Characterisation of Natural Fibres for Sustainable Discontinuous Fibre Composite Materials

Kandemir, Ali; Pozegic, Thomas; Hamerton, Ian; Eichhorn, Stephen J.; Longana, Marco L.

doi:10.3390/ma13092129

Cited by 59 publications

(28 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous works reported L c for natural fibers such as coir (12.4 mm), PALF (7.3 mm), kenaf (5.37 mm), flax (2.22 mm), jute (0.84 mm) and curaua (0.79 mm) in epoxy matrix. For the interfacial strength the values found for these same natural fibers were: coir (1.42 MPa), PALF (4.93 MPa), kenaf (6.41 MPa), flax (11.83 MPa), jute (11.64 MPa) and curaua (12.93 MPa) [ 49 , 50 , 51 , 52 ]. One can observe in Equation (3) that the L c is inversely proportional to the interfacial strength.…”

Section: Resultsmentioning

confidence: 99%

Tucum Fiber from Amazon Astrocaryum vulgare Palm Tree: Novel Reinforcement for Polymer Composites

et al. 2020

View full text Add to dashboard Cite

The replacement of synthetic fibers by natural fibers has, in recent decades, been the subject of intense research, particularly as reinforcement of composites. In this work, the lesser known tucum fiber, extracted from the leaves of the Amazon Astrocaryum vulgare palm tree, is investigated as a possible novel reinforcement of epoxy composites. The tucum fiber was characterized by pullout test for interfacial adhesion with epoxy matrix. The fiber presented a critical length of 6.30 mm, with interfacial shear strength of 2.73 MPa. Composites prepared with different volume fractions of 20 and 40% tucum fiber were characterized by tensile and Izod impact tests, as well as by ballistic impact energy absorption using .22 ammunition. A cost analysis compared the tucum fiber epoxy composites with other natural and synthetic fiber reinforced epoxy composites. The results showed that 40 vol% tucum fiber epoxy composites increased the tensile strength by 104% and the absorbed Izod impact energy by 157% in comparison to the plain epoxy, while the ballistic performance of the 20 vol% tucum fiber composites increased 150%. These results confirmed for the first time a reinforcement effect of the tucum fiber to polymer composites. Moreover, these composites exhibit superior cost effectiveness, taking into account a comparison made with others epoxy polymer composites.

show abstract

Section: Resultsmentioning

confidence: 99%

Tucum Fiber from Amazon Astrocaryum vulgare Palm Tree: Novel Reinforcement for Polymer Composites

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The interest in materials reinforced with natural fibers is growing because it is possible to obtain materials with good mechanical properties, low density and low cost. In addition, natural fibers are biodegradable, renewable and promote sustainability [ 12 , 13 , 14 , 15 ], which is increasingly important currently. These fibers could replace synthetic fibers in certain applications, since synthetic fibers leave a greater environmental footprint.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Natural Fiber Reinforced Foamed Concrete

et al. 2020

View full text Add to dashboard Cite

The mechanical characterization of plain foamed concrete (PFC) and fiber-reinforced foamed concrete (FRFC) with a density of 700 kg/m3 was performed with compression and tension tests. FRFC was reinforced with the natural fiber henequen (untreated or alkaline-treated) at volume fractions of 0.5%, 1% and 1.5%. Polypropylene fiber reinforcement was also used as a reference. For all FRFCs, the inclusion of the fibers enhanced the compressive and tensile strengths and plastic behavior, which was attributed to the increase of specimen integrity. Under compressive loading, after the peak strength, there was no considerable loss in strength and a plateau-like regime was observed. Under tensile loading, the fibers significantly increased the tensile strength of the FRFCs and prevented a sudden failure of the specimens, which was in contrast to the brittle behavior of the PFC. The tensile behavior enhancement was higher when treated henequen fibers were used, which was attributed to the increase in the fiber–matrix bond produced by the alkaline treatment. The microscopic characterization showed that the inclusion of fibers did not modify the air-void size and its distribution. Higher energy absorption was observed for FRFCs when compared to the PFC, which was attributed to the enhanced toughness and ductility by the fibers. The results presented herein warrant further research of FRFC with natural henequen fibers for engineering applications.

show abstract

“…As a rule of thumb, unless a natural fibre has undergone additional processing, it has a rougher surface compared to a synthetic fibre. In principle, this can aid mechanical interlocking with the matrix, but the presence of hydrophilic hydroxyl groups may form hydrogen bonds with adventitious moisture, competing with those formed with a polar matrix resulting in poor mechanical performance as a composite [82]. Additionally, the reactive functional groups of the natural fibre may be covered by pectin and waxy substances that behave as a barrier, preventing effective fibre-matrix bonding [123].…”

Section: Interfacementioning

confidence: 99%

A Life Cycle Engineering Perspective on Biocomposites as a Solution for a Sustainable Recovery

et al. 2021

Self Cite

View full text Add to dashboard Cite

Composite materials, such as carbon fibre reinforced epoxies, provide more efficient structures than conventional materials through light-weighting, but the associated high energy demand during production can be extremely detrimental to the environment. Biocomposites are an emerging material class with the potential to reduce a product’s through-life environmental impact relative to wholly synthetic composites. As with most materials, there are challenges and opportunities with the adoption of biocomposites at the each stage of the life cycle. Life Cycle Engineering is a readily available tool enabling the qualification of a product’s performance, and environmental and financial impact, which can be incorporated in the conceptual development phase. Designers and engineers are beginning to actively include the environment in their workflow, allowing them to play a significant role in future sustainability strategies. This review will introduce Life Cycle Engineering and outline how the concept can offer support in the Design for the Environment, followed by a discussion of the advantages and disadvantages of biocomposites throughout their life cycle.

show abstract

Characterisation of Natural Fibres for Sustainable Discontinuous Fibre Composite Materials

Cited by 59 publications

References 50 publications

Tucum Fiber from Amazon Astrocaryum vulgare Palm Tree: Novel Reinforcement for Polymer Composites

Tucum Fiber from Amazon Astrocaryum vulgare Palm Tree: Novel Reinforcement for Polymer Composites

Mechanical Properties of Natural Fiber Reinforced Foamed Concrete

A Life Cycle Engineering Perspective on Biocomposites as a Solution for a Sustainable Recovery

Contact Info

Product

Resources

About