Innovant agromaterials formulated with flax shaves and proteinic binder: Process and characterization

Hajj, Nemr El; Dheilly, Rose-Marie; Goullieux, Adeline; Aboura, Zoheir; Benzeggagh, M.L.; Quéneudec, M.

doi:10.1016/j.compositesb.2011.05.022

Cited by 22 publications

(8 citation statements)

References 19 publications

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“…The good adherence of the components, re ected by the formation of a layer of protein binder on the surface of the bers and the presence of borax and boric acid microcrystals adhered to this layer, can be explained based on the ndings of Gu et al (2020) about the crosslinking of the soy protein in the presence of borate. Similar behavior in terms of the formation of a protein layer on the surface of the bers has also been reported for other systems such as soy protein/ ax bers (El Hajj et al, 2012) and pea protein/ ax bers (Lazko et al, 2013).…”

Section: Morphologysupporting

confidence: 82%

“…Besides, Gu et al (2020) have shown that soy protein can crosslink in the presence of borate, leading to good adhesive properties. (Khosravi et al 2010) The boards described in Table 1 have been produced through three manufacturing methods: hot-press molding (Mahmood et al 2016;Khosravi et al 2010), bond molding (Cai et al 2016;Lazko et al 2013;Palumbo et al 2015) and blending microwave radiation (El Hajj et al 2012). Boards manufactured by hot pressing have a higher density and exural strength than boards manufactured by bond molding but lower thermal insulation properties due to the resulting decrease in porosity (Liu et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Fire-resistant cellulose boards from waste newspaper, boric acid salts, and protein binders

Moreno

Villamizar²,

Perez³

et al. 2021

Clean Techn Environ Policy

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Housing construction consumes more materials than any other economic activity, with a total of 40.6 Gt/year. Boards are placed between construction materials to serve as non-load-bearing partitions. Studies have been performed to nd alternatives to conventional materials using recycled bers, agro-industrial waste, and protein binders as raw materials. Here, re-resistant cellulose boards with low density and adequate exural strength were produced for use as non-load-bearing partitions using waste newspapers, soy protein, boric acid, and borax. A central composite design (CCD) was employed to study the in uence of the board component percentage on ame retardancy (UL 94 horizontal burning test), density (ASTM D1037-12) and exural strength (ISO 178-2010). The cellulose boards were characterized by thermal analysis (ASTM E1131-14) and scanning electron microscopy. Fireresistant cellulose boards were successfully made with low densities (120-170 kg/m 3 ) and exural strength (0.06-0.64 MPa). The mechanical performance and re resistance of cellulose boards suggest their suitability for use as building materials. A useful and sustainable construction material with great potential is produced with the valorization of waste materials.

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Section: Morphologysupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Fire-resistant cellulose boards from waste newspaper, boric acid salts, and protein binders

Moreno

Villamizar²,

Perez³

et al. 2021

Clean Techn Environ Policy

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“…This is necessary because both the SEM and X-Ray μCT techniques could not quantitatively show the magnitude and degree of surface roughness and for better comparison and presentation of various surface roughness responses. This innovative technique has been effectively used in biomedical/bio-engineering research by McGill and Mackay [39], Oha and Watanabe [40], physical science by Crocker and Grier [41] and composite technology by Hajj et al [42]. Therefore, based on the advantages of this technique, it was adopted to investigate the surface roughness.…”

Section: Cvm Micrographic Analysismentioning

confidence: 99%

Abrasive water jet drilling of advanced sustainable bio-fibre-reinforced polymer/hybrid composites: a comprehensive analysis of machining-induced damage responses

Dhakal

Ismail

Ojo

et al. 2018

Int J Adv Manuf Technol

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This paper aims at investigating the effects of variable traverse speeds on machining-induced damage of fibre-reinforced composites, using the abrasive water jet (AWJ) drilling. Three different types of epoxy-based composites laminates fabricated by vacuum bagging technique containing unidirectional (UD) flax, hybrid carbon-flax and carbon fibre-reinforced composite were used. The drilling parameters used were traverse speeds of 20, 40, 60 and 80 mm/min, constant water jet pressure of 300 MPa and a hole diameter of 10 mm. The results obtained depict that the traverse speed had a significant effect with respect to both surface roughness and delamination drilling-induced damage responses. Evidently, an increase in water jet traverse speed caused an increase in both damage responses of the three samples. Significantly, the CFRP composite sample recorded the lowest surface roughness damage response, followed by C-FFRP, while FFRP exhibited the highest. However, samples of FFRP and hybrid C-FFRP recorded lowest and highest delamination damage responses, respectively. The discrepancy in both damage responses, as further validated with micrographs of colour video microscopy (CVM), scanning electron microscopy (SEM) and X-ray micro-computed tomography (X-ray μCT), is attributed to the different mechanical properties of the reinforced fibres, fibre orientation/ply stacking and hybridisation of the samples.

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“…The results shown that samples with coarser flax-shaves and with a lower quantity of binder were better performing in terms of sound absorption and thermal insulation (Fig. 11) , but also softer [29].…”

Section: Flaxmentioning

confidence: 99%

“…Sound absorption coefficient of two samples of different size of flax-tow fibres (thickness 5cm) [18] Figure 11.Sound absorption coefficient of flax-tow samples evaluated in[29] Figure 12. Absorption coefficient of LECA sample of different thickness[30] …”

mentioning

confidence: 99%

A Review of Sustainable Materials for Acoustic Applications

2012

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Acoustical sustainable materials, either natural or made from recycled materials, are quite often a valid alternative to traditional synthetic materials. The production of these materials generally has a lower environmental impact than conventional ones, though a proper analysis of their sustainability, through Life Cycle Assessment procedures, has to be carried out. Airborne sound insulation of natural materials such as flax or of recycled cellulose fibres is similar to the one of rock or glass wool. Many natural materials (bamboo, kenaf, coco fibres) show good sound absorbing performances; cork or recycled rubber layers can be very effective for impact sound insulation. These materials also show good thermal insulation properties, are often light and they are not harmful for human health. Furthermore, many of these materials are currently available on the market at competitive prices. There is however a need to complete their characterization, both from an experimental and a theoretical point of view, and especially to propose a standard and unique procedure to evaluate their sustainability. The paper presents an updated survey on the acoustical properties of sustainable materials, both natural and from recycled materials, including mixed and composite materials and systems such as green roofs and green walls, and is completed by a wide selection of recent related bibliography.

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Innovant agromaterials formulated with flax shaves and proteinic binder: Process and characterization

Cited by 22 publications

References 19 publications

Fire-resistant cellulose boards from waste newspaper, boric acid salts, and protein binders

Fire-resistant cellulose boards from waste newspaper, boric acid salts, and protein binders

Abrasive water jet drilling of advanced sustainable bio-fibre-reinforced polymer/hybrid composites: a comprehensive analysis of machining-induced damage responses

A Review of Sustainable Materials for Acoustic Applications

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