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Performance Evaluation of Novel Eco-Materials Composed of Millet Husks, Rice Husks, and Polystyrene

Open Journal of Composite Materials 2024年第1期14卷 33-43页

作者： Paul Damien Amadji Edem Chabi Valéry Kouandété Doko Céphas Houndedji Emmanuel Olodo Laboratory of Applied Energy and Mechanics (LEMA) Polytechnic School of Abomey-Calavi University of Abomey-Calavi Abomey-Calavi Benin Laboratory of Rural Engineering School of Rural Engineering National University of Agriculture Kétou Benin

Managing agricultural waste and expanded polystyrene (EPS) poses significant environmental and economic challenges. This study aims to create composites from millet husks, rice husks, and recycled EPS, using a manufacturing method that involves dissolving the polystyrene in a solvent followed by cold pressing. Various particle sizes and two binder dosages were investigated to assess their influence on the physico-mechanical properties of the composites. The mechanical properties obtained range from 2.54 to 4.47 MPa for the Modulus of Rupture (MOR) and from 686 to 1400 MPa for the Modulus of Elasticity in Bending (MOE). The results indicate that these composites have potential for applications in the construction sector, particularly for wood structures and interior decoration. Moreover, surface treatments could enhance their durability and mechanical properties. This research contributes to the valorization of agricultural and plastic waste as eco-friendly and economical construction materials.

关键词： bio-based composites Millet Husk Rice Husk Expanded Polystyrene Waste Valorization Sustainable Construction

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Properties of Different Chemically Treated Woven Hemp Fabric Reinforced bio-composites

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Journal of Renewable Materials 2022年第6期10卷 1505-1516页

作者： Arunjunai Raj Mahendran Günter Wuzella Stefan Pichler Herfried Lammer Wood K Plus-Competence Center for Wood composites and Wood Chemistry LinzA-4040Austria

The objective of this work is to carry out the chemical treatment for the hemp fabrics in a closed vacuum system and to prepare bio-based composites using treated hemp *** change in surface tension of the treated fabrics was measured using contact angle measurement and the wetting behavior using a ***-based composites were fabricated using bio-based epoxy resin and different chemically treated *** flexural strength and dynamic water absorption behavior of the composites were *** acetylated fabrics showed very good wetting behavior,and the contact angle values were marginally low compared to other treatment *** bio-based composites fabricated using maleic anhydride treated fabrics achieved the flexural strength of 148 MPa and the dynamic water absorption values were less than 6%.The acetylated and maleic anhydride treatment methods were effective chemical treatments for the hemp fabrics and they enhanced both the wettability and fiber-matrix *** chemical treatment methods that are carried out in the sealed environment can be utilized for all other natural fabrics that help overcome the moisture absorption behavior.

关键词： bio-based composites natural fiber chemical treatment mechanical properties

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