Abstract
Volatile organic compounds (VOCs) in wood furniture are an important factor that affects indoor air quality. In this study, radiata pine (Pinus radiata D. Don) was treated with sodium bicarbonate and ozone aqueous solution to reduce the VOC contents without sacrificing mechanical properties. The VOCs of radiata pine were identified by gas chromatography-mass spectrometry (GC-MS), and the functional group changes of wood samples were characterized by Fourier-transform infrared spectroscopy (FTIR). The results showed that the main VOCs of radiata pine include alkenes, aldehydes, and esters. The sodium bicarbonate and ozone treatments almost eliminated the VOC contents of radiata pine. The two treatments mentioned above had little effect on compressive strength and surface color of radiata pine.
Highlights
With the expansion of requirements for living quality, people have paid increasingly more attention to the impact of volatile organic compounds (VOCs) released from furniture, which is an important factor that affects indoor air quality
The results demonstrated that VOCs of the untreated radiata pine samples mainly included alkenes, aldehydes, and esters
The VOCs release of the sodium bicarbonate and ozone-treated samples decreased by 88.91% and 89.20%, respectively
Summary
With the expansion of requirements for living quality, people have paid increasingly more attention to the impact of volatile organic compounds (VOCs) released from furniture, which is an important factor that affects indoor air quality. As one of the most common materials for furniture, the release of VOC in wood and wood-based composites has attracted significant attention from researchers [1]. High concentrations of the total content of VOC (TVOC) are highly toxic to the human body [2]; many compounds in VOCs have carcinogenic risks [3]. VOCs in wood include alkenes, alcohols, aldehydes, and ketones [4], and the main VOC constituents of radiata pine are composed of α-pinenes and β-pinenes. Most children’s furniture in China is made of radiata pine; the reduction of the VOC content of radiata pine has great significance. Hyttinen et al [7]
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