Welcome to visit Scientia Silvae Sinicae,Today is

Scientia Silvae Sinicae ›› 2020, Vol. 56 ›› Issue (5): 130-142.doi: 10.11707/j.1001-7488.20200515

• Articles • Previous Articles     Next Articles

VOCs and Odor Emission from Lacquer Veneer Particleboards

Qifan Wang1,Jun Shen1,*,Bin Zeng1,Huiyu Wang1,Tianyu Cao1,Huajun Dong1,2   

  1. 1. College of Material Science and Engineering, Northeast Forestry University Harbin 150040
    2. College of Design Art, Harbin University of Commerce Harbin 150028
  • Received:2017-12-13 Online:2020-05-25 Published:2020-06-13
  • Contact: Jun Shen

Abstract:

Objective: This study was carried out to explore the release characteristics of VOCs and odor from lacquer veneer particleboards,at the same time,analyze the influence of environmental factors on the components of VOCs and odor in the equilibrium state. Two kinds of lacquer Fraxinus mandshurica veneer particleboards were analyzed by gas chromatography-mass spectroscopy/olfactometry in this research. The emission of VOCs and odors from different lacquer veneer particleboards was compared,and the basic data were provided for further odor research. Method: This paper established a single factor experiment matched to the appropriate environmental conditions to analyze the release rule of VOC and odor from nitrocellulose lacquer veneered particleboards and water based acrylic lacquer veneered particleboards under different environmental factors. On the one hand,the characteristic odor compound and their resources from lacquer particleboards were indentified. On the other hand,the effects of environmental factors on the VOCs and the odor release of lacquer particleboards were investigated. Finally,the VOCs and odor release of the two lacquer veneer particleboards were evaluated by the method of "synthetic index-olfactory evaluation method ". Result: Compared with nitrocellulose lacquer veneered particleboard,water based acrylic lacquer veneered particleboard has a lower TVOC concentration,less odor amount and lower total odor intensity. Aromatics and esters exceeded the standard most seriously in both kinds of boards. The main components of odor emission released from nitrocellulose lacquer veneered particleboards were aromatic,esters,and alcohols,whereas,those of water based acrylic lacquer veneered particleboard's were aromatics and alcohols. For different odorous compounds,there was no direct correlation between odor intensity and its concentration,but,for the same odorant compound,its concentration affected the odor intensity somewhat. Furthermore,with the increase of ratio of air exchange rate to loading factor,the TVOC emission concentration and total value of odor intensity from two kinds of lacquer particleboards declined,but it increased with the temperature increase. At the same time,when relative humidity increased,the TVOC emission concentration and total value of odor intensity from nitrocellulose lacquer veneered particleboards increased,but the TVOC emission concentration and total value of odor intensity from water based acrylic lacquer veneered particleboards declined. The proportion of the odor substance concentration in the total VOCs concentration decreased with the increase of temperature and relative humidity. The ratio of air exchange rate to loading factor had a little effect. Conclusion: Gas chromatography-mass spectroscopy/olfactometry could be used as a method to detect the odor from wood-based panels and furniture materials. Compared with nitrocellulose lacquer veneered particleboard,water based acrylic lacquer veneered particleboard might be a more suitable material for interior decoration. The total odor intensity and odor grade of two kinds of painted veneer particleboard might be fitted by Gaussian function.

Key words: nitrocellulose lacquer veneered particleboard, water based acrylic lacquer veneered particleboard, volatile organic compounds(VOCs), odor, environmental factors, synthetic index-olfactory evaluation method

CLC Number: