Top PDF Mechanical Properties Of Coconut Fibre Reinforced Composites

Mechanical Properties Of Coconut Fibre Reinforced Composites

Mechanical Properties Of Coconut Fibre Reinforced Composites

Today, plastic and ceramics have the dominant for a new material for composite materials. Composite materials have grown rapidly by volume and number of applications to break through and capture new markets. These composite materials include a variety of natural ingredients such as dried fruit, rice husk, wheat husk, straw and hemp fibres can be used to provide gentle-reinforced polymer composites for commercial use for agricultural wastes. Bio-based products have a great opportunity to thrive in the world market. This is because, natural fibres have a basic interest amongst them the advantages of weight and fibre matrix adhesion,. There are various types of natural fibres in the world, consisting of sisal, hibiscus cannabinus, eucalyptus grandis pulp, malva, ramie bast, pineapple leaves, kenaf leaves, coconut, sansevieria leaves, hemp leaves, vakka, banana, jute, hemp, ramie , cotton and sugarcane fibres (Ali et al., 2012). In this project, composite materials made from polyester matrix strengthened with coconut fibre will be carried out.
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Study on the dynamic characteristic of coconut fibre reinforced composites

Study on the dynamic characteristic of coconut fibre reinforced composites

86400 Batu Pahat, Johor, Malaysia The goal of this paper is to determine the mechanical properties and dynamic characteristics of a proposed combined polymer composite which consist of a polyester matrix and coconut fibres (also known as coir fibres). The influence of fibres volume on the mechanical properties and dynamic characteristic of the composites was also evaluated. Composites with volumetric amounts of coconut fibre up to 15% were fabricated and they were arranged in randomly oriented discontinues form. Tensile test was carried out to determine the strength of material, while experimental modal analysis was executed to obtain the dynamic characteristics of the composite material. The acquired results show that the tensile modulus changes with the fibre content. The strength of coconut fibre reinforced composites tends to decrease with the amount of fibre which indicates ineffective stress transfer between the fibre and matrix. The stiffness factor also gives the same effect to the dynamic characteristic of composite where the natural frequency decreased with the increase of coconut fibre volume. However the damping peak was found to be increased by the incorporation of the fibre.
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Mechanical Properties of Coconut Fibers Reinforced Polyester Composites

Mechanical Properties of Coconut Fibers Reinforced Polyester Composites

Actually, studies about the utilization of natural fibers as reinforcement in polymeric composites are increasing due to the improvements that fibers can provide to the product. In this work, chemical modification of the coconut fibers by alkaline treatment was studied in order to use them as reinforcement in polyester resin. Coconut fibers were modified during 1 hour with sodium hydroxide solution 1% wt/v. The modified fibers were evaluated by scanning electron microscopy, X-ray diffractometry, thermal analysis and Fourier Transform infrared spectroscopy. The composites were prepared by compression molding technique using 10% wt of fibers. The mechanical properties were evaluated by tensile and fatigue tests. The surfaces of the fractured specimens were examined in order to assess the fracture mechanisms. Results presented a decrease in fatigue life of composites when applied greater tension, due to bonding interfacial, which was not adequate.
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Mechanical Performance of Coconut Coir Fibre Reinforced Urea Formaldehyde
              Composites

Mechanical Performance of Coconut Coir Fibre Reinforced Urea Formaldehyde Composites

Conclusion: The research was carried out to investigate mechanical and physical properties of coir fibre and urea formaldehyde. It was found that the content of fillers and resins play an important role in order to attain a good results. Here, the optimum composition was 70% of coir fibre with 30% resin while the lowest was 40% of coir fibre with 60% resin. Taking into account, the new fibre board composites perform a low-priced of cost and highly availability of raw materials. The viability of coconut coir reinforced UF demonstrated a valuable result based on experiment performed encompasses modulus of rupture, impact strength, hardness, porosity and density properties of the fibre board. Therefore, this material can either be an alternative to reduce pollution rate and achieving mechanical and physical properties desired for various applications which can be used in the market.
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Mechanical and thermal properties of jute fibre reinforced composites

