Production of fiberboards from shives collected after continuous fiber mechanical extraction from oleaginous flax

Evon, Philippe; Barthod-Malat, Benjamin; Grégoire, M.; Vaca-Medina, Guadalupe; Labonne, Laurent; Ballas, Stéphane; Véronèse, Thierry; Ouagne, Pierre

doi:10.1080/15440478.2017.1423264

Cited by 13 publications

(19 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…phenolic based resins), although their effective use for such application remains uncertain on an industrial scale (Gosselink et al 2011). In particular, Kraft and organosolv lignin were recently used with success at a laboratory scale for producing fiberboards from rice straw thermos-mechanical pulp (Theng 2017) and raw shives (Evon et al 2018), the by-product of the continuous fiber mechanical extraction from oleaginous flax straw . Indeed, when adding 13% of Kraft lignin to the rice straw thermos-mechanical pulp the flexural strength increased from 40.4 to 53.5 MPa and adding 25% organosolv lignin (wt% relative to the raw shives), an important increase in the maximum flexural strength was evidenced (from 2.1 to 8.0 MPa), illustrating the role of this additional lignin as a natural binder inside the fibrous material.…”

Section: Introductionmentioning

confidence: 99%

Production of fiberboard from rice straw thermomechanical extrudates by thermopressing: influence of fiber morphology, water and lignin content

et al. 2018

Self Cite

View full text Add to dashboard Cite

The objective of this study was to investigate the influence of fiber morphology and molding parameters on mechanical and physical properties of fiberboards made from rice straw. The rice straw was thermo-mechanically treated using a twin-screw extruder. Water added at molding (0-20%), lignin content (0-25%), and liquid/solid ratio used for extrudate production (0.33-1.07) were the three parameters investigated. A Doehlert's experimental design was used to evaluate their influence on boards' properties. The results revealed that 0.4 liquid/solid ratio at extrudate production, 5% water added at molding, and 8.9% lignin content were the best tested conditions for bending properties. Density of fiberboard produced from these conditions was 1414 kg/m 3 (i.e. the densest board). Maximum flexural strength and elastic modulus were 50.3 MPa and 8.6 GPa, respectively. Thickness swelling and water absorption were 23.6% and 17.6%, respectively. Using the statistical analysis of the experimental design, a good compromise between density and flexural properties should be obtained from 0% water added, 25% lignin content, and 0.33 liquid/solid ratio at extrudate production. From the polynomial models, the corresponding boards' properties should be approximately 50 MPa maximum flexural strength, 6.0 GPa elastic modulus, 1102 kg/m 3 density, and 24% thickness swelling.

show abstract

Section: Introductionmentioning

confidence: 99%

Production of fiberboard from rice straw thermomechanical extrudates by thermopressing: influence of fiber morphology, water and lignin content

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…The hot pressing of hardboards was conducted using 400 tons capacity Pinette Emidecau Industrie (Chalon-sur-Saône, France) heated hydraulic press. The conditions were standard ones [13,30], i.e., 200 • C for the mold temperature, 20 MPa for the applied pressure, and 5 min for the molding time.…”

Section: Molding Of Insulation Blocks and Hardboardsmentioning

confidence: 99%

“…[25,26]. Especially, it has also recently been used as an alternative tool for the thermo-mechanical defibration of various agricultural by-products or those resulting from a first agro-industrial transformation such as rice straw [27,28], coriander straw [13,29], oleaginous flax shives [30,31], and sunflower bark [22], prior to hot pressing.…”

Section: Introductionmentioning

confidence: 99%

“…The function of defibration is to break down the lignins that protect cellulose and hemicelluloses. This pre-treatment contributes to increase the fiber-specific surface and to promote their self-adhesion [30]. The applied pre-treatments are most often mechanical, thermal, and/or chemical ones [32].…”

Section: Introductionmentioning

confidence: 99%

“…The applied pre-treatments are most often mechanical, thermal, and/or chemical ones [32]. As a first non-expensive solution, a simple grinding enables the improvement of the particle size profile of micrometric fibers [30,33,34]. Defibration is however much more efficient when thermo-mechanical pulps are produced.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Low-Density Insulation Blocks and Hardboards from Amaranth (Amaranthus cruentus) Stems, a New Perspective for Building Applications

et al. 2021

Self Cite

View full text Add to dashboard Cite

Nowadays, amaranth appears as a promising source of squalene of vegetable origin. Amaranth oil is indeed one of the most concentrated vegetable oils in squalene, i.e., up to 6% (w/w). This triterpene is highly appreciated in cosmetology, especially for the formulation of moisturizing creams. It is almost exclusively extracted from the liver of sharks, causing their overfishing. Thus, providing a squalene of renewable origin is a major challenge for the cosmetic industry. The amaranth plant has thus experienced renewed interest in recent years. In addition to the seeds, a stem is also produced during cultivation. Representing up to 80% (w/w) of the plant aerial part, it is composed of a ligneous fraction, the bark, on its periphery, and a pith in its middle. In this study, a fractionation process was developed to separate bark and pith. These two fractions were then used to produce renewable materials for building applications. On the one hand, the bark was used to produce hardboards, with the deoiled seeds acting as natural binder. Such boards are a viable alternative to commercial wood-based panels. On the other hand, the pith was transformed into cohesive and machinable low-density insulation blocks revealing a low thermal conductivity value.

show abstract

Impact of thermomechanical pretreatment by twin-screw extrusion on the properties of bio-based materials from sugarcane bagasse obtained by thermocompression

Cavailles,

Vaca-Medina,

Wu-Tiu-Yen

et al. 2024

Bioresource Technology

View full text Add to dashboard Cite

Production of fiberboards from shives collected after continuous fiber mechanical extraction from oleaginous flax

Abstract: OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible.

Cited by 13 publications

References 28 publications

Production of fiberboard from rice straw thermomechanical extrudates by thermopressing: influence of fiber morphology, water and lignin content

Production of fiberboard from rice straw thermomechanical extrudates by thermopressing: influence of fiber morphology, water and lignin content

Low-Density Insulation Blocks and Hardboards from Amaranth (Amaranthus cruentus) Stems, a New Perspective for Building Applications

Impact of thermomechanical pretreatment by twin-screw extrusion on the properties of bio-based materials from sugarcane bagasse obtained by thermocompression

Contact Info

Product

Resources

About