scholarly journals Treatment of Natural Fiber for Application in Concrete Pavement

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Anteneh Geremew ◽  
Pieter De Winne ◽  
Tamene Adugna Demissie ◽  
Hans De Backer
Keyword(s):  
Natural Fiber ◽  
Low Cost ◽  
Natural Fibers ◽  
Specific Treatment ◽  
Fiber Surface ◽  
Drying Shrinkage ◽  
Concrete Technology ◽  
Treatment Techniques ◽  
Concrete Crack ◽  
Concrete Production

Concrete crack is one of the main problems observed in concrete technology due to drying shrinkage. Incorporating fibers in concrete production is one of the mechanisms implemented to mitigate cracks. Nowadays, investigators concentrate on different techniques to replace human-made fiber with existing natural fibers for fiber-reinforced composite material. Utilization of natural fiber has an initiation for the development of eco-friendly materials by reducing damages caused by human-made materials and saving nonrenewable resources. Natural fibers are readily and abundantly available, sustainable, and biodegradable, with low cost and low density, and have superior specific properties. Nevertheless, there are some limitations of natural fiber compared to human-made fiber. Consequently, significant energy was applied to alter natural fiber’s surface and morphology using physical, chemical, and biological treatment techniques to overcome the limitation. The primary intention of surface treatment is to modify the bond between the fiber surface and the polymer matrix. However, based on this literature review, there were no specific treatment techniques to be followed to select the best one from the others as criteria. It should include all parameters to consider starting from the stage from the cradle to the grave, cost of chemicals, transportation, and labors, including energy consumption and effluent energy. Additionally, their environmental effect also investigated in detail to compare each other.

Review of Natural Fiber Reinforced Elastomer Composites

2018 ◽  
Author(s):  
Pantea Kooshki ◽  
Tsz-Ho Kwok
Keyword(s):  
Mechanical Properties ◽  
Natural Fiber ◽  
Low Cost ◽  
Natural Fibers ◽  
Fiber Surface ◽  
Specific Strength ◽  
Elastomeric Matrix ◽  
The Matrix ◽  
Fiber Matrix ◽  
Physical Treatments

This paper is a review on mechanical characteristics of natural fibers reinforced elastomers (both thermoplastics and thermosets). Increasing environmental concerns and reduction of petroleum resources attracts researchers attention to new green eco-friendly materials. To solve these environmental related issues, cellulosic fibers are used as reinforcement in composite materials. These days natural fibers are at the center of attention as a replacement for synthetic fibers like glass, carbon, and aramid fibers due to their low cost, satisfactory mechanical properties, high specific strength, renewable resources usage and biodegradability. The hydrophilic property of natural fibers decreases their compatibility with the elastomeric matrix during composite fabrication leading to the poor fiber-matrix adhesion. This causes low mechanical properties which is one of the disadvantages of green composites. Many researches have been done modifying fiber surface to enhance interfacial adhesion between filler particles and elastomeric matrix, as well as their dispersion in the matrix, which can significantly affect mechanical properties of the composites. Different chemical and physical treatments are applied to improve fiber/matrix interlocking.

A Review of Chemical Treatments on Natural Fibers-Based Hybrid Composites for Engineering Applications

2018 ◽  
pp. 16-37
Author(s):  
Sudeepan Jayapalan
Keyword(s):  
Moisture Absorption ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Low Cost ◽  
Natural Fibers ◽  
Fiber Surface ◽  
Physical And Mechanical Properties ◽  
Engineering Applications ◽  
Chemical Treatments ◽  
Water Absorption Property

The development of hybrid-fiber-reinforced composites has increased in recent decades because of its abundance, low cost, low weight, high strength, stiffness, and bio-degradability, thereby increasing its engineering applications. However, the major drawbacks of natural fibers in composites are their high moisture absorption and poor compatibility between fiber and matrix. Hence, chemical treatments are primarily considered to modify the fiber surfaces with the objective to improve interfacial bonding between fiber and matrix. This chapter addresses an overview of chemical treatments and their effects on natural fibers-based hybrid composites are reviewed. The chemical treatments include alkali, silane, maleated, and others, focused mainly on hybrid natural fiber composites. The significance of chemical treatment of natural fibers aimed to improve adhesion between fiber surface and matrix along with reduction in water absorption property to improve physical and mechanical properties as compared with untreated fibers for use in components of engineering applications is explored.

