scholarly journals Development and Analysis of Mechanical Properties of Caryota and Sisal Natural Fibers Reinforced Epoxy Hybrid Composites

Polymers ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 864
Author(s):  
Ayyappa Atmakuri ◽  
Arvydas Palevicius ◽  
Lalitnarayan Kolli ◽  
Andrius Vilkauskas ◽  
Giedrius Janusas
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Research Work ◽  
Fiber Composites ◽  
Single Fiber ◽  
Synthetic Fiber ◽  
Sisal Fiber ◽  
Fiber Reinforced

In recent years, natural fiber reinforced polymer composites have gained much attention over synthetic fiber composites because of their many advantages such as low-cost, light in weight, non-toxic, non-abrasive, and bio-degradable properties. Many researchers have found interest in using epoxy resin for composite fabrication over other thermosetting and thermoplastic polymers due to its dimensional stability and mechanical properties. In this research work, the mechanical and moisture properties of Caryota and sisal fiber-reinforced epoxy resin hybrid composites were investigated. The main objective of these studies is to develop hybrid composites and exploit their importance over single fiber composites. The Caryota and sisal fiber reinforced epoxy resin composites were fabricated by using the hand lay-up technique. A total of five different samples (40C/0S, 25C/15S, 20C/20S, 15C/25S, 0C/40S) were developed based on the rule of hybridization. The samples were allowed for testing to evaluate their mechanical, moisture properties and the morphology was studied by using the scanning electron microscope analysis. It was observed that hybrid composites have shown improved mechanical properties over the single fiber (Individual fiber) composites. The moisture studies stated that all the composites were responded to the water absorption but single fiber composites absorbed more moisture than hybrid composites.

scholarly journals Analysis of Mechanical and Wettability Properties of Natural Fiber-Reinforced Epoxy Hybrid Composites

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2827
Author(s):  
Ayyappa Atmakuri ◽  
Arvydas Palevicius ◽  
Madhusudan Siddabathula ◽  
Andrius Vilkauskas ◽  
Giedrius Janusas
Keyword(s):  
Mechanical Properties ◽  
Contact Angle ◽  
Epoxy Resin ◽  
Moisture Absorption ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Matrix Material ◽  
Research Work ◽  
Fiber Composites ◽  
Individual Fiber

Natural fibers have many advantages over synthetic fibers due to their lightness, low cost, biodegradability, and abundance in nature. The demand for natural fiber hybrid composites in various applications has increased recently, because of its promising mechanical properties. In this research work, the mechanical and wettability properties of reinforced natural fiber epoxy resin hybrid composites were investigated. The main aim of this research work is the fabrication of hybrid composites and exploit its importance over individual fiber composites. The composites were fabricated based on the rule of hybridization mixture (0.4 wf) of two fibers using sets of either hemp and flax or banana and pineapple, each set with 40 wt%, as well as four single fiber composites, 40 wt% each, as reinforcement and epoxy resin as matrix material. A total of two sets (hemp/flax and banana/pineapple) of hybrid composites were fabricated by using a hand layup technique. One set as 40H/0F, 25H/15F, 20H/20F, 15H/25F, 0H/40F, and the second one as 40B/0P, 25B/15P, 20B/20P, 15B/25P, 0B/40P weight fraction ratios. The fabricated composites were allowed for testing to examine its mechanical, wettability, and moisture properties. It has been observed that, in both cases, hybrid composites showed improved mechanical properties when compared to the individual fiber composites. The wettability test was carried out by using the contact angle measurement technique. All composites in both cases, hybrid or single showed contact angle less than 90°, which is associated with the composite hydrophilic surface properties. The moisture analysis stated that all the composites responded for moisture absorption up to 96 h and then remained constant in both cases. Hybrid composites absorbed less moisture than individual fiber composites.

