Assessing the effect of fibre extraction processes on the strength of flax fibre reinforcement

Zeng, Xuesen; Mooney, Sacha J.; Sturrock, Craig J.

doi:10.1016/j.compositesa.2014.12.004

Cited by 29 publications

(14 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zeng et al. 39 introduced a new method of fiber extraction from 35% aqueous ammonia pre-treated flax stems, comparing this with a standard extraction process. They found both tensile and flexural properties of flax fibers were increased due to the ammonia treatment.…”

Section: Factors Affecting the Properties Of Flax Fibersmentioning

confidence: 99%

Flax fiber and its composites: An overview of water and moisture absorption impact on their performance

Moudood

Rahman

Öchsner

et al. 2018

Journal of Reinforced Plastics and Composites

140

View full text Add to dashboard Cite

Contemporary researchers have specified that natural flax fiber is comparable with synthetic fibers due to its unique physical and mechanical characteristics which have been recognized for decades. Flax fiber reinforced composites have the potential for wide usage in sport and maritime industries, and as automotive accessories. In addition, this composite is in the development stages for future applications in the aeronautical industry. However, designing the flax composite parts is a challenging task due to the great variability in fiber properties. This is caused by many factors, including the plant origin and growth conditions, plant age, location in the stem, fibers extraction method, and the fact that there is often a non-uniform cross-section of the fibers. Furthermore, the water and moisture absorption tendency of the flax fibers and their composites and the consequent detrimental effects on their mechanical performance are also major drawbacks. Fibers may soften and swell with absorbed water molecules, which could affect the performance of this bio-composite. Flax fibers' moisture absorption propensity may lead to a deterioration of the fiber-matrix interface, weakening the interfacial strength and ultimately degrading the quality of the composite. This review represents a brief summary of the main findings of research into flax fiber reinforced composites, focusing on the challenges of its water and moisture absorption behavior on their performance.

show abstract

Section: Factors Affecting the Properties Of Flax Fibersmentioning

confidence: 99%

Flax fiber and its composites: An overview of water and moisture absorption impact on their performance

Moudood

Rahman

Öchsner

et al. 2018

Journal of Reinforced Plastics and Composites

140

View full text Add to dashboard Cite

show abstract

“…4). Tests on technical fibre bundles tend to reveal substantially lower mechanical properties (both stiffness and strength) than elementary fibres (Bos et al 2002;Oksman et al 2002;Zeng et al 2015). Indeed, many fibre types, such as jute, sisal and hemp, are difficult to (completely) separate into elementary fibres from the technical fibres.…”

Section: Measurement Conditionsmentioning

confidence: 99%

Why do we observe significant differences between measured and ‘back-calculated’ properties of natural fibres?

2016

View full text Add to dashboard Cite

The drive towards sustainability, even in materials technologies, has fuelled an increasing interest in bio-based composites. Cellulosic fibres, such as flax and jute, are being considered as alternatives to technical synthetic fibres, such as glass, as reinforcements in fibre reinforced polymer composites for a wide range of applications. A critical bottleneck in the advancement of plant fibre composites (PFRPs) is our current inability to predict PFRP properties from data on fibre properties. This is highly desirable in the cost-and time-effective development and design of optimised PFRP materials with reliable behaviour. This study, alongside limited other studies in literature, have found that the experimentally determined (through single fibre tests) fibre properties are significantly different from the predicted ('backcalculated' using the popular rule-of-mixtures) fibre properties for plant fibres. In this note, we explore potential sources of the observed discrepancy and identify the more likely origins relating to both measurement and errors in predictions based on the rule-of-mixtures. The explored content in this discussion facilitates the design of a future investigation to (1) identify the sensitivity of the discrepancy between measured and predicted fibre properties to the various potential origins, (2) form a unified hypothesis on the observed phenomenon, and (3) determine whether the rule-of-mixtures model (in specific cases) can be improved and may be able to predict properties precisely.

show abstract

“…However, a few recent studies have focused on determining the effect of fiber performance from agronomical factors [28], which are controllable by farmers. The ability to predict fiber performance while in the stem [23,29,30], may alleviate the need to invest in fiber processing before a value can be determined. These types of connections are important to advance industrial development of natural fibers.…”

Section: Purpose Of Studymentioning

confidence: 99%

Influence of Stem Diameter on Fiber Diameter and the Mechanical Properties of Technical Flax Fibers from Linseed Flax

Alcock

Ahmed

DuCharme

et al. 2018

Fibers

View full text Add to dashboard Cite

Abstract:The continued search for sustainable and eco-friendly materials has led to the integration of bio-fibers, such as flax fiber, as reinforcement in composite materials; however, a wide variation in their diameters and mechanical properties poses a considerable challenge for their incorporation in load bearing and structural bio-composite materials. In this paper, a rigorous experimental investigation was performed using two varieties of linseed flax from two growing locations to determine if the variations observed in ultimate tensile strength, Young's modulus, failure strain and diameter could be attributed to the diameters of the stems that produced the fibers. Tests were performed in two different facilities and the results were compared and analyzed using Welch's t-tests. Results showed that samples which differed by stem diameter had statistically significant positive correlation with fiber diameter and negative correlation with tensile strength. No correlations for tensile strength, Young's modulus or fiber diameter were found in samples with the same stem diameter range that were grown in different locations or were of different varieties, that is the effect of location and variety is not statistically significant. Failure strain did not show any statistical significance with respect to differences in stem diameter and only showed one statistically significant result between both facilities for one of the two growing location comparisons.

show abstract

Assessing the effect of fibre extraction processes on the strength of flax fibre reinforcement

Cited by 29 publications

References 26 publications

Flax fiber and its composites: An overview of water and moisture absorption impact on their performance

Flax fiber and its composites: An overview of water and moisture absorption impact on their performance

Why do we observe significant differences between measured and ‘back-calculated’ properties of natural fibres?

Influence of Stem Diameter on Fiber Diameter and the Mechanical Properties of Technical Flax Fibers from Linseed Flax

Contact Info

Product

Resources

About