2017/12/01 by Clément L’Hostis, Marie-France Thévenon, Emmanuel Fredon +1
Engineering · Materials Science · #Lignin and Wood Chemistry #Natural Fiber Reinforced Composites #Wood Treatment and Properties
paper · doi:10.1515/hf-2017-0081
crossref issued 2017/12/01 · crossref published 2017/12/01 · crossref published-online 2017/12/01 · openalex publication_date 2017/12/01 · crossref created 2017/12/01 · crossref published-print 2018/03/28 · crossref deposited 2021/04/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/27 · crossref indexed 2026/07/27
Abstract Beech wood has been treated by impregnation followed by heating at various temperatures with solutions containing citric acid (CA) or tartaric acid (TA) alone or in combination with glycerol (G), i.e. with G+CA and G+TA. The resulting modified woods were tested in terms of resistance to leaching, durability and dimensional stability. These properties are improved as a function of heating temperature, which leads to higher levels of poly-esterification involving grafting onto wood simultaneously with thermal degradation of wood. Dimensional stability of all treated wood was increased, but glycerol does not have a positive effect with this regard. Attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy contributed to understanding the effects of the different treatments. In situ polymerization of G+TA at 140°C increased the bending resistance, while G+CA polymerization does not compensate notably the mechanical weakness induced by thermal degradation of wood at higher temperatures. However, G+CA treatment is more efficient regarding leaching and decay resistance, than that with G+TA.