Mechanical and thermal properties of jute fibre reinforced composites

the fibre-matrix mixing process. Extreme care was taken to achieve a uniform matrix distribution throughout the fi- bre cross-sections in the sample and removed any possible entrapped air in the matrix. Then the second layer of jute fabric was placed on the top of the first layer and above pro- cess was repeated. Afterwards, a waxed flat glass plate was placed on the top of the mat with a weight to ensure smother surface of the fabricated composites. The fibre content was 25% of the weight of the produced samples. The samples were kept at room temperature overnight then post cured at 80°C for 4 hours. The sample was released from the mould and kept in an oven at 80°C for 4 hours to post-cure. The cured panel (400 × 400 mm 2 ) was trimmed and sectioned for mechanical testing.
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Investigation on Mechanical Properties of Coconut Fiber reinforced Polyester Composites

Investigation on Mechanical Properties of Coconut Fiber reinforced Polyester Composites

International Journal of Innovative Technology and Exploring Engineering (IJITEE) ISSN: 2278-3075, Volume-8 Issue-7, May, 2019 Abstract: The composite materials reinforced with natural fibers plays a vital role for structural applications. Composites are escalating as sensible preferences in contrast to the metal combinations in numerous applications like automotives, marine and aviation, sports and products applications. Fiber composites offer numerous benefits like, high tensile strength and modulus, minimum specific gravity. In this paper it is viewed as that coconut inflorescence fiber reinforced polyester based polymer composites were manufactured by hand layup strategy and then followed by compression moulding method. The coconut fibers were exposed to alkali treatment to make the fiber free of hydrophobic substance. The mechanical properties for example tensile, flexural and izod impact strength were conducted and Scanning Electron Microscope investigation was carried out to discover the fracture failure. The results demonstrated that there is significant increment in strength of the composites contrasted with neat polymer composites. These natural fiber reinforced composites are mostly used in grain storage silos, bio gas containers, bath tubs , chairs lampshades, boats etc.
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Mechanical and Thermal Properties of Horn Fibre Reinforced Polypropylene Composites

Mechanical and Thermal Properties of Horn Fibre Reinforced Polypropylene Composites

Abstract A new particle-reinforced composite has been developed using defatted horn fibre (HF) and polypropylene (PP). Physical, mechanical, thermal and micro-structural properties of HF/PP composites with varying fibre wt% (5%, 10%, 15% and 20%) have been characterized and compared with the properties of pure PP and pure HF. Mechanical properties of pure HF are found to be very high compared to pure PP and HF/PP composites. Compared to pure PP, HF/PP composites show an increase in, tensile yield strength slightly, tensile modulus by 15.74%, flexural strength by 16.95% and flexural modulus by 59.69% and decrease in ultimate tensile strength by 15.03%, percentage elongation at break and impact strength to a considerable amount. Melt flow index for HF/PP composites decreases with increase in fibre content. Thermogravimetric analysis reveals that there is an increase in thermal stability of HF/PP composites with increase in fibre content. SEM micrograph shows that there is good compatibility between HF particles and PP. Among the HF/PP composites, composite with 15 wt% of HF particles has optimum results. The horn and HF/PP composites with low density and good properties can find application in fields like automobile, computers, construction, house ware, etc.
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Mechanical properties of sugar palm fibre-reinforced epoxy composites

Mechanical properties of sugar palm fibre-reinforced epoxy composites

Although glass fibre composite has great advantages it also has some drawbacks. Besides being costly, prolonged exposure to the glass fibres can cause harmful side effects such as acute irritation to the skin, eyes, and upper respiratory tract. Concerns for long-term development of lung scarring (i.e., pulmonary fibrosis) and cancer have been raised because fibrous glass and other synthetic vitreous fibres, when disturbed, can release fibres that can become airborne, inhaled, and retained in the respiratory tract. Natural fibres can be seen as safer, cheaper and may be better alternative to glass fibres with respect to these concerns.
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Mechanical Properties of Reinforced Banana Fibre / Bio Fibre Hybrid Polymer Composites on Review

Mechanical Properties of Reinforced Banana Fibre / Bio Fibre Hybrid Polymer Composites on Review

