Citric acid, an environmentally friendly adhesive and wood impregnation material-review of research

Citric acid's potency to be adhesive is proven with an increasing quality of product bonding resulted from wood and other lignosellulosic materials. Wood waste, bagasse, sorghum and corn stalks, and bamboo are quality particleboard materials after addition of 20% citric acid. Moulding made of a...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-08, Vol.593 (1), p.12009
Main Authors: Cahyono, T D, Syahidah
Format: Article
Language:English
Subjects:
Acids
Bagasse
Bamboo
Bark
Bond strength
Citric acid
Density
Hydroxyl groups
Mechanical properties
Molding (process)
Particle board
Sorghum
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Summary:Citric acid's potency to be adhesive is proven with an increasing quality of product bonding resulted from wood and other lignosellulosic materials. Wood waste, bagasse, sorghum and corn stalks, and bamboo are quality particleboard materials after addition of 20% citric acid. Moulding made of a mixture of tree bark and citric acid with the same concentration is also able to pass repeated boiling test without having any damage. Ester bond between wood's hydroxyl group and citric acid's hydroxyl group is formed at 180ºC and gets more optimal as the pressing temperature increases during production process. This results in an increase of board's physical-mechanical properties pursuant to the standard. Some researches remain presenting non-standard test parameters and this is a challenge to be answered with further research. The density of Samama wood impregnated with 10% citric acid has its density increased between 17.11% and 20.13%. Samama wood does not experience a recovery of set after it has been pressed for 50 minutes at 180°C.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/593/1/012009