The effect of Bagasse alkaline treatment on medium density fiberboard properties

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HABIBI M.R.; MAHDAVI S.; PEZESHKI V.; Niromand F.; FAMILIAN H.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2020 | Volume:35 | Issue:3 (72) Page(s): 219-231

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Title

The effect of Bagasse alkaline treatment on medium density fiberboard properties

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Keywords

Alkaline treatmentQ1

hydroxide sodiumQ2

bagasseQ1

cookingQ1

resinQ1

Abstract

This study was carried out to investigate the effect of bagasse Alkaline treatment usig hydroxide sodium on medium density fiberboard (MDF) properties made from bagasse. For this purpose, Depithed bagasse from wet storage was used. Heat treatment was done in 10 liters digester with liquor to bagasse ratio of 10 to 1. Sodium hydroxide dosage was selected at 0%, 4% and 5% based on oven dry weight of bagasse. cooking time and temperature were 5 min and 170 ° C, respectively. Fiber morphology of prepared bagasse wqas determined using an optical microscope. Chemical components including holocelloulose and lignin contents were also determined. Liquor pH was mesearued before and after cooking. Urea formaldehyde (UF) resin was used as binder for MDF production. UF resin content was 12% based on oven dried weigth of bagasse. Bending properties (MOR & MOE), internal bonding and thickness swelling of the boards were determined based on EN-310, EN-319 and EN-317 standards, respectively. The results showed that the minimum fibers cutting and crushing were obtained using 4% Alkaline treatments. Lignin content decreased by increasing of sodium hydroxide content, but holocelloulose content increased. Also increasing of sodium hydroxide dosage resulted in increasing the bulk density. The maximum MOR, MOE and internal bonding of the boards were obtained at 4% sodium hydroxide dosage. Thickness swelling after 2 and 24 hours immersion of the boards was minimal at 4% sodium hydroxide dosage.

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APA: Copy

HABIBI, M.R., MAHDAVI, S., PEZESHKI, V., Niromand, F., & FAMILIAN, H.. (2020). The effect of Bagasse alkaline treatment on medium density fiberboard properties. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 35(3 (72) ), 219-231. SID. https://sid.ir/paper/396622/en

Vancouver: Copy

HABIBI M.R., MAHDAVI S., PEZESHKI V., Niromand F., FAMILIAN H.. The effect of Bagasse alkaline treatment on medium density fiberboard properties. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2020;35(3 (72) ):219-231. Available from: https://sid.ir/paper/396622/en

IEEE: Copy

M.R. HABIBI, S. MAHDAVI, V. PEZESHKI, F. Niromand, and H. FAMILIAN, “The effect of Bagasse alkaline treatment on medium density fiberboard properties,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 35, no. 3 (72) , pp. 219–231, 2020, [Online]. Available: https://sid.ir/paper/396622/en

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