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    particleboards. Various concentrations of two types of adhesive—polymeric diphenylmethane diisocyanate (MDI) and urea-formaldehyde (UF)—were separately combined with four types of peanut hull particles (fine, mixed, coarse particles, and peanut hull powder) to manufacture particleboards with a certain target density. The confidence level of the effect of the selected production parameters on the physical and mechanical properties of the panels was evaluated. The results showed that increasing the adhesive mass percentage significantly improved the dimensional stability of the boards. A better mechanical performance was achieved for the MDI-bonded boards compared with the UF-bonded boards. Superiorbonding between the MDI adhesive and the peanut hulls withdifferent particle geometries was also observed; the peanut hullpowder and coarse particles were unsuitable for the manufacturingof panels, due to the risk of an internal blowout. The water resistanceof the panels was poor, whereas the mechanical strength of thepeanut hull particleboard met the class M-1 requirement of the ANSIA208.1 (2009) standard for wood particleboard.

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    Cheng, Xiyi; He, Xia; Xie, Jie; Quan, Peng; Xu, Kang; Li, Xianjun; Cai, Zhiyong. 2016. Effect of the particle geometry and adhesive mass percentage on the physical and mechanical properties of particleboard made from peanut hull. BioResources. 11(3): 7271-7281.


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    Peanut hull particleboard, urea-formaldehyde, polymeric diphenylmethane diisocyanate, physical and mechanical properties, microstructure, chemical composition

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