Influence of temperature on formaldehyde emission parameters of dry building materials |
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| Institution: | 1. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;2. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China;3. Beijing Key Laboratory for Indoor Air Quality Evaluation and Control, Beijing 100084, China;1. Department of Civil and Environmental Engineering, Virginia Tech, 418 Durham Hall, Blacksburg, VA 24061-0246, USA;2. School of Mechanical Engineering, Tongji University, Shanghai, PR China;1. Department of Architecture and Architectural Engineering, Yonsei University, Seoul 03722, Republic of Korea;2. Department of Environmental Science, Kangwon National University, Chunchon 24341, Republic of Korea;3. Department of Chemistry, Kyonggi University, Suwon 16227, Republic of Korea;4. Department of Architectural Engineering, Seoil University, Seoul 02192 Republic of Korea;5. National Agenda Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea;6. Korea Air Cleaning Association, Seoul 06162, Republic of Korea;1. School of Architecture and Urban Planning, Nanjing University, Nanjing 210093, PR China;2. Department of Building Science, Tsinghua University, Beijing 100084, PR China;1. Pôle RIME C2MA, Ecole des Mines d’Alès, Hélioparc, 2 Avenue Pierre Angot, 64053 Pau Cedex 9, France;2. NOBATEK, 67 Rue de Mirambeau, 64600 Anglet, France;3. Laboratoire Thermique Energétique et Procédés, Université de Pau et des Pays de l’Adour, BP 7511, 64075 Pau, France |
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| Abstract: | The diffusion coefficient, D, partition coefficient, K, and the initial volatile organic compounds (VOCs) in dry building materials, are the three key parameters used to predict the VOC emissions. D and K may be strongly affected by temperature. We have developed a new and simple method, the C-history method, to measure the diffusion coefficient, D and the partition coefficient, K of formaldehyde in dry building materials at temperatures of 18, 30, 40 and 50 °C. The measured variations of the diffusion coefficients and the partition coefficients with temperature for particle board, vinyl floor, medium- and high-density board are presented. A formula relating the partition coefficient and related factors is obtained through analysis. This formula can predict the partition coefficient in principle and provide an insight for fitting experimental data, and it agrees well with the experimental results. |
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