The effect of alkali treatment and different amounts of resin on the physical and mechanical properties of particleboard made from bagasse

Document Type : Research Paper

Authors

1 M.Sc. Graduated of Wood Composite Products, Gonbad Kavous University, Gonbad Kavous, I.R. Iran

2 Assist., Prof., of Wood and Paper Science and Technology, Gonbad Kavous University, Gonbad Kavous, I.R. Iran

Abstract

In this research,the effect of alkali treatment and different amounts of resin on the physical and mechanical properties of particleboard made from bagasse were investigated. Bagasse particles were treated with 5% hydroxide sodium for 120 minutes. In this research, bagasse (with and without alkali treatment) and Urea formaldehyde resin in three different levels (8, 10, 12 percent of dry weight of raw material) as well as ammonium chloride was used as a catalyst at 2 percent level of the dry weight of adhesive. The results showed that with increasing resin amounts, bending strength, modulus of elasticity and internal bonding of boards increased. The mechanical properties of the particleboards made from treated bagasse were superior to the relevant untreated bagasse. Water absorption and thickness swelling after 2 and 24 hours immersion in water decreased with alkali treatment. Compared with the properties of the boards produced by EN standard, bagasse (without alkali treatment) and the maximum amount of urea formaldehyde resin can be used for general purpose boards (Type P1). But when bagasse is treated with alkali even with the minimum amount of urea formaldehyde resin, it can be used for general purpose boards (Type P1) to be used in dry conditions.

Keywords

References

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Forest and Wood Products
Volume 73, Issue 3
November 2020
Pages 343-351

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