Coconut/coir fibers, their composites and applications

Oladele, Isiaka Oluwole; Adelani, Samson Oluwagbengea; Makinde-Isola, Baraka Abiodun; Omotosho, Taiwo Fisayo

doi:10.1016/b978-0-12-824528-6.00004-7

Cited by 6 publications

(9 citation statements)

References 41 publications

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“…However, Oladele et al, [103] reported that optimum mechanical properties were observed in fibre treated with 20% NaOH, and it was concluded that alkaline treatment greatly improves the hydrophobicity of coir fibres. It can also be treated with Maleic anhydride silane, acetylation (esterification), benzoylation, and other methods [58,103,104]. Furthermore, fibre treated with alkaline Xylanase at 4% NaOH followed by 20 weight grams (V/g) of xylanase increased cellulosic content [58].…”

Section: The Hydrophilic Behaviour and Surface Modifications Of Fibre...mentioning

confidence: 99%

“…The moisture absorption by composites containing natural fibres has an adverse impact on their properties, thus affecting their long-term performance. Most of the agricultural waste, for example, rice husk [90,91]; sugarcane bagasse [58,92]; coconut husk [93]; EFB [57] have increased the rate of water absorption when the increment of waste content since all agricultural fibres are hydrophilic in nature which leads to the barrier in adhesivity between fibre and matrix. The rice husk, sugarcane bagasse, and coconut husk are lignocellulosic materials with hygroscopic OH, which attracts water via hydrogen bond formation.…”

Section: The Hydrophilic Behaviour and Surface Modifications Of Fibre...mentioning

confidence: 99%

“…Marwardi et al, [101] treated coconut coir fibre in a 5% NaOH solution at a temperature and time of 80°C and 600 seconds, respectively, revealing changes in the morphology of the fibre with a reduction in fibre diameter up to 40%, which causes improvement in the matrix-fibre relationship, increased flexural strengths due to improving the aspect ratio of the fibre in addition to a good interface between the composite constituents [102]. However, Oladele et al, [103] reported that optimum mechanical properties were observed in fibre treated with 20% NaOH, and it was concluded that alkaline treatment greatly improves the hydrophobicity of coir fibres. It can also be treated with Maleic anhydride silane, acetylation (esterification), benzoylation, and other methods [58,103,104].…”

Section: The Hydrophilic Behaviour and Surface Modifications Of Fibre...mentioning

confidence: 99%

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Production of Roof Board Insulation Using Agricultural Wastes Towards Sustainable Building Material

Deraman

Nawi²,

Mydin³

et al. 2022

ARFMTS

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Malaysia, like most other developing countries, is facing an increase in the generation of waste and accompanying problems with the disposal of this waste. A large number of biomass wastes were generated due to increased activity in the agricultural and agro-industrial sectors, which led to producing environmental hazards and waste management issues. On the other situation, the energy consumption to cool the indoor building environment is high due to the building being exposed directly to solar radiation throughout the daytime, which increases the temperature outside and inside the building. Most of the low-medium cost housing schemes were constructed using metal roof covering without providing a roof insulation layer which causes a rising in indoor temperature and creates uncomfortable surroundings. Moreover, existing materials for roof insulation in the market use inorganic synthetic materials that could harm human health. The study aims to investigate the potential use of agricultural wastes for the production of roof board insulation material that can provide economic value added to agricultural waste, reduce the environmental issue and provide eco-friendly, sustainable building material. In this study, these agricultural wastes are combined in different proportions of 50% individual fibres, such as sugarcane bagasse with coconut husk, empty fruit bunch with mesocarp fibre, coconut husk with empty fruit bunch, and sugarcane bagasse with mesocarp fibre. The sample was fabricated using the hot-press machine and went through various physical and mechanical testing, which involved thickness of swelling, modulus of rupture, and thermal conductivity. The finding showed that the mixed fibre of empty fruit bunch and mesocarp fibre achieved all the criteria such as density (427 <500kg/m3); thickness of swelling (19< 20%); modulus of rupture (514<800psi), thermal conductivity (0.0856<0.25 W/m.K) met with the standard requirement in every laboratory test conducted. The outcome of this study suggests that empty fruit bunch and mesocarp fibre are the potential materials for the production of roof board thermal insulation. However, modification of physical and mechanical properties of waste fibre is required to achieve superior performance and is ready to be provided in the market. This study is aligned with the government initiative for the growth of green building materials for sustainable development in the construction industry.

