Document Type : Research Paper

Authors

1 Assistant Prof., Department of Wood and Paper Science and Engineering, Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Gonbad, I.R. Iran

2 Department of Wood and Paper Science and Engineering, Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Gonbad, I.R. Iran

Abstract

In this research, the manufacture of particleboard using lignocellulosic residues including wheat straw and tobacco stalks mixed with industrial wood chips were studied. The variable factors included the mixture of wheat straw and tobacco stalks with industrial wood chips in four levels 0/100, 20/80, 40/60 and 60/40 (In any combination, according to the desired levels, tobacco stalks and wheat straw were used equally) and the amount of urea formaldehyde resin was at two levels 12 and 14% of the dry weight of the wood chips. The results showed that by increasing the mixture of wheat straw and tobacco stalk up to 60 percent, the physical and mechanical properties of the boards decreased significantly. But increasing the amount of adhesive consumption up to 14 percent had a positive impact on the physical and mechanical properties of the boards and improved internal bonding, bending strength and modulus of elasticity and dimensional stability of the boards. It means that by increasing the use of this type of wastes up to 40 percent with an increase in the amount of UF adhesive up to 14% can be produced the boards with the mechanical properties at standard level.

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Main Subjects

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