Eighty years of composites reinforced by flax fibres: A historical review

Baley, Christophe; Bourmaud, Alain; Davies, Peter

doi:10.1016/j.compositesa.2021.106333

Cited by 66 publications

(43 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The development of structural plant fiber composite components started about 80 years ago [1] and there is considerable interest in them nowadays because of the growing environmental and ecological pressures facing industries. Characteristics and properties of biocomposites have evolved, but improvements are still needed for the effective and durable use of plant fiber reinforcement of composites.…”

Section: Introductionmentioning

confidence: 99%

“…Characteristics and properties of biocomposites have evolved, but improvements are still needed for the effective and durable use of plant fiber reinforcement of composites. While flax has been extensively studied in this aim [1], hemp fibers also show interesting specific properties for the reinforcement of composites [2]. The rougher surface of hemp fibers compared with flax fibers could positively influence the fiber/matrix adhesion [3].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of Alkali and Silane Treatment on Hemp/PLA Composites’ Performance: From Micro to Macro Scale

et al. 2021

View full text Add to dashboard Cite

This study investigated the effect of hemp fiber pretreatments (water and sodium hydroxide) combined with silane treatment, first on the fiber properties (microscale) and then on polylactide (PLA) composite properties (macroscale). At the microscale, Fourier transform infrared, thermogravimetric analysis, and scanning electron microscopy investigations highlighted structural alterations in the fibers, with the removal of targeted components and rearrangement in the cell wall. These structural changes influenced unitary fiber properties. At the macroscale, both pretreatments increased the composites’ tensile properties, despite their negative impact on fiber performance. Additionally, silane treatment improved composite performance thanks to higher performance of the fibers themselves and improved fiber compatibility with the PLA matrix brought on by the silane couplings. PLA composites reinforced by 30 wt.% alkali and silane treated hemp fibers exhibited the highest tensile strength (62 MPa), flexural strength (113 MPa), and Young’s modulus (7.6 GPa). Overall, the paper demonstrates the applicability of locally grown, frost-retted hemp fibers for the development of bio-based composites with low density (1.13 to 1.23 g cm−3).

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of Alkali and Silane Treatment on Hemp/PLA Composites’ Performance: From Micro to Macro Scale

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Due to rising consumer awareness and resource scarcity, fiber reinforcement based on natural fibers such as flax, hemp, ramie, or basalt can be used in this multilayer laminar composite structure to overcome negative impacts on environmental and resource availability issues. While the concept of natural fiber reinforcement such as flax is not new, research efforts of the last decades have been dominated by synthetic based fiber reinforcement [11].…”

Section: Introductionmentioning

confidence: 99%

Influence of Adhesive Systems on the Mechanical and Physical Properties of Flax Fiber Reinforced Beech Plywood

et al. 2021

View full text Add to dashboard Cite

In order to improve the acceptance of broader industrial application of flax fiber reinforced beech (Fagus sylvatica L.) plywood, five different industrial applicated adhesive systems were tested. Epoxy resin, urea-formaldehyde, melamine-urea formaldehyde, isocyanate MDI prepolymer, and polyurethane displayed a divergent picture in improving the mechanical properties—modulus of elasticity, modulus of rupture, tensile strength, shear strength and screw withdrawal resistance—of flax fiber-reinforced plywood. Epoxy resin is well suited for flax fiber reinforcement, whereas urea-formaldehyde, melamine urea-formaldehyde, and isocyanate prepolymer improved modulus of elasticity, modulus of rupture, shear strength, and screw withdrawal resistance, but lowered tensile strength. Polyurethane lowered the mechanical properties of flax fiber reinforced plywood. Flax fiber reinforced epoxy resin bonded plywood exceeded glass fiber reinforced plywood in terms of shear strength, modulus of elasticity, and modulus of rupture.

show abstract

“…Investigations on the extraction of fibers from flax and hemp has been regaining ground over recent years, generally with a view to using them as fiber reinforcements in composites or in clothing (Baley et al 2021;Manaia et al 2019). The motivation for their use in composites is the equivalent performance but better sustainability profile compared to synthetics such as glass fibers (Bambach 2020).…”

Section: Discussionmentioning

confidence: 99%

“…The motivation for their use in clothing is the lower environmental impact of flax and hemp cultivation as compared to cotton (e.g. water consumption and pesticide use) (Baley et al 2021;Möller and Popescu 2012).…”

Section: Discussionmentioning

confidence: 99%

Extraction of cellulose fibers from flax and hemp: a review

2021

View full text Add to dashboard Cite

The paper is a review on the extraction processes of cellulosic fibers from flax and hemp. The two lignocellulosic crops have a long history of use by humans for extraction of the bast fibers among other purposes. The utility of bast fibers declined over time with industrial advances and changes to the economy, but of late, with an increase of focus on environmental impact and sustainability, there is a renewed interest in these resources. The use of biomass-based resource requires an appreciation of plant anatomy and the agronomical variables in their cultivation and harvesting. This review provides an overview of these aspects as well as of the processes of retting for initial weakening of the plant structure in preparation for fiber extraction, degumming to isolate fiber bundles, and delignification.

show abstract

Eighty years of composites reinforced by flax fibres: A historical review

Cited by 66 publications

References 73 publications

Impact of Alkali and Silane Treatment on Hemp/PLA Composites’ Performance: From Micro to Macro Scale

Impact of Alkali and Silane Treatment on Hemp/PLA Composites’ Performance: From Micro to Macro Scale

Influence of Adhesive Systems on the Mechanical and Physical Properties of Flax Fiber Reinforced Beech Plywood

Extraction of cellulose fibers from flax and hemp: a review

Contact Info

Product

Resources

About