Study on Thermal, Thermo-Mechanical, and Flexural Properties of Jute Fiber Surface Modification and Its Reinforced Composite

2021 ◽  
Vol 8 (5) ◽  
pp. 11-17
Author(s):  
Syed Rashedul Islam ◽  
Abeer Alassod ◽  
Mohammed Kayes Patoary ◽  
Tayyab Naveed ◽  
Md Arshad Ali ◽  
...  
Keyword(s):  
Natural Fiber ◽  
Natural Fibers ◽  
Fiber Surface ◽  
Jute Fiber ◽  
Flexural Properties ◽  
Reinforced Composites ◽  
Acid Pretreatment ◽  
Chemical Treatments ◽  
Jute Fibers ◽  
Composite Properties

In recent years, reinforced composites from biodegradable and natural fibers have a worldwide scope for advanced applications. However, the core limitation of natural fiber reinforced composites are poor consistency among supporting fibers and the matrix. Therefore, optimal structural performance of fibers and matrix is desirable. In this study, chemical treatments (i.e., alkali pretreatment, acid pretreatment, and scouring) were applied to jute fibers for improvement of composite properties. Thermal, thermo-mechanical, and flexural properties, and surface morphology, of untreated and treated jute fibers were studied on the treated fibers. Jute fiber/epoxy composite properties were analyzed by thermogravimetric analysis (TGA), flexural strength and modulus, and dynamic mechanical analysis (DMA). The chemical treatments had a significant impact on the properties of jute fiber composites.

Buckling analysis of natural fiber reinforced composites

2021 ◽  
Vol 7 (2) ◽  
pp. 58
Author(s):  
Celal Çakıroğlu ◽  
Gebrail Bekdaş
Keyword(s):  
Composite Plate ◽  
Natural Fiber ◽  
Low Cost ◽  
Natural Fibers ◽  
Experimental Studies ◽  
Fiber Reinforced Composites ◽  
Fiber Types ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Element Analysis

In the recent years natural fiber reinforced composites are increasingly receiving attention from the researchers and engineers due to their mechanical properties comparable to the conventional synthetic fibers and due to their ease of preparation, low cost and density, eco-friendliness and bio-degradability. Natural fibers such as kenaf or flux are being considered as a viable replacement for glass, aramid or carbon. Extensive experimental studies have been carried out to determine the mechanical behavior of different natural fiber types such as the elastic modulus, tensile strength, flexural strength and the Poisson’s ratio. This paper presents a review of the various experimental studies in the field of fiber reinforced composites while summarizing the research outcome about the elastic properties of the major types of natural fiber reinforced composites. Furthermore, the performance of a kenaf reinforced composite plate is demonstrated using finite element analysis and results are compared to a glass fiber reinforced laminated composite plate.

A Review of Recent Developments in Natural Fiber Composites and their Mechanical, Thermal & Machinabilty Properties

2018 ◽  
Vol 1148 ◽  
pp. 61-71 ◽  
Author(s):  
V. Joshua Jaya Prasad ◽  
Puli Suresh Kumar
Keyword(s):  
Exponential Growth ◽  
Power Plants ◽  
Natural Fiber ◽  
Low Cost ◽  
Natural Fibers ◽  
Fiber Composites ◽  
Light Weight ◽  
Natural Fiber Composites ◽  
Research And Innovation ◽  
Recent Developments

Recently, there has been an exponential growth in research and innovation in the natural fiber composites (NFC) due to their diversified applications in the field of engineering. Biodegradability, light weight, formability and availability at low cost are the attractive merits of the natural fibers. Mechanical, Thermal and Machinabilty properties of Natural fiber composites have their own advantage and adoptability in the field of automobile, power plants, aeronautical, defense and naval applications. This review aims to provide an overview of the comparison of differ types of Natural fiber composites, factors that affect the mechanical, thermal and machinabilty of NFCs and their engineering applications.

Machining parametric study on the natural fiber reinforced composites: A review

2021 ◽  
pp. 095440622110637
Author(s):  
Vijay Kumar Mahakur ◽  
Sumit Bhowmik ◽  
Promod Kumar Patowari
Keyword(s):  
Natural Fiber ◽  
Low Cost ◽  
Natural Fibers ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Machining Processes ◽  
Industrial Sectors ◽  
The Matrix ◽  
Input Variables

Nowadays, the utilization of natural fiber reinforced composite has increased frequently. These natural fibers have significant features like low cost, renewable, and, more importantly, biodegradable in nature, making them to be utilized for various industrial sectors. However, the massive demand for natural fiber reinforced composites (NFRC), forces them to be machined and operated, which is required for countless areas in multiple industries like automotive, marine, aerospace and constructions. But before obtaining the final shape of any specimen, this specimen should come across numerous machining processes to get the desired shape and structure. Therefore, the present review paper focused on the various aspects during conventional and unconventional machining of the NFRC. It covers the work by exploring the influence of all input variables on the outcome produced after machining the NFRC. Various methodologies and tools are also discussed in this article for reducing the machining defects. The machining of the NFRC is found as a challenging task due to insufficient interlocking between the matrix and fibers, and minimum knowledge in machining characteristics and appropriate input parameters. Thus, this review is trying to assist the readers to grasp a basic understanding and information during the machining of the NFRC in every aspect.

scholarly journals Performance of lightweight mortar reinforced with doum palm fiber

2020 ◽  
pp. 002199832097519
Author(s):  
Fatma Naiiri ◽  
Allègue Lamis ◽  
Salem Mehdi ◽  
Zitoune Redouane ◽  
Zidi Mondher
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Natural Fiber ◽  
Cement Mortar ◽  
Low Cost ◽  
Natural Fibers ◽  
Construction Materials ◽  
Mechanical And Thermal Properties ◽  
Palm Fiber ◽  
And Control