Delamination in Drilling of Sisal/Banana Reinforced Composites Produced by Hand Lay-Up Process

2017 ◽  
Vol 867 ◽  
pp. 29-33 ◽  
Author(s):  
A. Saravana Kumar ◽  
P. Maivizhi Selvi ◽  
L. Rajeshkumar
Keyword(s):  
Natural Fiber ◽  
Signal To Noise Ratio ◽  
Research Work ◽  
Synthetic Fiber ◽  
Sisal Fiber ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Banana Fiber ◽  
Fiber Reinforced Polymer Composites ◽  
Drill Tool

Natural fiber composites are presently replacing the synthetic fiber in many fields. The present research work study is an attempt to manufacture and test the sisal/banana fiber reinforced polymer composites. Composite have been manufactured using banana and sisal fiber along with epoxy resin as reinforcement. With these composites drilling has been carried out to study the factors and combination of factors that influence the delamination of drilled unidirectional sisal-banana fiber reinforced composites. Drilling experiments were performed based on the L9-Taguchi method. Delamination factor evaluated for the selected parameters spindle speed, feed and diameter of the drill tool with the help of signal to noise ratio, ANOVA analysis and to obtain the conditions for minimum delamination.

scholarly journals Development and Testing of Pine Apple and Glass Fiber Reinforced Epoxy Hybrid Composites

2019 ◽  
Vol 8 (3) ◽  
pp. 2450-2453
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Natural Fibers ◽  
Fiber Composites ◽  
Epoxy Composites ◽  
Fiber Reinforced ◽  
Synthetic Fibers ◽  
Glass Fiber Reinforced

Usage of Natural Fiber Composites (NFC) is increased rapidly due to the bio degradability nature of the fibers. These natural fibers are mixed with synthetic fibers to obtain better mechanical properties. In this study, pine apple and glass fiber reinforced epoxy composites are developed and their mechanical properties were evaluated. Composites were prepared by varying the fibers content and by using hand layup process with glass moulds of size 160 x 160 x 3 mm3 . The obtained laminates were sliced as per the ASTM criterion to test the properties. Higher glass fiber content in the composite specimen obtained higher mechanical properties. The composites can be utilized for the purpose of manufacturing components like doors panels, desks, roof tops etc.

scholarly journals Erosion Wear Behaviour of Bamboo/Glass Fiber Reinforced Epoxy Based Hybrid Composites

2012 ◽  
pp. 78-82
Author(s):  
Sandhyarani Biswas ◽  
Prity Aniva Xess
Keyword(s):  
Glass Fiber ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Research Work ◽  
Synthetic Fiber ◽  
Single Type ◽  
Wear Behaviour ◽  
Fiber Reinforced ◽  
Advantages And Disadvantages ◽  
Glass Fiber Reinforced

Now-a-days, there is an increasing interest in hybrid composites made by combination of two or more different types of fiber in a common matrix because these materials offer a range of properties that cannot be attained with a single type of reinforcement. The fibres are either natural or synthetic and both types of fiber have advantages and disadvantages. Therefore, in this work a new class of hybrid composite reinforced with a synthetic fiber and a natural fiber is developed to get the advantage of both the fibres in terms of superior tribological properties and economy. The present research work is undertaken to investigate the erosion behaviour of short bamboo and glass fiber reinforced epoxy based hybrid composites.

Effect of Pretreatment Methods on Properties of Natural Fiber Composites: A Review

2016 ◽  
Vol 24 (7) ◽  
pp. 555-566 ◽  
Author(s):  
N. Venkatachalam ◽  
P. Navaneethakrishnan ◽  
R. Rajsekar ◽  
S. Shankar
Keyword(s):  
Mechanical Properties ◽  
Natural Fiber ◽  
Volume Fraction ◽  
Fiber Composite ◽  
Agricultural Waste ◽  
Research Work ◽  
Natural Fibers ◽  
Synthetic Fiber ◽  
Fiber Reinforced ◽  
Chemical Treatments

