| Titre : |
Influence of temperature on formaldehyde emission parameters of solvent-based coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Yaoyao Tan, Auteur ; Yatao Zhi, Auteur ; Meiping Gao, Auteur ; Zhanjun Cheng, Auteur ; Beibei Yan, Auteur ; Lei Nie, Auteur ; Guanyi Chen, Auteur ; Li'an Hou, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 677-684 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Air intérieur -- Analyse
Air intérieur -- Pollution
Emission de polluants
Enrobage (technologie)
Formaldéhyde
Revêtement en phase solvant:Peinture en phase solvant
Revêtements -- Effets de la température
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Temperature affects the emission behavior of formaldehyde from coatings. Initial emittable concentration (C0), diffusion coefficient (Dm) and partition coefficient (K) are three key parameters for characterizing the formaldehyde emission from coatings. However, recent research concerning temperature effect on volatile organic compound (VOC) emission from coatings mainly focused on the influence on gas-phase concentration or emission rate, and few studies were conducted on the correlation between temperature and key emission factors (C0, Dm and K). In this work, formaldehyde emission from a solvent-based coating was measured at 10, 15, 20 and 25°C in a 30 L environmental chamber. From 10 to 25°C, C0 increased by 2.35-fold, and positive linear correlation was observed between ln(C0*T0.5) and 1/T. An empirical equation characterizing temperature effect on K was derived. Temperature effects on Dm were negligible. Through the obtained equations that can characterize the correlation between temperature and the key parameters, C0 and K at different temperatures from this work can be easily calculated. This study would be useful for predicting emission behavior of formaldehyde from solvent-based coatings and better understanding the influence of temperature. |
| Note de contenu : |
- MATERIALS AND METHODS : Experimental scenario - Derivation of the key parameters
- RESULTS AND DISCUSSION : Values of three key parameters - Influence of temperature on formaldehyde emission - Influence of temperature on initial emittable concentration - Influence of temperature on partition coefficient
- Table : Experimental settings and measured characteristic parameters of formaldehyde emission from the paint |
| DOI : |
https://doi.org/10.1007/s11998-020-00432-2 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-020-00432-2.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35921 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 3 (05/2021) . - p. 677-684
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