Tensile and Bending Properties of Jute Fiber Mat Reinforced Unsaturated Polyester Matrix Composites

Elbadry, Elsayed A.; Aly-Hassan, Mohamed S.; Hamada, Hiroyuki

doi:10.1115/imece2011-62409

Cited by 10 publications

(8 citation statements)

References 18 publications

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“…The 25% volume fraction of the cotton fibers composite have the maximum mechanical properties 51 and its density decreases up to 2.6% 66 . The Izod impact strength and impulse impact energy increase as the fiber content increases and the improvement occurred at 11 wt.% fiber content compared to that of the neat resin 67 . The percentage elongation of coir-glass fiber reinforced composite is found to be higher than other composites, and hence it may have more ductile property in nature 68 .…”

Section: Water Absorption Of Untreated and Treated Natural Fibermentioning

confidence: 90%

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

Venkatachalam

Navaneethakrishnan

Rajsekar

et al. 2016

Polymers and Polymer Composites

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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.

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Section: Water Absorption Of Untreated and Treated Natural Fibermentioning

confidence: 90%

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

Venkatachalam

Navaneethakrishnan

Rajsekar

et al. 2016

Polymers and Polymer Composites

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“…The flexural strength and flexural modulus were calculated with eqs. (8) and (9), respectively:

σ = true(3 F L true) / true(2 b t^{2} true)

E = true(L^{3} m true) / true(4 b t^{3} true)

where F is the maximum load (N), L is the support span (mm), b is the width of the sample (mm), t is the thickness of the samples (mm), m is the slope of the initial straight line portion of the load–deflection curve, σ is the flexural strength (MPa), and E is the flexural modulus (MPa).…”

Section: Methodsmentioning

confidence: 99%

Effect of the dissolution time on the structure and properties of lyocell‐fabric‐based all‐cellulose composite laminates

Adak

Mukhopadhyay

2016

J of Applied Polymer Sci

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In this study, all-cellulose composite laminates were prepared from lyocell fabric with ionic liquid (1-butyl-3-methyl imidazolium chloride), a conventional hand layup method, and compression molding. Eight layers of lyocell fabric, which were impregnated with ionic liquid, were stacked symmetrically and hot-pressed under compression molding for various times; this resulted in the partial dissolution of the surface of the lyocell fibers. The dissolved cellulose held the laminas together and resulted in a consolidated laminate. Finally, the prepared laminate was impregnated in water to remove the ionic liquid and to regenerate a matrix phase in situ; this was followed by hot-press drying. Optical microscopy and scanning electron microscopy studies were used to analyze composite structures. With increasing dissolution time, the void content in the composites decreased, and the interlaminar adhesion improved. For LC-2h and LC-3h, the highest tensile strength and modulus values obtained were 48.

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“…Jute fabric/jute mat composite panels were prepared with different fiber weight contents (26,36, and 46 wt%) and the specimens of required dimensions were cut and used for testing. For comparison, the same procedure was applied to fabricate the jute mat composites without skin layers with 11, 14, 22, and 32 wt%, and the details were mentioned in [22]. Fiber weight content was determined simply by determining the weight of the reinforcement after drying directly and the weight of the composites after postcure process and dividing the weight of reinforcement by the weight of the composites.…”

Section: Preparation Of the Compositementioning

confidence: 99%

Mechanical Properties of Natural Jute Fabric/Jute Mat Fiber Reinforced Polymer Matrix Hybrid Composites

Elbadry

Aly-Hassan

Hamada

2012

Advances in Mechanical Engineering

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Recycled needle punched jute fiber mats as a first natural fiber reinforcement system and these jute mats used as a core needle punched with recycled jute fabric cloths as skin layers as a second natural fiber reinforcement system were used for unsaturated polyester matrix composites via modifying the hand lay-up technique with resin preimpregnation into the jute fiber in vacuum. The effect of skin jute fabric on the tensile and bending properties of jute mat composites was investigated for different fiber weight contents. Moreover, the notch sensitivity of these composites was also compared by using the characteristic distance d o calculated by Finite Element Method (FEM). The results showed that the tensile and flexural properties of jute mat composites increased by increasing the fiber weight content and by adding the jute fabric as skin layers. On the other hand, by adding the skins, the characteristic distance decreased and, therefore, the notch sensitivity of the composites increased. The fracture behavior investigated by SEM showed that extensive fiber pull-out mechanism was revealed at the tension side of jute mat composites under the bending load and by adding the jute cloth, the failure mode of jute mat was changed to fiber bridge mechanism.

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Tensile and Bending Properties of Jute Fiber Mat Reinforced Unsaturated Polyester Matrix Composites

Cited by 10 publications

References 18 publications

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

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

Effect of the dissolution time on the structure and properties of lyocell‐fabric‐based all‐cellulose composite laminates

Mechanical Properties of Natural Jute Fabric/Jute Mat Fiber Reinforced Polymer Matrix Hybrid Composites

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