Author:
Miyafuji Hisashi,Fujiwara Yoshiyuki
Abstract
Abstract
Ionic liquids (ILs) have been investigated for their potential as reagents for enhancing the fire resistance of wood. The following ILs were in focus: 1-ethyl-3-methylimidazolium bromide, 1-ethyl-3-methylimidazolium tetrafluoroborate, and 1-ethyl-3-methylimidazolium hexafluorophosphate ([C2mim][PF6]). Supposedly, these ILs do not dissolve or degrade wood components to a large extent. No morphologic changes were observed in any IL-treated wood samples, but they showed an enhanced fire resistance compared with that of untreated wood. Scanning electron microscopy and energy-dispersive X-ray analysis demonstrated that the ILs are penetrated into the cell walls. The wood treated with [C2mim][PF6] exhibited the highest fire resistance based on thermogravimetric and differential thermal analyzer studies: it was more resistant against flaming at approximately 350°C and the subsequent glowing at higher temperatures. This enhanced fire resistance was interpreted by dehydration in the presence of the ILs under observation. In general, ILs are promising reagents for improving the thermal properties of wood.
Reference84 articles.
1. Homogeneous acetylation of cellulose in a new ionic liquid;Wu;Biomacromolecules,2004
2. Disintegration and dissolution kinetics of wood chips in ionic liquids;Viell;Holzforschung,2011
3. Synthesis and evaluation of phosphortriamidates in wood for thermal and fungal decay protection;Chen;Holzforschung,2008
4. Chemical mechanism of fire retardance of boric acid on wood;Wang;Wood Sci Technol,2004
5. Ionic liquids for clean technology;Seddon;Chem Technol Biotechnol,1997
Cited by
19 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献