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Environ Sci Pollut Res Int

Title:		Identification and analysis of odor-active substances from PVC-overlaid MDF
Author(s):		Dong H; Jiang L; Shen J; Zhao Z; Wang Q; Shen X;
Address:		"College of Material Science and Engineering, Northeast Forestry University, Harbin, China. Harbin University of Commerce, Harbin, China. College of Material Science and Engineering, Northeast Forestry University, Harbin, China. 1126431608@qq.com. Graduate School of Design, Harvard University, Cambridge, MA, USA"
Journal Title:		Environ Sci Pollut Res Int
Year:		2019
Volume:		20190518
Issue:		20
Page Number:		20769 - 20779
DOI:		10.1007/s11356-019-05263-2
ISSN/ISBN:		1614-7499 (Electronic) 0944-1344 (Linking)
Abstract:		"This study sought to identify volatile organic compounds (VOCs) and examine the characteristics of odor-active substances from polyvinyl chloride (PVC)-overlaid medium density fiberboard (MDF). A microchamber thermal extractor was used for sampling, gas chromatography-mass spectrometry was used to identify VOCs, and gas chromatography-olfactometry-mass spectrometry was used to analyze odor-active substances from PVC-overlaid MDF over 28 days. The results showed that 38 VOCs were identified from PVC-overlaid MDF, while only 23 odor-active substances were detected by gas chromatography-olfactometry, which indicated that some VOCs did not generate odor. The main VOCs released by PVC-overlaid MDF were aromatic hydrocarbons, ketones, and esters. There was a strong correlation between concentration and odor intensity of the main VOCs. When the total amount of odor-active substances was not significantly different, the overall odor intensity was determined by the intensity of the key odorants. The greater the intensity of the key odorants, the greater the overall odor intensity. There were eight main classes of odors from PVC-overlaid MDF: aromatic, fresh scent, fruity, sour, sweet, grassy, pungent, and special scent. Among them, the main odor characteristics were aromatic, sour, and fresh scent, which were primarily generated by toluene, ethylbenzene, phenanthrene, and dibutyl phthalate"
Keywords:		Construction Materials Gas Chromatography-Mass Spectrometry Odorants/*analysis Olfactometry Polyvinyl Chloride/*chemistry Volatile Organic Compounds/*analysis Analysis Characterization Gc-o Odor-active substances PVC-overlaid MDF VOCs;
Notes:		"MedlineDong, Huajun Jiang, Liqun Shen, Jun Zhao, Zheng Wang, Qifan Shen, Xiwei eng 2016YFD0600706/The release law of VOCs in wooden household materials/ Germany 2019/05/20 Environ Sci Pollut Res Int. 2019 Jul; 26(20):20769-20779. doi: 10.1007/s11356-019-05263-2. Epub 2019 May 18"