Utilization of Bone Adhesive to Produce Particleboards from Stems of Cotton Plant at the Pressing Temperature of 140&amp;deg;C

Kadja Kadja

doi:10.3844/ajassp.2011.318.322

Abstract

Problem statement: To value agricultural residues, a study was carried out to investigate mechanical and physical properties of particleboards produced from stems of cotton (Gossypium hirsutum L.) by using bone adhesive. Approach: In order to obtain particleboards with minimum physical and mechanical properties as required in the conventional standards for general purpose particleboards, the optimum pressure temperature and the optimum pressure time and density used in this study, were respectively 140°C, 10-15 min and about 0.6-0,671 g cm−3. The optimum value of bone adhesive used in particleboards was 10%. The Modulus Of Elasticity (MOE), Modulus Of Rupture (MOR), Traction strain (Rr) and water absorption were determined at the pressure temperature of 140°C. Results: The results revealed that the density of particleboards obtained from cotton plant at 140°C have neither notable influence on their mechanical properties, nor evolve in the same way as the constant mechanics of the particleboards. Conclusion: The bone adhesive could be used in particleboards production from the chips of cotton instead of the conventional binders which create the environmental problems.

Highlights

The demand for wood and other biomass-based particleboard materials have considerably increased due to the rate of population growth in the world; the world’s population is increasing at the rate of approximately 90 million people per year (Alma et al, 2005, Osarenmwinda and Nwachukwu, 2010)
The Modulus Of Rupture (MOR) values of the particleboards made from cotton stalks vary from 11.22-20.26 MPa
The modulus of rupture values of all the types of particleboards obtained in this study, were over the minimum modulus of rupture value required in ANSIA 208.1 1999 standard for general purpose particleboards which is 11 MPa (Fig. 1)

Summary

Introduction

The demand for wood and other biomass-based particleboard materials have considerably increased due to the rate of population growth in the world; the world’s population is increasing at the rate of approximately 90 million people per year (Alma et al, 2005, Osarenmwinda and Nwachukwu, 2010). A huge imbalance between supply and demand will be inevitable This is the predicted supply/demand scenario which we will face in the coming years (to 2010 and beyond) if nothing is done. Alternative fibers such as agrofibers and other plant fibers, recycling, more efficient conversion technologies and new products will play an important role in the wood fiber supply/demand map of the future (Osarenmwinda and Nwachukwu, 2010; Grigoriou et al, 2010)

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Conclusion