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Information Journal Paper

Title

Investigation of fire resistance in modified paulownia wood with citric acid and comparison with different fire retardants

Pages

  547-562

Abstract

 Flammability is one of the most important parameters that limits the wood use. Therefore, it is important to improve the fire retardancy properties of wood. The aim of this study was to evaluate the effect of paulownia wood modification with citric acid and its comparison with borax and ammonium chloride on the Flammability. Test specimens were prepared and treated with solutions at 10% concentration in impregnation cylinder and empty cell procedure. Based on proposed treatment conditions, the treatment was performed by heating in oven at different temperature and times. The fire retardancy performance of the samples was evaluated by measuring different parameters. The effect of different fire retardants on water absorption and short-term swelling of the specimens was also studied. The fire test showed that by treating the samples with citric acid and other fire retardant materials, lower mass reduction, higher flame retardation time and longer ignition time were obtained. These findings were attributed to the formation of a protective carbon layer by citric acid and fire retardant materials. The flame retardant properties of borax treatment yielded better results than those using citric acid and ammonium chloride. In addition, water absorption and dimensional stability were improved by the presence of citric acid and fire retardant agents. The results of FTIR spectra showed that the carboxylic acid groups reacted with the hydroxyl groups of the wood and increased the weight of the samples. Changes in the crystallinity indices of cellulose, carbonyl and hydroxyl were also obtained from FTIR spectra.

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    • Cite

    APA: Copy

    Mehrandish, M.M., TALAEI, A., & REZVANI, M.H.. (2020). Investigation of fire resistance in modified paulownia wood with citric acid and comparison with different fire retardants. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 34(4 (69) ), 547-562. SID. https://sid.ir/paper/388213/en

    Vancouver: Copy

    Mehrandish M.M., TALAEI A., REZVANI M.H.. Investigation of fire resistance in modified paulownia wood with citric acid and comparison with different fire retardants. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2020;34(4 (69) ):547-562. Available from: https://sid.ir/paper/388213/en

    IEEE: Copy

    M.M. Mehrandish, A. TALAEI, and M.H. REZVANI, “Investigation of fire resistance in modified paulownia wood with citric acid and comparison with different fire retardants,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 34, no. 4 (69) , pp. 547–562, 2020, [Online]. Available: https://sid.ir/paper/388213/en

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