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Chemically Modified Sugarcane Bagasse for Innovative Bio-Composites. Part One: Production and Physico-Mechanical Properties

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Journal of Renewable Materials 2024年第10期12卷 1715-1728页

作者： Peyman Ahmadi Davood Efhamisisi Marie-France Thévenon Hamid Zarea Hosseinabadi reza oladi Jean Gerard Department of Wood and Paper Science and Technology Faculty of Natural ResourcesUniversity College of Agriculture and Natural ResourcesUniversity of TehranKaraj***Iran CIRAD UPR BioWooEBMontpellierF-34398France BioWooEB University of MontpellierCIRADMontpellierF-34398France

Sugarcane bagasse is an agro-waste that could replace timber resources for the production of *** boards such as particleboard offer an issue for the use and recycling of poor quality timber,and these engineered products can overcome some solid wood limitations such as heterogeneity and *** offers an alternative to wood chips for particleboard production but present some disadvantages as well,such as poor physico-mechanical *** address these issues,bagasseﬁbers were treated with an innovative natural resin formulated with tannin and *** particles with different concentrations of resin(5%,10%,and 15%m/m)were exposed to temperatures of 40°C,60°C,80°C,and 100°C for resin *** types of tannin-based adhesives,including tannin formaldehyde,tannin/formaldehyde-furfural,and tannin hex-amine,were utilized for bonding the treated bagasse *** resultant panels were assessed for their physical and mechanical properties and compared to those produced using Melamine-Urea-Formaldehyde(MUF)*** density of the panels varied from 650 to 730 kg/m3 depending on the resin *** values for both modulus of elasticity and modulus of rupture increased as the resin concentration *** internal bonding values exhibited an increase with resin concentration up to a critical point,after which a decreasing trend was *** water absorption and thickness swelling were signiﬁcantly reduced with an increase in resin ***,the panels produced using MUF adhesive yielded the most favorable physico-mechanical ***,the panels made with tannin-based adhesives met the minimum requirements speciﬁed in the standard EN 312(speciﬁcations for uncoated resin-bonded particleboards)for application in dry *** analysis of formaldehyde emissions indicated that panels produced with tannin-based adhesives exhib-ited signiﬁcantly lower emissions compared to tho

关键词： Sugarcane bagasse particleboard tannin furfural physico-mechanical properties formaldehyde

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