India as a tropical agricultural country has great potential to develop and use fiber derived from agricultural waste. Natural fibers are an important by-product of extraction process and they can be used as reinforcement in composite products. Composites are developed with unsaturated polyester resin as the matrix with natural fiber as the reinforcement. The results show decreased strength and modulus with increasing the fiber volume fraction. This indicates ineffective stress transfer between the fiber and matrix due to lower adhesion. It is necessary to bring a hydrophobic nature to the fibers by suitable chemical treatments in order to develop composites with improved mechanical properties. In these review papers, different types of natural fibers are subjected to a variety of physical and chemical treatments. The types of treatments studied in these papers include Physical treatments such as beating and heating, and chemical treatments like alkalization, silane, acetylation and benzoylation. The effects of these treatments on mechanical properties of the composites are analyzed. Fractures are analyzed by using the scanning electron microscopy (SEM). Analysis by FTIR and DMA showed that physico-chemical changes of surfaces of treated natural fibers. In general, treatments to the fibers can significantly improve adhesion and reduce water absorption, thereby improving mechanical properties of the composites. The purpose of this review paper is to summarize the research work done on various pretreatments in the preparation of natural fiber reinforced composites and to highlight the potential use of natural fiber reinforced polymer composites in industry and its potential to replace the synthetic fiber composite and conventional materials in the future.

Preparation and characterisation of glass and cotton fibers reinforced epoxy hybrid composites

2019 ◽  
Vol 48 (4) ◽  
pp. 272-276
Author(s):  
Giridharan R. ◽  
Jenarthanan M.P.
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Cotton Fiber ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Natural Fibers ◽  
Superior Performance ◽  
Cotton Fibers ◽  
Fiber Reinforced ◽  
Content Type

Purpose Natural fiber composites have been proven an alternative to conventional composites in many applications such as automotive and transportation industries owing to their eco-friendliness and abundant availability. Also, they are recyclable and biodegradable. Therefore, the need for composites having superior performance is increasing consistently, which has prompted the research reported in this paper. This paper aims to fabricate and evaluate the properties of hybrid composites using glass and cotton fiber with epoxy resin. Design/methodology/approach They were prepared by hand lay-up method, using e-glass and cotton fibers. Epoxy resin used in the preparation of composites. The composites were hybridized at two weight percentages (20 and 30 Wt.%). The prepared samples were tested to evaluate its properties, such as tensile strength, flexural strength, impact strength and scanning electron microscope . Findings Microscopic examination revealed the morphological features. Hybrid fiber reinforced epoxy composite (HFREC) exhibited better mechanical properties than the individual samples. It is clear that 30 Wt.% fraction of fiber is better in mechanical properties than 20 Wt.% fraction of fiber reinforcement in both glass fiber and cotton fiber as reinforcement. Also, the hybridization of fibers resulted in increase in properties. Research limitations/implications As cotton fibers are biodegradable, recyclable and lightweight, it has many applications and is mainly used as automotive components, aerospace parts, sporting goods and building industry when reinforced with glass and epoxy. With this scenario, the obtained results of cotton fiber reinforced composites are not ignorable, which could be of potential use, as it leads to better use of available natural fibers. Originality/value This work discovered the properties of e-glass and cotton fiber reinforced epoxy resin hybrid composites (hybridized at different weight percentages), which has not been attempted so far.

scholarly journals Mechanical Properties of Epoxy Resin Matrix Composites Reinforced with Jute Fiber, Coconut Coir and Human Hair

2019 ◽  
Vol 9 (1) ◽  
pp. 1270-1275
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Smart Materials ◽  
Human Hair ◽  
Natural Fiber ◽  
Fiber Composites ◽  
Synthetic Fiber ◽  
Jute Fiber ◽  
Resin Matrix ◽  
Coconut Coir

