Welcome to visit Scientia Silvae Sinicae,Today is

Scientia Silvae Sinicae ›› 2020, Vol. 56 ›› Issue (7): 135-141.doi: 10.11707/j.1001-7488.20200714

Previous Articles     Next Articles

Evaluation of Effects of VOCs Released by MDF on Indoor Air Quality

Liqun Jiang,Zheng Zhao,Jun Shen*,Juan Meng,Huajun Dong   

  1. College of Material Science and Technology, Northeast Forestry University Harbin 150040
  • Received:2018-04-12 Online:2020-07-25 Published:2020-08-11
  • Contact: Jun Shen

Abstract:

Objective: By evaluating the effects of VOCs released from MDF on indoor air quality(IAQ), the maximum loading capacity of MDF when it was used alone indoors was estimated. Method: Unfinished MDF, PVC facing MDF and melamine finishing MDF were selected as research objectives, the 1 m3 climate chamber was used to simulate indoor environment and GC-MS were used to analyze VOCs concentration changes of MDF during one cycle. The main pollutants released by MDF were determined through establishing single factor index model, and the improved Shen model was used to make a comprehensive evaluation of possible pollution caused by MDF to the indoor environment. Result: The results showed that when the indoor environment was under the test conditions of this climate chamber, the main pollutants released by unfinished MDF were esters, aromatic hydrocarbons and olefins. The main pollutants released by PVC facing MDF and melamine finishing MDF were both aromatic hydrocarbons and esters. After the release of VOCs reached an equilibrium state, when melamine finishing MDF was used alone indoors, the indoor air quality was grade Ⅰ, being suitable for living. In the initial stage of release, when unfinished MDF or PVC facing MDF were used alone indoors, the indoor air quality were grade Ⅴ and grade Ⅳ, which were seriously polluted. After the release of VOCs became stable, the indoor air quality was all grade Ⅱ, which met the living conditions. Under the premise of ensuring that the indoor air is not polluted, the maximum loading capacity of control MDF, PVC facing MDF and melamine finishing MDF were 1.5, 1.8 and 3.2 m2·m-3, respectively. Conclusion: The evaluation of the impact of volatile organic compounds released from MDF used on indoor air quality was quite satisfactory. After the release of volatile organic compounds achieved a steady state, the indoor air quality where the MDF was used alone, achieved a pollution-free standard. Under the premise of guaranteeing that the indoor air is not polluted, the maximum loading capacity of control MDF, PVC facing MDF and melamine finishing MDF were 1.5, 1.8 and 3.2 m2·m-3, respectively.

Key words: MDF, VOCs, indoor air quality (IAQ), major pollutants, comprehensive evaluation

CLC Number: