zhen

Papers

Emission Study of Volatile Organic Compounds Released from Bamboo Flooring