Keywords: Flexural properties, Natural fibers, Banana &Bio-fibres, Hybrid composites.etc. I. INTRODUCTION Banana is one of the rhizomatous plants and currently grown in 129 countries around the world. India is the largest producer of banana in the world with an estimated annual output of 13.5 million tons, of which 80% is generated from six states, namely, Tamilnadu, Maharashtra, Karnataka, Kerala, Andhra Pradesh and Gujarat. Annually about 1.5 million tons of dry banana fibres could be produced from the outer sheath of pseudo-stem. Different parts of banana trees serve different needs, including fruits as food sources, leaves as food wrapping, and stems for fiber and paper pulp. The abundant availability of natural fibre in India, has been investigated for their use in plastics, including banana fibre , sisal, coir, paper-mulberry, raphia, flax, hemp, jute, kenaf, ramie, papyrus, straw, wood fiber, oil palm, empty fruit bunch, rice husks, wheat, barley, cane (sugar and bamboo), grass reeds, water pennywort, kapok , pineapple leaf fiber and oats and those could be alternately used to reduce the cost of the composites and weight.
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Assessing Mechanical Properties of Natural Fibre

Reinforced Composites for Engineering Applications

Assessing Mechanical Properties of Natural Fibre Reinforced Composites for Engineering Applications

2.2. Fibre Treatment In this study, chemical resetting was used. The procedure involves NaOH solution treatment, water washing and drying. Natural fibres are extracted from their parent plant. The ukam, sisal and banana are extracted from the back of their stems, while hemp and coconut are ex- tracted from their fruits. The natural fibres, after being extracted, are washed with water to remove gums. The fibres are then treated with sodium hydroxide solution and rammed. The treated fibre was allowed to dry in the sun for 3 days. After which the fibres are laid in the mold with the resin at the ratio of 30% to 70%. It was allowed to cure for about 20 days.
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Mechanical properties of pultruded Kenaf fibre-reinforced vinyl ester composites

Mechanical properties of pultruded Kenaf fibre-reinforced vinyl ester composites

INTRODUCTION 1.1 Research background Recently, there is great awareness within the society on the issues of sustainability and environmental friendliness. As far as composite technology is concerned, these issues are addressed partly by introducing natural fibres in polymer matrices. Natural fibres offer many features that are not found in conventional fibres (glass and carbon fibres) such as recyclability, biodegradability, abundance, low cost, and low processing energy consumption (Sapuan et al., 2003; Sastra et al., 2006; Rashdi et al., 2009;). Earlier past research works have shown that there are many natural fibres such as coir, hemp, jute, kenaf, sugar palm, pineapple leaf, and banana stem demonstrated the ability to replace the conventional fibres. Natural fibres have been developed as reinforcements or fillers in biocomposites. Studies on chemical, physical, mechanical and thermal properties of the natural fibres show very encouraging results, which made them suitable for reinforcements and fillers in polymer composites.
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Investigation of Mechanical Properties of Agave Americana Fibre Reinforced Hybrid Composites

Investigation of Mechanical Properties of Agave Americana Fibre Reinforced Hybrid Composites

The use of composites filled with particles in polyester system has gained significant importance in the development of thermosetting composites. One of the most important focuses in achieving this goal is to develop a new material, which possesses a strength-to-weight ratio that far exceeds any of the present materials. polyester is the most important matrix used in the high- performance transportation systems. When polyester combines with glass/carbon fibers, it results in advanced composites, which have sound-specific properties such as impact, hardness, tensile, strength, modulus, and tri-bological properties. The new found properties make this material very attractive for use in aerospace applications. A rough estimation has it that for every unit of weight reproduction in an aircraft, there is a considerably less consumption of fuel or higher load capacity, and hence materials offer load saving [6-9]. Hybrid composites are materials are made by combining two or more different types of fibers in a common matrix.
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Effect of Fibre Type on Mechanical Properties of Nonwoven Reinforced TPU Composites

Effect of Fibre Type on Mechanical Properties of Nonwoven Reinforced TPU Composites