Presently scientist and engineers are looking for the new generation of materials that are easily biodegradable as well as maintain sustainability to protect our environment. Concept of smart materials and recycling of the waste materials are the key considerations at the face of material scientist. Nowadays natural fiber composites are preferred over conventional synthetic fiber composites in many industrial applications. In this study jute fiber, human hair and coconut coir reinforced composites bonded with epoxy resin were prepared using hand lay-up technique to compare their mechanical properties. For this purpose, an open type wooden mould was used. This study reveal that the jute fiber reinforced composite exhibit better toughness, tensile and shear strength than human hair and coconut coir composites. Also it shows that human hair composite has better hardness property than jute fiber and coconut coir composites. Overall jute fiber and human hair composites show far better mechanical properties than coconut coir composite

scholarly journals Delamination and Manufacturing Defects in Natural Fiber-Reinforced Hybrid Composite: A Review

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1323
Author(s):  
M. J. Suriani ◽  
Hannah Zalifah Rapi ◽  
R. A. Ilyas ◽  
Michal Petrů ◽  
S. M. Sapuan
Keyword(s):  
Mechanical Properties ◽  
Hybrid Composite ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Natural Fibers ◽  
Manufacturing Industries ◽  
Synthetic Fiber ◽  
Fiber Reinforced ◽  
Manufacturing Defects ◽  
Reinforced Composite

In recent years, most boat fabrication companies use 100% synthetic fiber-reinforced composite materials, due to their high performance of mechanical properties. In the new trend of research on the fabrication of boat structure using natural fiber hybrid with kevlar/fiberglass-reinforced composite, the result of tensile, bending, and impact strength showed that glass fiber-reinforced polyester composite gave high strength with increasing glass fiber contents. At some point, realizing the cost of synthetic fiber is getting higher, researchers today have started to use natural fibers that are seen as a more cost-effective option. Natural fibers, however, have some disadvantages, such as high moisture absorption, due to repelling nature; low wettability; low thermal stability; and quality variation, which lead to the degradation of composite properties. In recent times, hybridization is recommended by most researchers as a solution to natural fiber’s weaknesses and to reduce the use of synthetic fibers that are not environmentally friendly. In addition, hybrid composite has its own special advantages, i.e., balanced strength and stiffness, reduced weight and cost, improved fatigue resistance and fracture toughness, and improved impact resistance. The synthetic–nature fiber hybrid composites are used in a variety of applications as a modern material that has attracted most manufacturing industries’ attention to shift to using the hybrid composite. Some of the previous studies stated that delamination and manufacturing had influenced the performance of the hybrid composites. In order to expand the use of natural fiber as a successful reinforcement in hybrid composite, the factor that affects the manufacturing defects needs to be investigated. In this review paper, a compilation of the reviews on the delamination and a few common manufacturing defect types illustrating the overview of the impact on the mechanical properties encountered by most of the composite manufacturing industries are presented.

Assessing of Mechanical Properties of Natural Fiber Reinforced Polymer Matrix Hybrid Composites

2015 ◽  
Vol 766-767 ◽  
pp. 199-204 ◽  
Author(s):  
Kumar Jayachandran Nirmal ◽  
D. Premkumar
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Natural Fiber ◽  
Volume Fraction ◽  
Hybrid Composites ◽  
Natural Fibres ◽  
Fiber Reinforced Polymer ◽  
Resin Matrix ◽  
Reinforced Polymer ◽  
Individual Type

An experimental analysis has been carried out to investigate the mechanical properties of composites reinforced by sisal, coir, and banana fibres into epoxy resin matrix. The natural fibres were extracted by retting and manual processes. The composites fabricated by epoxy resin and reinforcement in the hybrid combination of Sisal-Banana and Sisal-Coir with the volume fraction of fibres varying from 5% to 30%. It has been identified that the mechanical properties increase with the increase of volume fraction of fibres to a certain extent and then decreases. The hybridization of the reinforcement in the composite shows greater mechanical properties when compared to individual type of natural fibres reinforced. For all the composites tested, the tensile strength of the composite increased up to 25% of volume fraction of the fibres and further for the increase in the volume fraction of fibre the mechanical properties were decreased. As same as tensile properties, the flexural and impact strength also increased linearly up to 25% of volume fraction of fibres and further for the increase in the volume fraction of fibre the mechanical properties were slightly decreased. Key Words: Sisal, Banana, Coir, Epoxy, Hybrid composite.

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