Natural fibers are increasingly used in composites because of their low cost and good mechanical properties. Cement reinforced with natural fibersis contemplates as a new generation of construction materials with superior mechanical and thermal performance. This study of three sizes’effect of Doum palm fiber explores the mortar’s behavior reinforced with different fiber ratio. The aim is to determine the optimal addition to improve mechanical and thermal properties of natural fiber reinforced cements. Physical, mechanical and thermal properties of composite are examined. Tensile properties of Doum fibers are verified to determine their potential as reinforced material. Findings prove that the use of alkali-treated Doum fiber as reinforcement in cement mortar composite leads to the upgrading of the mechanical properties including thermo-physical properties against composites reinforced with raw fibers and control cement mortars. While, the compression and flexural strength of the cement mortar reinforced with alkali-treated Doum fiber with diameter 0.3 mm (CT3) are metered to be 11.11 MPa, 5.22 MPa, respectively for fiber content 0.5%. Additionally, based on thermo-physical tests, it is assessed that the thermal conductivity and diffusivity decrease for cement mortar reinforced with Doum fiber with diameter 0.2 mm (CT2).

scholarly journals Mechanical Properties of Natural-Fiber-Reinforced Biobased Epoxy Resins Manufactured by Resin Infusion Process

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2841 ◽  
Author(s):  
Mauricio Torres-Arellano ◽  
Victoria Renteria-Rodríguez ◽  
Edgar Franco-Urquiza
Keyword(s):  
Epoxy Resins ◽  
Mechanical Characterization ◽  
Natural Fiber ◽  
High Strain ◽  
Low Cost ◽  
Natural Fibers ◽  
Fiber Reinforced ◽  
Resin Infusion ◽  
New Applications

This work deals with the manufacture and mechanical characterization of natural-fiber-reinforced biobased epoxy resins. Biolaminates are attractive to various industries because they are low-density, biodegradable, and lightweight materials. Natural fibers such as Ixtle, Henequen, and Jute were used as reinforcing fabrics for two biobased epoxy resins from Sicomin®. The manufacture of the biolaminates was carried out through the vacuum-assisted resin infusion process. The mechanical characterization revealed the Jute biolaminates present the highest stiffness and strength, whereas the Henequen biolaminates show high strain values. The rigid and semirigid biolaminates obtained in this work could drive new applications targeting industries that require lightweight and low-cost sustainable composites.

Influence of Montmorillonite Treated with Cetyl Trimethyl Ammonium Bromide Addition in Epoxy-Kenaf Composites

2015 ◽  
Vol 754-755 ◽  
pp. 235-239
Author(s):  
A. Zuliahani ◽  
H.D. Rozman ◽  
Abdul Rahman Rozyanty
Keyword(s):  
Cetyl Trimethyl Ammonium Bromide ◽  
Natural Fiber ◽  
Environmental Concern ◽  
Low Cost ◽  
Natural Fibers ◽  
Synthetic Fiber ◽  
Ammonium Bromide ◽  
Synthetic Fibers ◽  
Cetyl Trimethyl Ammonium ◽  
Kenaf Composites

The use of natural fiber as reinforcement in polymer composites has gained importance recently due to environmental concern and its abundance availability from agricultural crops and wood industry [1]. Many advantages offered by natural fibers over synthetic fibers include low density, greater deformability, low cost per unit volume, recyclability and biodegradability [2-3]. In addition, the mechanical properties of natural fibers such as flax, hemp, jute, sisal and kenaf are comparable with glass fiber in respect of strength and modulus [4]. Hence, many studies have been carried out to replace the synthetic fiber for composite preparation.

Synthesis and Mechanical Characterization of Sisal-Epoxy and Hybrid-Epoxy Composites in Comparison with Conventional Fiber Glass-Epoxy Composite

2014 ◽  
Vol 984-985 ◽  
pp. 285-290
Author(s):  
K. Hari Ram ◽  
R. Edwin Raj
Keyword(s):  
Mechanical Strength ◽  
Mechanical Characterization ◽  
Natural Fiber ◽  
Epoxy Composite ◽  
Low Cost ◽  
Glass Fibers ◽  
Natural Fibers ◽  
Impact Testing ◽  
Natural Glass

Polymer composites reinforced with natural fibers have been developed in recent years, showing significant potential for various engineering applications due to their inherent sustainability, low cost, light weight and comparable mechanical strength. Sisal is a natural fiber extracted from leaves of Agave Sisalana plants and substituted for natural glass fiber. Six different combinations of specimens were prepared with sisal, sisal-glass and glass fibers with epoxy as matrix at two different fiber orientation of 0-90° and ±45°. Mechanical characterization such as tensile, flexural and impact testing were done to analyze their mechanical strength. It is found that the hybrid composite sisal-glass-epoxy has better and comparable mechanical properties with conventional glass-epoxy composite and thus provides a viable, sustainable alternate polymer composite.

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