Nonwoven-reinforced composites were produced using both low modulus fibres (lyocell, polyethylene terephthalate, and polyamide) and high modulus aramid fibres (polyphenylene terephthalamide) in thermoplastic polyurethane (TPU) matrix. Preferentially oriented web preforms were prepared by carding and pre-needling before impregnating the nonwovens in a thermoplastic polyurethane resin matrix. Composites were prepared by compression moulding and mechanical properties were evaluated. Scanning Electron Microscopy was employed to study the fibre-to-matrix interface in the nonwoven-reinforced composites. It was found that nonwoven reinforcement provided a range of mechanical properties, mainly linked to fibre properties and orientation of fibres in the web, apparently unaffected by the mechanical properties of the web. Furthermore, all studies fibres were thoroughly embedded in the matrix.
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Assessing Mechanical Properties of Natural Fibre Reinforced Composites for Engineering Applications

Assessing Mechanical Properties of Natural Fibre Reinforced Composites for Engineering Applications

2.2. Fibre Treatment In this study, chemical resetting was used. The procedure involves NaOH solution treatment, water washing and drying. Natural fibres are extracted from their parent plant. The ukam, sisal and banana are extracted from the back of their stems, while hemp and coconut are ex- tracted from their fruits. The natural fibres, after being extracted, are washed with water to remove gums. The fibres are then treated with sodium hydroxide solution and rammed. The treated fibre was allowed to dry in the sun for 3 days. After which the fibres are laid in the mold with the resin at the ratio of 30% to 70%. It was allowed to cure for about 20 days.
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Evaluation of Mechanical Properties of Glass-Jute Fibre Reinforced Hybrid Composites

Evaluation of Mechanical Properties of Glass-Jute Fibre Reinforced Hybrid Composites

KEYWORDS: Glass-Jute Fibre reinforced hybrid composite, Fibre Reinforced Polymer Composite (FRP) I. I NTRODUCTION Hybrid polymeric composites are new and more developed composites as compared to the traditional fiber reinforced polymer composites. FRP composite contains on one reinforcing phase in the single matrix but hybrids can have more than one reinforcing phase and a single matrix phase or single reinforcing phase with multiple matrix phases or multiple reinforcing. Nowadays, composite materials are used in large number of engineering applications such as aviation, automobile and robotics due to versatility in their properties which enables them to be applied in large number of fields. Other reasons are their light weight, corrosion resistance and durability. Composite materials are commonly classified at following two distinct levels: The first level of classification is usually made with respect to the matrix constituent. The major composite classes include Organic Matrix Composites (OMCs), Metal Matrix Composites (MMCs) and Ceramic Matrix Composites (CMCs). Polymer Matrix Composites (PMCs) and carbon matrix composites commonly referred to as carbon-carbon composites. The second level of classification refers to the reinforcement form - fibre reinforced composites, laminar composites and particulate composites. Fibers are the important class of reinforcements, as they satisfy the desired conditions and transfer strength to the matrix constituent influencing and enhancing their properties as desired. Glass fibers are the earliest known fibers used to reinforce materials [1].The authors in [2] have applied linear and polynomial equations for finding the mechanical properties, with a simple algorithm that links them. This technique is the accurate method available to determine modulus of elasticity and toughness of the anisotropic materials like composites.
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Fabrication and Study of Mechanical Properties of Bamboo Fibre Reinforced Bio-Composites

Fabrication and Study of Mechanical Properties of Bamboo Fibre Reinforced Bio-Composites

V. CONCLUSIONS Bamboo fiber reinforced epoxy composites have been fabricated with varying fiber concentration. The experimental analysis has shown that bamboo fiber reinforcement in the epoxy matrix has improved the mechanical properties of composite structure. The composites have been fabricated using the hand-lay-up method, which is one of the simplest methods to fabricate the composites under normal conditions. The fabricated composites are of good quality with appropriate bonding between the fiber and resin. However the presence of voids is unavoidable in composite fabrication, particularly through hand-lay-up route. The presence of pores and voids in the composite structure significantly affect a number of mechanical properties and even the performance of the composites. Higher void contents usually mean lower fatigue resistance and greater susceptibility to water penetration. While studying the fiber variations, the increase in fiber loading has improved the hardness but reduced the tensile strength and flexural strength of the composites. This decrease is attributed to the inability of the fiber to support the stress transferred from the polymer matrix. Also the poor interfacial bonding generates partial spaces between the fiber and matrix material, hence resulting in a weak structure.
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Study of Mechanical and Flexural properties of coconut shell ash reinforced epoxy composites

