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Temperature-sensitive microcapsules modification treatment to reduce formaldehyde emission from wood-based panels.
- Source :
- Wood Material Science & Engineering; Jun2023, Vol. 18 Issue 3, p810-818, 9p
- Publication Year :
- 2023
-
Abstract
- The formaldehyde emission performance of wood-based panels treated with temperature-sensitive microcapsules was evaluated in this study. Formaldehyde scavenger-filled microcapsules were synthesized by the emulsion-solvent method using ethylcellulose and poly(N-isopropylacrylamide) (PNIPAM) as shell materials containing urea. The results demonstrated that the temperature-sensitive microcapsules exhibited perfect core–shell structures at a core/shell/PNIPAM ratio of 2:2:1. The loading capacity and loading efficiency of the functional core material of the microcapsules reached 33% and 59%, respectively. Compared with untreated panels, panels based on the temperature-sensitive microcapsule scavenger had better performance in controlling free formaldehyde emissions, the formaldehyde emission of treated panels decreased by 42% and 41% at room temperature and 40°C, respectively. The results indicated that the reason why the wood-based panels had a long-term low-level emission was that the microcapsules showed different release behaviour at different temperature, so they have different release paths and release principles. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17480272
- Volume :
- 18
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Wood Material Science & Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 164198684
- Full Text :
- https://doi.org/10.1080/17480272.2022.2073471