Influence of alkali treatment and fibre length on mechanical properties of short Agave fibre reinforced epoxy composites

Mylsamy, K.; Rajendran, I.

doi:10.1016/j.matdes.2011.04.029

Cited by 123 publications

(91 citation statements)

References 19 publications

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“…This can be explained by the orientation of the bamboo fibres within the composites. Mylsamy and Rajendran [21] indicated that the tensile properties in a composite depend mainly on the fibre orientation and the adhesion between the fibres and the matrix. The fibres should be also long along the direction of the load to effectively utilize its high tensile strength [3].…”

Section: Flexural Behaviourmentioning

confidence: 99%

“…Under compressive load, the specimens 0%, 4%, 6%, and 8% NaOH failed at an average stress of 61.2, 84.6, 111.2, and 64.1 MPa, respectively, with the failure strain occurring between 2.5 to 5.2%. Mylsamy and Rajendran [21] suggested that the most important parameter controlling the compression properties of fibre composites is the interfacial adhesion between the fibre and matrix. Thus, higher compressive properties are expected for composites with treated bamboo fibres than the untreated samples as the resin can easily wet and impregnate the fibres.…”

Section: Flexural Behaviourmentioning

confidence: 99%

See 1 more Smart Citation

Effects of alkali treatment and elevated temperature on the mechanical properties of bamboo fibre–polyester composites

Manalo

Wani

Zukarnain

et al. 2015

Composites Part B: Engineering

230

112

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Bamboo fibre reinforced composites are not fully utilised due to the limited understanding on their mechanical characteristics. In this paper, the effects of alkali treatment and elevated temperature on the mechanical properties of bamboo fibre reinforced polyester composites were investigated. Laminates were fabricated using untreated and sodium hydroxide (NaOH) treated (4 to 8% by weight) randomly oriented bamboo fibres and tested at room and elevated temperature (40, 80 and 120 o C). An improvement in the mechanical properties of the composites was achieved with treatment of the bamboo fibres. An NaOH concentration of 6% was found optimum and resulted in the best mechanical properties. The bending, tensile and compressive strength of this composite is 44.2, 21.0, 111.2 MPa, respectively while the stiffness is 4.0 GPa which are 7, 10, 81, and 25%, respectively higher than the untreated IntroductionSynthetic fibres such as glass, carbon and aramid have been used for several years in many applications varying from aerospace components to civil infrastructures. However, the high production and material costs of these fibres limit their wider use for the development of composite materials. As a result, there is an increasing interest in utilizing the less expensive natural fibres as reinforcement in composites because of their added advantages such as lightweight, renewability and biodegradability. Joshi et al.[1] also revealed that natural fibres are environmentally superior to glass fibres making them an emerging and realistic alternative to synthetic fibres in some engineering applications. It is anticipated therefore that the use of sustainable natural fibres in the development of new generation composites will be a necessity and will play a crucial role in the near future.Among the well-known natural fibres, bamboo has one of the most favourable combinations of low-density and high stiffness and strength [2]. Nugroho and Ando [3] indicated that these properties of bamboo make them a promising material for the manufacture of various engineered composite products. However, it is only in recent years that the interest in utilising bamboo as reinforcing materials for composites is increasing because of limited availability of the fibres [2]. This is because it is technically difficult and expensive to extract long and straight bamboo fibres [4][5]. Another significant challenge in using bamboo is the inherent flaws within fibres which reduce their compatibility with polymer matrices resulting in poor mechanical properties of the composites [6]. This is due to the hydrophilic nature of natural fibres and the hydrophobic nature of the polymer matrix but their poor compatibility can be improved by fibre surface modifications using chemical treatments.While many researchers have developed composites with natural fibres, the work on bamboo fibre reinforced composites is still very limited. Most of the studies focused mostly on tensile strength characterisation, thus Khalil el at. [5] suggested that more anal...

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Section: Flexural Behaviourmentioning

confidence: 99%

Section: Flexural Behaviourmentioning

confidence: 99%

Effects of alkali treatment and elevated temperature on the mechanical properties of bamboo fibre–polyester composites

Manalo

Wani

Zukarnain

et al. 2015

Composites Part B: Engineering

230

112

View full text Add to dashboard Cite

show abstract

“…Figure 6. Tensile stress-strain behavior of bamboo composites Mylsamy & Rajendran (2011) indicated that the tensile properties in a composite depend mainly on the fiber orientation and adhesion between the fiber and the matrix. Also, the fibers should be long along the direction of the load to effectively utilize its high tensile strength (Nugroho & Ando 2001).…”

Section: Test Set-up and Proceduresmentioning

confidence: 99%

“…This is expected as Sigley et al (1991) indicated that thermosetting polymers like polyester are usually brittle in flexure, tension and shear but show considerable ductility in compression. In addition, Mylsamy & Rajendran (2011) suggested that the most important parameter controlling the compression properties of fiber composites is the interfacial adhesion between the fiber and matrix. Thus, higher compressive properties are expected for composites with low fiber content ratio as the resin can easily wet and impregnate the fibers.…”

Section: Tensile Behaviormentioning

confidence: 99%

Mechanical properties of bamboo fiber-polyester composites

Manalo¹,

Karunasena²,

Lau³

2012

From Materials to Structures: Advancement Through Innovation

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“…The investigation results showed that higher alkali concentration would deteriorate the fiber which lead to the decrease of it composite tensile strength. The effects of alkali treatment and fiber length on mechanical properties of short Agave fiber reinforced epoxy composite the have been examined by Mylsamy et al [9]. The results indicated that the composite with alkali treated fiber exhibited a higher tensile, compression, flexural and impact strength than the one with untreated fibers.…”

Section: Introductionmentioning

confidence: 99%

Impact of Alkali Treatment Conditions on Kenaf Fiber Polyester Composite Tensile Strength

Hashim

Roslan

Mahzan

et al. 2014

AMM

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Abstract. The increase of environmental issues awareness has accelerated the utilization of renewable resources like plant fiber to be used as reinforced material in polymer composite. However, there are significant problems of compatibility between the fiber and the matrix due to weakness in the interfacial adhesion of the natural fiber with the synthetic matrices. One of the solutions to overcome this problem is using chemical modification like alkali treatment. In this study, the impact of alkali treatment conditions on short randomly oriented kenaf fiber reinforced polyester matrix composite tensile strength was investigated. The experimental design setting was based on 2 level factorial experiments. Two parameters were selected during alkali treatment process which are kenaf fiber immersion duration (at 30 minute and 480 minute) and alkali solution temperature (at 40 o C and 80 o C). Alkali concentration was fixed at 2% (w/v) and the kenaf polyester volume fraction ratio was 10:90. The composite specimens were tested to determine the tensile properties according to ASTM D638-10 Type I. JOEL scanning electron microscopy (SEM) was used to study the microstructure of the material. The result showed that alkali treatment conditions setting do have the impact on tensile strength of short randomly oriented kenaf polyester composite. The interaction factors between immersion time and temperature was found to have prominent factors to the tensile strength of composite followed by the immersion time factor.

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Influence of alkali treatment and fibre length on mechanical properties of short Agave fibre reinforced epoxy composites

Cited by 123 publications

References 19 publications

Effects of alkali treatment and elevated temperature on the mechanical properties of bamboo fibre–polyester composites

Effects of alkali treatment and elevated temperature on the mechanical properties of bamboo fibre–polyester composites

Mechanical properties of bamboo fiber-polyester composites

Impact of Alkali Treatment Conditions on Kenaf Fiber Polyester Composite Tensile Strength

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