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Properties of Particleboard Made from Pretreated Particles of Rubberwood, EFB and Rubberwood EFB Blend

Zaidon A., and Norhairul Nizam A.M., and Mohd. Nor M.Y., and Abood F., and Paridah M.T., and Nor Yuziah M.Y., and Jalaluddin H. , (2007) Properties of Particleboard Made from Pretreated Particles of Rubberwood, EFB and Rubberwood EFB Blend. Journal of Applied Sciences, 7 (8). pp. 1145-1151. ISSN 1812-5654

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Official URL: http://www.ansijournals.com/jas/2007/1145-1151.pdf

Affiliations

Universiti Putra Malaysia, Faculty of Forestry
Forest Research Institute Malaysia, Wood Chemistry Programme
Malaysian Adhesive and Chemicals Sdn Bhd.

Abstract

The increasing ase of low formaldehyde emission adhesives such as Melamine Urea Formaldehyde (MUF) for bonding particleboard and other wood composites has led researchers to find ways to improve the durability of these products against biodeterioration agents A study on the treatment of particleboard through soaking of particles with 2% boric acid and 0.2% deltamethrin solutions was conducted. Particleboards were produced utilizing treated particles of rubberwood (clone RRIM 2002), Empty Fruit bunches (EFB) and rubberwood EFB blend (70:30). A low formaldehyde emission MUF resin (El-grade) was used as a binder. The boards were evaluated for resistance against termite and fungal attack, static bending, internal bonding and dimensional stability. The properties were compared willi those of untreated boards. The results of this study showed that the resistance of El grade MUF-bonded rubberwood and EFB particleboards against white rot fungus {Pycnoporous sanguiness) and termite {Coptotermes curvigmthus) can be enhanced through the proposed treatment method. The particleboards made from both rubberwood and rubberwood EFB blend require longer pressing time (> 6 mm). Boric acid offered better protection against white rot where as deltamcthrin was more effective gainst termite. The bonding quality of both treated rubberwood and rubberwood EFB blend boards was inferior compared to that of untreated board. Nonetheless, all treated EFB particleboards have higher IB. The strength and stiffness properties of rubberwood and rubberwood EFB blend particleboards for both dry and wet conditions were markedly reduced by the treatments The treatment increased dry MOR and MOE values of EFB boards but lowered the wet MOR and MOE values. The study also indicated that the presence of preservatives had markedly decreased the stability of rubberwood and rubberwood-EFB blend particleboards. [brace not closed]

Item Type:Journal
Keywords:Particleboard, Melamine urea formaldehyde, deltamethrin, boric acid, pycnoporous sanguiness, coptotermes curvignathus
Subjects:S Agriculture
Q Science, Computer Science
ID Code:1144

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