Study on Gypsum-Bonded Particleboard Reinforced with Jute Fibres
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Summary
This paper deals with the influence of length and content (based on a percentage of wood particles) of jute fibers on the physical and mechanical properties of gypsum-bonded particleboard (GPB). The length and amount of jute fibers had a significant effect on the internal bond strength (IB) and the modulus of rupture (MOR) of GPB. The addition of jute fibers did not obviously influence the modulus of elasticity (MOE), the thickness swelling (TS) or water absorption (WA). The values of IB were prominently high at the 3 mm length and 9–12% contents of jute fibers. The highest value of MOR was attained when the board was made with fibers 12 mm in length and a fiber content of 15%. The optimal amount of jute fibers reinforced the mechanical properties of GPB to achieve high performance. However, too much jute fiber reduced the IB, MOR (except for 12 mm length), and MOE of GPB. The values of TS and WA decreased gradually with an increase in the fiber content for all fiber lengths. In addition, the GPB gave very low weight loss on exposure to wood-decaying fungi of both Tyromyces palustris (TYP) and Coriolus versicolor (COV) as compared with untreated wood. It was concluded that the combination of 3 mm length and 9–12% content or 12 mm length and 15% content of jute fibers was the optimum for producing good performance of
Copyright © 2002 by Walter de Gruyter GmbH & Co. KG
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