Study of Mechanical and Flexural properties of coconut shell ash reinforced epoxy composites

11 from being lighter and stronger, they can offer better performance than metals at high temperatures and do not develop potentially dangerous weaknesses such as fractures and fatigue. Further, the need of composite for lighter construction materials and more seismic resistant structures has placed high emphasis on the use of new and advanced materials that not only decreases dead weight but also absorbs the shock & vibration through tailored microstructures. Composites are now extensively being used for rehabilitation/ strengthening of pre-existing structures that have to be retrofitted to make them seismic resistant, or to repair damage caused by seismic activity. Unlike conventional materials (e.g., steel), the properties of the composite material can be designed considering the structural aspects. The design of a structural component using composites involves both material and structural design. Composite properties (e.g. stiffness, thermal expansion etc.) can be varied continuously over a broad range of values under the control of the designer. Careful selection of reinforcement type enables finished product characteristics to be tailored to almost any specific engineering requirement. Whilst the use of composites will be a clear choice in many instances, material selection in others will depend on factors such as working lifetime requirements, number of items to be produced (run length), complexity of product shape, possible savings in assembly costs and on the experience & skills the designer in tapping the optimum potential of composites..
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The Mechanical Behaviour of Eggshell and Coconut Coir Reinforced Composites

The Mechanical Behaviour of Eggshell and Coconut Coir Reinforced Composites

Abstract--In present days, automobile industries are rapidly increased. All the automobile industries are in the process of supplying the vehicles at low cost. The major cost of the automobile components is its body parts. As per the European Union and Asian countries automotive components end life is very important factor in the design of the automotive. So everybody is concentrating on new materials which will be strong enough, less weight, recyclable with reduced cost. Hence all the researchers are concentrated on the composite materials which have all the above properties. Generally the composite materials are synthetic and natural. In that natural fibre is ahead of synthetic with their low cost, low density, stiffness, fairly mechanical properties, high specific strength, non-abrasive, eco- friendly and biodegradable characteristics. In our country much amount of coconut coir fibre is obtainable which have good tensile strength. Similarly large amount of egg shells are also on hand as wastage from food industries which normally produces pollution. But this egg shells are having good compressive strength. Hence the present work is concentrated on coconut coir fibres and egg shell composites. The strength of the composites depends on the compositions of the ingredients. So to obtain new composite materials different proportions of coconut coir and egg shell powder is added and the mechanical properties of all the components are tested and the same is represented.
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STUDY OF MECHANICAL PROPERTIES OF COCONUT SHELL PARTICLE AND COIR FIBRE REINFORCED EPOXY COMPOSITE

STUDY OF MECHANICAL PROPERTIES OF COCONUT SHELL PARTICLE AND COIR FIBRE REINFORCED EPOXY COMPOSITE

Epoxy resin is widely used in industrial application because of their high strength and mechanical adhesiveness characteristic. Brush Bond makes epoxy resin SY-12(319) is a liquid solvent free epoxy resin. It has versatile applications in technical and industrial applications. Curing takes place at room temperature and atmospheric pressure after addition of hardener. Cure shrinkage is generally very less and may be still further reduced by the addition of fillers. The resin can be coloured easily. Fully cured mixture has excellent mechanical, thermal properties and atmospheric attack. The castings have good ageing characteristics. It is odourless, tasteless and completely non- toxic. Resin can be stored for at least a year if they are stored under cool, dry conditions in the original containers. It is also good solvent and has good chemical resistance over a wide range of temperature. In the present investigation SY-12(319) purchased from M/s RESINOVA CHEMIE Limited, Kanpur India has been used as matrix material. The epoxy used is colourless, odourless and completely nontoxic.
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A Study On Mechanical Properties Of Hybrid Kenaf/Kevlar Fibre Reinforced Thermoplastic Composites

A Study On Mechanical Properties Of Hybrid Kenaf/Kevlar Fibre Reinforced Thermoplastic Composites

iii ACKNOWLEDGEMENTS First of all, I would like to express my sincere gratitude to my supervisor Assoc. Prof. Dr. Sivakumar A/L Dhar Malingam from Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka for his support, encouragement and professional guidance during the entire period of final year project.

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