A review of natural fiber composites: Extraction methods, chemical treatments and applications

Sathish, S.; Karthi, N.; Prabhu, L.; Gokulkumar, S.; Balaji, Dhanapal; Vigneshkumar, N.; Farhan, Tamer; AkilKumar, A.; Dinesh, Veena

doi:10.1016/j.matpr.2020.12.1105

Cited by 78 publications

(50 citation statements)

References 38 publications

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“…Bi-functional groups are introduced chemically into the fibres leading to activation of hydroxyl groups. The activated hydroxyl groups further react with the synthetic matrix thereby enhancing the interfacial adhesion and compatibility between the fibres and matrix [76,82]. Reviews and chemical methods have been reported in the past to increase the functional behaviour of hydroxyl groups present in the polysaccharides.…”

Section: Chemical Modification Of Fibresmentioning

confidence: 99%

Opportunity of Non-Wood Forest Products in Biocomposites

Sharma¹

2022

Biocomposites

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In recent years industries are attempting to decrease their dependency on petroleum-based fuels and products due to increased environmental issues. The tremendous increase in production and use of plastics in every sector of life has led to huge plastic waste disposal problems and also an environmental threat. In order to prevail over the present scenario, the viable and cost-effective approaches are to prepare eco-friendly bio-composites based on non-wood forest products (NWFP), a part of forest wealth of the globe, especially natural fibres, agricultural wastes and extractives. Natural fibres and extractives have many advantages viz. low density, low cost, considerable toughness properties, nontoxicity, sustainability and biodegradability. NWFP based composites may be utilized to produce non-structural parts for diverse applications in various industries as high-performance materials with interesting properties for specific applications viz. furniture, thermal, acoustic insulations and automotive industries etc. In the present chapter, opportunities of extractives, cellulosic and lignocellulosic fibres from non-wood forest products in Bio-composites will be discussed.

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Section: Chemical Modification Of Fibresmentioning

confidence: 99%

Opportunity of Non-Wood Forest Products in Biocomposites

Sharma¹

2022

Biocomposites

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“…e moisture absorption of biofibers has several unfavourable effects on their properties and thus affects the long-term performance of the composites [20]. e mechanical and thermal performances of bio/natural fibers reinforced composites (NFRC) were influenced by weight/volume fraction of fiber, fiber orientation, selection of chemical treatment method, and physical characteristics of the natural fiber [21][22][23]. However, the water absorption and thermal stability of the composite laminate were noticed to reduce with increase in weight fraction of fiber [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

A Review on the Effect of Various Chemical Treatments on the Mechanical Properties of Renewable Fiber-Reinforced Composites

Aravindh

Sathish

Raj³

et al. 2022

Advances in Materials Science and Engineering

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Increased environmental concerns and global warming have diverted effort all over the world to focus on renewable and sustainable resources for the next generation of composite products due to their recyclability, renewability, cost effectiveness, and satisfactory mechanical performance. Bio/natural fibers which are environment friendly materials employed as reinforcement have led to developing a biocomposite for reduction in greenhouse emission and carbon footprints. However, biofibers are also having some limitations that need to be addressed including poor compatibility between the reinforcing fiber matrices, high moisture absorption, swelling, poor chemical and fire resistance, and high dispersion of mechanical properties. A lot of research has been performed on physical and mechanical properties of natural fiber composite. Properties of such novel composite mainly depend on adhesion between fiber and matrices. Consequently, poor adhesion, high moisture absorption, and swelling lead to formation of crack in both the matrix and fiber. Therefore, numerous techniques have been tried till date to modify both fiber surfaces to enhance their adhesion and reduce their water absorption. This review article provides comprehensive information about effect of various surface modification techniques that include alkaline, silane, acetylation, permanganate, peroxide, benzoylation, acrylonitrile grafting, maleic anhydride grafted, acrylation, and isocyanate. In addition, the effects of cellulose, hemicellulose, lignin, and pectin of biofibers are also reported. This review concluded that chemical treatment of biofibers with 5% NaOH concentration improves the physical, mechanical, and thermal properties of the resulting composites compared to untreated fiber composites.

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“…Kenaf fiber (Hibiscus cannabinus) has been chosen for this work because it can grow under different climatic conditions. It shows properties such as low density, nonabrasiveness during processing, and high specific mechanical properties [4]. Lee reported that the tensile strength and modulus of both kenaf and jute-reinforced polypropylene composites strengthened with higher fiber loading, achieving maximum strength of 39 MPa and 1300 MPa, respectively, at 40% fiber weight fraction before declining at higher fiber weight fractions [5].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Weight Fraction and Alkaline Treatment on Catechu Linnaeus/Hibiscus cannabinus/Sansevieria Ehrenbergii Plant Fibers-Reinforced Epoxy Hybrid Composites

Raj¹,

Sathish

Mansadevi³

et al. 2022

Advances in Materials Science and Engineering

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The aim of the present work is to develop novel hybrid composites using areca, kenaf, and snake grass fibers as reinforcement and epoxy as the matrix. The areca, kenaf, and snake grass fibers were extracted from Catechu Linnaeus, Hibiscus cannabinus, and Sansevieria Ehrenbergii plants, respectively, and treated with 5% NaOH to improve the interfacial adhesion between the hydrophilic fiber and the hydrophobic matrix. Hybrid composites were developed by the compression molding technique and formulated based on the weight fraction of fibers. Tensile, flexural, and impact strength and hardness samples were prepared as per ASTM D 3039, ASTM D 790, ASTM D 256, and ASTM D 2240, respectively. The effects of alkaline treatment on developed hybrid composites were investigated. The developed hybrid composites with 20% wt. snake grass and 10% wt. areca fiber present interesting mechanical properties with a tensile strength of 58 MPa, flexural strength of 124 MPa, impact strength of 5.24 kJ/m2, and hardness of 88. The results indicate that maximum mechanical properties were obtained for alkaline-treated fiber composites with 20% wt. snake grass fiber compared to untreated fiber composites owing to better adhesion between the treated fiber and the matrix. The effect of alkaline treatment was analyzed by Fourier transform infrared. The fractured surfaces of tested samples were analyzed by scanning electron microscopy.

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A review of natural fiber composites: Extraction methods, chemical treatments and applications

Cited by 78 publications

References 38 publications

Opportunity of Non-Wood Forest Products in Biocomposites

Opportunity of Non-Wood Forest Products in Biocomposites

A Review on the Effect of Various Chemical Treatments on the Mechanical Properties of Renewable Fiber-Reinforced Composites

Investigation of Weight Fraction and Alkaline Treatment on Catechu Linnaeus/Hibiscus cannabinus/Sansevieria Ehrenbergii Plant Fibers-Reinforced Epoxy Hybrid Composites

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