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Section: The Hydrophilic Behaviour and Surface Modifications Of Fibre...mentioning

confidence: 99%

Section: The Hydrophilic Behaviour and Surface Modifications Of Fibre...mentioning

confidence: 99%

Section: The Hydrophilic Behaviour and Surface Modifications Of Fibre...mentioning

confidence: 99%

See 1 more Smart Citation

Production of Roof Board Insulation Using Agricultural Wastes Towards Sustainable Building Material

Deraman

Nawi²,

Mydin³

et al. 2022

ARFMTS

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“…One fabrication pathway is to employ chemical linkers with suitable functionalities specifically catered for reactions with lignin within the coco coir to initiate the crosslinking between the coco coir and the polymer matrix under mild conditions. 38 Recent studies have demonstrated that lignin can be modified using water-based diazonium chemistry (or azo coupling) for achieving effective binding of the polymer matrix towards the lignin in most plant fibers. 17,39 This strategy resulted in fiber-reinforced polymeric composite materials having improved structural integrity and better thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Eco-friendly fabrication of coco coir composites for hydroponic cultivation: a green chemistry approach

2023

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“…Aside from cement replacement and natural coarse aggregate replacement, several studies on the mechanical behaviour and durability characteristics of fiber-reinforced concrete have been conducted over the last two decades. A variety of synthetic fiber and plant fibers such as polyolefin, glass, carbon, polypropylene, banana fiber, sisal fiber, caryota fiber, roselle fiber, jute fiber, and coconut fiber are used as reinforcement in concrete nowadays to improve the mechanical strength and ductility characteristics of both normal and light weight aggregate concrete [6], [7], [8], [9], [10], [11]. Even though synthetic fibers have better thermal resistance, mechanical strength and durability, when compared to natural fibers, plant fibers are much preferred nowadays, due to their low cost and highly renewable nature [12], [13], [14], [15].…”

Section: Introductionmentioning

confidence: 99%

Influence of biomass ash and coconut shell in scrap steel fiber reinforced concrete

Vijayalakshmi¹,

Balamurugan²,

Selvam³

et al. 2023

Građ materijali i konstrukcije

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To develop a sustainable concrete solution, the aggregates and cement in the concrete mixture were partially replaced with Cocos nucifera endocarp (coconut shell) aggregate and biomass ash (sugarcane bagasse ash) respectively. The fresh and hardened properties were studied for three types of mixes (i) the concrete mix with 10-30% replacement of cement with bagasse ash (BA), (ii) Bagasse ash concrete mix with scrap steel fiber and (ii) Bagasse ash concrete with scrap fiber and 10 - 50% coconut shell aggregate. The fresh property of concrete is positively influenced by the addition of bagasse ash. With the addition of scrap fibers and coconut shell the workability reduces by 47% when compared to the control mix. The slump values recorded for all the mixes were within the permissible limit. The density of concrete decreases with the inclusion of bagasse ash and coconut shell which helps reduce the dead weight of structural elements. The mechanical property of concrete increased by 5%, 6% and 8% in compression, split and flexure modes respectively, for 10% bagasse ash steel fiber reinforced concrete. Replacement of gravel with coconut shell affects the strength properties, but all the values were within the permissible limit for structural concrete application. The SEM image analysis showed that the porosity increased with coconut shell content. From the fresh and hardened concrete test results, it was observed that the coconut shell, bagasse ash and scrap fiber can be effectively used as substitutes for concrete ingredients to develop a sustainable fiber reinforced concrete solution.

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Coconut/coir fibers, their composites and applications

Cited by 6 publications

References 41 publications

Production of Roof Board Insulation Using Agricultural Wastes Towards Sustainable Building Material

Production of Roof Board Insulation Using Agricultural Wastes Towards Sustainable Building Material

Eco-friendly fabrication of coco coir composites for hydroponic cultivation: a green chemistry approach

Influence of biomass ash and coconut shell in scrap steel fiber reinforced concrete

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