Production of Binderless Particleboard Using Rice Straw Pretreated with Liquid Hot Water

Abstract:

Bonding of agricultural lignocellulosic fibers can be improved by liquid hot water pretreatment. This work applied liquid hot water pretreatment to rice straw. The pretreated rice straw was used to make binderless particleboard. The effect of reaction temperature and residence time on the yield of cellulose pulps, chemical composition of rice straw, and modulus of rupture, internal bond and water absorption of the resulted binderless particleboard were investigated. The results indicated that the yield of cellulose pulps decreased with increasing reaction temperature and residence time, whereas the degradation of hemicellulose increased. The modulus of rupture and internal bond increased while water absorption of panels decreased as pretreatment severity increased. The optimum pretreatment condition, with 18.1 MPa of modulus of rupture, 0.240 MPa internal bond and 63.7% of water absorption of panels, occurred under 170°C temperature and 15 minute residence time.

• Periodical: Applied Mechanics and Materials (Volume 200)
• Pages: 331-334
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.200.331
• Online since: October 2012
• Authors: Peng Luo, Chuan Min Yang
• Keywords: Binderless Particleboard, Fiber, Liquid Hot Water, Pretreatment, Rice Straw

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