Étude des propriétés technologiques d’un composite bois-plastique élaboré au Bénin

Amadji, Togbé Armel; Adjovi, Edmond; Gérard, Jean; Barés, Jonathan; Huon, Vincent

doi:10.19182/bft2021.348.a36750

Cited by 5 publications

(3 citation statements)

References 17 publications

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“…In [74], a material made of teak sawdust mixed with recycled PS pulp was produced (shown in Figure 31). The properties of this composite material varied significantly with the grain size of the sawdust used.…”

Section: Sustainable Ps-based Materials Designmentioning

confidence: 99%

“…The compression modulus of elasticity ranges from 270-470 MPa, and compressive strength from 6 to 9 MPa. This composite material could thus be considered for use as a wood substitute for non-load-bearing products such as shuttering for light construction [74]. Functional materials with high value-addition were obtained using recycled PS via a cost-effective and facile dip-coating method [72].…”

Section: Sustainable Ps-based Materials Designmentioning

confidence: 99%

Section: Sustainable Ps-based Materials Designmentioning

confidence: 99%

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Several environmental and techno-economic assessments highlighted the advantage of placing polystyrene-based materials in a circular loop, from production to waste generation to product refabrication, either following the mechanical or thermochemical routes. This review provides an assortment of promising approaches to solving the dilemma of polystyrene waste. With a focus on upcycling technologies available in the last five years, the review first gives an overview of polystyrene, its chemistry, types, forms, and varied applications. This work presents all the stages that involve polystyrene’s cycle of life and the properties that make this product, in mixtures with other polymers, command a demand on the market. The features and mechanical performance of the studied materials with their associated images give an idea of the influence of recycling on the structure. Notably, technological assessments of elucidated approaches are also provided. No single approach can be mentioned as effective per se; hybrid technologies appear to possess the highest potential. Finally, this review correlates the amenability of these polystyrene upcycling methodologies to frontier technologies relating to 3D printing, human space habitation, flow chemistry, vertical farming, and green hydrogen, which may be less intuitive to many.

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Section: Sustainable Ps-based Materials Designmentioning

confidence: 99%

Section: Sustainable Ps-based Materials Designmentioning

confidence: 99%

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Effect of alkaline treatment on hard vegetable shells on the properties of biobased abrasive wheels

Defo,

Harzallah,

Nicodème Tagne Sikame

et al. 2024

Composites Part A: Applied Science and Manufacturing

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Effect of Reinforcement Ratio and Particle Size on the Physical and Mechanical Performance of Epoxy Matrix Panels and Waste Wood from Iroko Chlorophora excelsa from Cameroon

Takoumbe,

Zobo Mfomo,

Biwole

et al. 2024

Advances in Materials Science and Engineering

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The use of local materials developed from natural reinforcements remains a major challenge for many researchers in the development of the industry and the fight against pollution. The wood industry generates large quantities of environmental waste, including Iroko wood. To give Iroko a second life, this study uses Iroko sawdust waste to make an epoxy matrix composite material. The composite was produced using a cold pressing technique based on moving the top and bottom plates to a thickness of 10 mm. On this basis, three particle sizes [t < 0.35[, [0.35–0.63[, and [0.63–1[ were used, as well as three reinforcement (R)/matrix (M) percentages of 50R/50M, 60R/40M, and 70R/30M, where R is the reinforcement percentage and M is the matrix percentage. The physical tests, apparent and real density, porosity, moisture content, water absorption rate, absorption and desorption kinetics, diffusion theory, and activation energy were determined by the gravimetric method. A three-point bending test was carried out in accordance with the ASTM D790 for mechanical tests. The results show that the addition of Iroko particles lightens the material by reducing its density. The hydrophilic nature of Iroko particles increases the absorption rate and porosity, with good diffusion capacity as the particle size and percentage increase. The material produced can be light and porous, with possible applications in thermal insulation. In terms of kinetics, Verma et al.’s model best correlates the experimental desorption points for the 3 isotherms, while Page’s model best correlates the water absorption points. The mechanical results show that Young’s modulus and stress at break decrease with an increase in the reinforcement percentage and particle size. The mechanical results can be used to define the material’s applications in construction and furniture. In accordance with the EN312 standard, the composites produced can be classified as type 2 lightweight materials, suitable for use in dry and damp areas.

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Étude des propriétés technologiques d’un composite bois-plastique élaboré au Bénin

Cited by 5 publications

References 17 publications

Upcycling Polystyrene

Upcycling Polystyrene

Effect of alkaline treatment on hard vegetable shells on the properties of biobased abrasive wheels

Effect of Reinforcement Ratio and Particle Size on the Physical and Mechanical Performance of Epoxy Matrix Panels and Waste Wood from Iroko Chlorophora excelsa from Cameroon

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