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

Hashim, Mohd Yussni; Roslan, Mohd Nazrul; Mahzan, Shahruddin; Zin, Mohd Hanafee; Ariffin, Saparudin

doi:10.4028/www.scientific.net/amm.660.285

Cited by 7 publications

(5 citation statements)

References 15 publications

(14 reference statements)

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“…Hashim et al subjected kenaf fibres to 2% NaOH at 2 and 100°C for 30 and 480 min. From their results, it was concluded that the immersion time had a major impact on the tensile mean strength value of the fibre, whereas the temperature had a small impact [45]. Abdal-hay et al found that ultimate tensile strength and % elongation of the single fibre increased significantly due to the alkali treatment (6% for 3 h) [46].…”

Section: Characterisation Of the Alkali-treated Natural Fibresmentioning

confidence: 99%

A review on the characterisation of natural fibres and their composites after alkali treatment and water absorption

Muthukumar

Ishak

Sapuan

et al. 2017

Plastics, Rubber and Composites

246

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Natural fibre-reinforced polymer matrix composites are gaining increased attention among the researchers due to their low density, biodegradability, abundance, good mechanical properties, etc. Significant amount of research works can be found on the material characterisation of natural fibres like hemp, flax, sisal, kenaf, coir and jute and their composites based on the polymer matrices. Natural fibres are hydrophilic in nature and exhibit poor interfacial adhesion between fibre and matrix. Modification of the fibre surface by chemical methods, such as alkalisation, benzoylation and acetylation, has been used by researchers to improve the above-mentioned shortcomings. This review paper focuses on the effect of alkali treatment on the material properties of various natural fibres and their composites along with their water absorption behaviour.

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Section: Characterisation Of the Alkali-treated Natural Fibresmentioning

confidence: 99%

A review on the characterisation of natural fibres and their composites after alkali treatment and water absorption

Muthukumar

Ishak

Sapuan

et al. 2017

Plastics, Rubber and Composites

246

View full text Add to dashboard Cite

show abstract

“…The Lloyd Instruments Universal Testing Machine LR30K model was used to determine bamboo fibre tensile properties in compliance with ASTM (C1557-03). Natural fibres, such as kenaf, were tested using this standard approach by Hashim et al [37]. A single bamboo fibre was cut and glued at each end of the fibre to the paper frame to avoid it sliding out of the grip area during testing.…”

Section: Fibre Tensile Propertiesmentioning

confidence: 99%

The Effect of Alkaline Treatment On the Schizostachyum Grande Fibre for Textile Applications

Anuwar¹,

Rashid²,

Jikan³

et al. 2022

IJIE

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Among commercial Malaysian bamboo species, Schizostachyum Grandespecies are characterised by their longest internode and thinner culm wall, which allow more attainable fibres during the extraction process. However, the chemical composition of bamboo fibres is higher than any other natural fibre, resulting in coarse and stiff fibres that require alkaline treatment to develop fine fibres. This paper presents the effect of alkaline treatment concentration and soaking time on the physical properties and tensile properties of bamboo fibres. The bamboo fibre was treated with an alkaline solution at 4 and 8 wt.% concentration for 6, 12, 18, and 24 hours. The diameter and fineness of bamboo fibre wereevaluated to determine if alkaline concentration and soaking time affected the fibres. Results showed that the treated fibre diameter decreased by 23.2% to 66.51μm at 8 wt.% alkaline concentrationsfor 12 hours of soaking timecompared to the untreated bamboo fibre of 86.56μm.The fibre fineness of 11.96 tex was produced at 24 hours of soaking time and8 wt.% alkaline concentrations. Alkaline treatment was effective in causing a decrease in fibre diameter and produced the finest fibre. Thinner and finer fibre was produced as alkaline concentration and soaking time increased.The highest tensile strength of treated bamboo fibre was 1.42 GPa at a 4 wt% alkaline concentration and6 hours of soaking time. Elongation at break and tenacity improved remarkably when the alkaline concentration and soaking time were increased, which were 3.11% and 45 cN/Tex, respectively, at 8 wt% alkaline concentrationsfor 12 hours of soaking time. Moreover, the 8 wt% alkaline concentration was the best for bamboo fibre because the treatment was effective in causing a decrease in fibre diameter and produced the finest fibre. The elongation at break and tenacity of fibres were also improved at 12 hours of soaking time. The tensile strength and modulus of fibre were reduced at longer soaking times at high alkaline concentrations of more than 18 hours.

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“…Therefore, chemical treatment of natural fiber is an alternative solution often applied to overcome this problem [98]. One of the common and widely used techniques to clean and modify a natural fiber surface is an alkali treatment process [99,100]. Hot-alkali treatment was used to pretreat jute fabrics to improve their interfacial compatibility leading to better cohesion and interfrictional forces between fibers leading to high modulus and high flexural strength [101].…”

Section: Alkali Treatmentmentioning

confidence: 99%

A Review on Natural Fibers’ for Biopolymer Composites

Karahan

2022

TTEFT

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There has been much effort to provide eco-friendly and biodegradable materials for the next generation of composite products owing to global environmental concerns and increased awareness of renewable green resources. Increased use of natural materials in composites has led to a reduction in greenhouse gas emissions and the carbon footprint of composites. In addition to the benefits obtained from green materials, there are some challenges in working with them, such as poor compatibility between the reinforcing natural fiber and matrix and the relatively high moisture absorption of natural fibers. Green composites can be a suitable alternative for petroleum-based materials. However, before this can be accomplished, a number of issues need to be addressed, including poor interfacial adhesion between the matrix and natural fibers, moisture absorption, poor fire resistance, low impact strength, and less durability. Several researchers have studied the properties of natural fiber composites. These investigations have resulted in developing several procedures for modifying natural fibers and resins.To address the increasing demand to use eco-friendly materials in different applications, an up-to-date review of natural fiber and resin types and sources, modification, and processing techniques, physical and mechanical behaviors, applications, life-cycle assessment, and other properties of green composites are required to provide a better understanding of the behavior of green composites.

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

Cited by 7 publications

References 15 publications

A review on the characterisation of natural fibres and their composites after alkali treatment and water absorption

A review on the characterisation of natural fibres and their composites after alkali treatment and water absorption

The Effect of Alkaline Treatment On the Schizostachyum Grande Fibre for Textile Applications

A Review on Natural Fibers’ for Biopolymer Composites

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