Effect of Ammonia Fumigation Treatment on Wood Color and Chemical Composition

Autor: Weigang Zhang, Minzhen Bao, Weisheng Sun, Lei Huang, Liang Cheng
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Polymer Science, Vol 2021 (2021)
Druh dokumentu: article
ISSN: 1687-9422
1687-9430
DOI: 10.1155/2021/5550800
Popis: Betula alnoides was used as a test material to study the effect of ammonia fumigation treatment on wood color and chemical composition. The effects of concentration, temperature, and duration of ammonia fumigation on wood color were studied. The properties of the material were studied using contact angle measurements, X-ray diffraction, Fourier-transform infrared spectroscopy, and dynamic thermomechanical analysis. In general, the color difference of the wood increased with the concentration of ammonia used in the fumigation process, treatment temperature, and treatment duration. After ammonia fumigation treatment, the chemical composition of hydroxyl and carboxyl groups in the wood was reduced. We concluded that ammonia fumigation treatment decreased material wettability and dynamic mechanical rigidity and increased the degree of crystallinity in wood.
Databáze: Directory of Open Access Journals
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