Effect of lacquer decoration on VOCs and odor release from P. neurantha (Hemsl.) Gamble

The problem of odor caused by solid wood and its lacquer finish is increasingly serious. In this study, gas chromatography–mass spectrometry/olfactometry is used to analyze the volatile organic compounds and odor-active substances released from Phoebe neurantha (Hemsl.) Gamble lacquered with three t...

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Published inScientific reports Vol. 10; no. 1; p. 9565
Main Authors Wang, Qifan, Zeng, Bin, Shen, Jun, Wang, Huiyu
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 12.06.2020
Nature Publishing Group
Subjects
639/301
704/172
Alcohols
Aldehydes
Aromatic hydrocarbons
Benzaldehyde
Esters
Gas chromatography
Humanities and Social Sciences
Mass spectroscopy
multidisciplinary
Odor intensity
Odors
Olfactometers
Organic compounds
Polyurethane
Science
Science (multidisciplinary)
Toluene
VOCs
Volatile organic compounds
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Summary:The problem of odor caused by solid wood and its lacquer finish is increasingly serious. In this study, gas chromatography–mass spectrometry/olfactometry is used to analyze the volatile organic compounds and odor-active substances released from Phoebe neurantha (Hemsl.) Gamble lacquered with three types of lacquers, which is helpful in solving furniture’s odor problem. The results show that olefin emission of the three types of lacquer coating for P. neurantha (Hemsl.) Gamble decreases by more than 90% but that total volatile organic compound release increases. Among these, polyurethane (PU) lacquer could lead to a sharp increase of ester and aromatic hydrocarbons. Waterborne lacquer also releases numerous esters and alcohol compounds. Ultraviolet (UV)-curable lacquer has the greatest inhibitory effect on alcohols, aldehydes, and ketones and does not release esters or other compounds, but the release of toluene increases sharply. Benzaldehyde, toluene, and 1,3-dimethylbenzene are identified as key odor characteristic compounds of P. neurantha (Hemsl.) Gamble. Aromatic and fruity are the main odor characteristics of P. neurantha and three types of lacquer decoration studied. The overall odor intensity increases with lacquer treatment, especially PU lacquer. Among them, UV lacquer has the lowest overall odor intensity.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-66724-0