Optimization of Mechanical Properties of Green Coconut Fiber / HDPE Composites

Hussain, Syed Altaf; Pandurangadu, V.; Palanikumar, K.

doi:10.14257/ijast.2016.92.01

Cited by 23 publications

(23 citation statements)

References 8 publications

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“…These disadvantages could be overcome by replacing synthetic fibers with natural fibers which are low in density, readily available at low cost, and biodegradable. 5,6 Various natural fibers such as flax, 4 jute, 7 coir, 8 coconut, 9 sisal and banana, 10 bamboo, bagasse, lantana-camara, 11 oil palm fibers, 12 wood, 13 and rice husk 14 were used as a reinforcement material in the preparation of composites materials, and their detail physical and mechanical properties were evaluated and compared with other synthetic fibers. Similarly, research was also being carried out on the long fiber (Mauritius and Queen type) pineapple composites with their physical and mechanical properties such as Devi et al 15 explored the mechanical behavior of pineapple leaf-based long fibers (PALFs) polyester composites as function of fiber loading, fiber length, and fiber surface modification.…”

Section: Introductionmentioning

confidence: 99%

Investigation on mechanical properties of pineapple leaf–based short fiber–reinforced polymer composite from selected Indian (northeastern part) cultivars

Jagadish

Rajakumaran

Ray³

2018

Journal of Thermoplastic Composite Materials

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The natural fiber–reinforced polymer composites gaining substantial importance in recent years due to their unique properties compared to synthetic composites. In India (especially northeastern part), cultivars and industries mostly focus on pineapple fruits, leaving leaf to mainly compost or burn and decay as an agro waste. In this article, pineapple leaf–based (variety type Kew or Giant Kew from Silchar, Assam, India) short fiber–reinforced polymer composites as a function of fiber composition and composite thickness on mechanical properties are analyzed. In this regard, short pineapple leaf fibers (≈ 1 mm to 2 mm) as reinforcement + epoxy resin (Lapox (L12) resin + K6 hardener) as matrix material are used for composites. Subsequently, six different fiber compositions (as 0, 1, 5, 10, 15, and 20 wt%) with composite specimen’s thickness (as 3 and 5 mm) are prepaid. Later, mechanical properties like tensile strength, flexural strength, and toughness and hardness values for each of the composite specimens are evaluated. The result shows that the addition of short fiber can improve the mechanical properties and found in all the cases composites with 10% of reinforcement + at 5-mm thickness show better performance than the other combinations.

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Section: Introductionmentioning

confidence: 99%

Investigation on mechanical properties of pineapple leaf–based short fiber–reinforced polymer composite from selected Indian (northeastern part) cultivars

Jagadish

Rajakumaran

Ray³

2018

Journal of Thermoplastic Composite Materials

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“…Many types of natural fibres are being used nowadays. Some of the fibres that have been investigated by researchers for use in the natural composite industry include: rice husk [1,5,[9][10][11] , pineapple leaf [10,[12][13][14][15][16][17][18][19][20][21][22] bamboo [22][23][24][25], coir [25], jute, sisal, kapok [26], coconut [27] and oil palm [28]. In this study pineapple leaf fibre from a Malaysian cultivar (Josapine) was used as a reinforcing material and the matrix used is polypropylene.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of polypropylene composites reinforced with alkaline treated pineapple leaf fibre from Josapine cultivar

Kasim¹,

Selamat²,

Daud³

et al. 2016

Int. J. Automot. Mech. Eng.

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This study investigates the mechanical properties of high impact polypropylene composite reinforced with pineapple leaf fibre from the Josapine cultivar as a function of fibre loading. PLF was extracted by using a pineapple leaf fibre machine and then an alkaline treatment was conducted to enhance the properties. Samples of the composite were fabricated with 100 mm fibre length with five different fibre loadings of PLF (30, 40, 50, 60 and 70 wt%). The fabrication was made by a compression moulding technique with unidirectional fibre orientation. Related tests such as tensile, hardness and density tests were conducted to determine the effect of fibre loading. The experimental data showed that the composite with the 60 wt% fibre loading offered the highest value of tensile strength, which was about 309%, and the Young's modulus was about 540% compared to 0 wt% of PLF loading. Meanwhile, the hardness and density of the PLF/PP composites showed very similar values, with small increments from 30 wt% up to 70 wt% PLF loading compared to 0 wt% of PLF loading. The highest values are 65.38 Shore-D and 1.002 g/cm³ respectively. The results also revealed that PLF from the Josapine cultivar with alkaline treatment greatly influences the mechanical properties of PLF/PP composite.

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“…Surface treatment using stearic acid and potassium permanganate other than NaOH provide a better performance than the untreated fibers [14]. Hydrogen peroxide (H 2 O 2 ) was also used in coconut fiber treatment [9,15]. In addition to chemical treatment, coconut fiber is treated by washing and boiling to remove dirt on the surface of the fiber so as to produce a cavity [2,16].…”

Section: Introductionmentioning

confidence: 99%

The morphology of coconut fiber surface under chemical treatment

et al. 2015

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The objective of this study was to determine the effect of chemical treatment on the coconut fiber surface morphology. This study is divided into three stages, preparation of materials, treatment and testing of coconut fiber. The first treatment is coconut fiber soaked in a solution of NaOH for 3 hours with concentration, respectively 5%, 10%, 15%, and 20%. The second treatment is coconut fiber soaked in KMnO 4 solution with a concentration of 0.25%, 0.5%, 0.75%, and 1% for 3 hours. The third treatment is coconut fiber is soaked in H 2 O 2 solution with a concentration of 5%, 10%, 15%, and 20% for 3 hours. At each treatment the fiber is dried in an oven at a temperature of 90 o C for 5 hours. Coconut fibers that had been the first, second, and third treated, sorted out for chemical composition, single fiber tensile and SEM testing. Tensile strength of single coconut fiber was tested following ASTM 3379-02 by using a tensile testing LR10K Plus 10 kN Universal Materials Testing Machine. The fiber surface morphology was examined using electron microscopy Vega3 Tescan Scanning Electron Microscope (SEM) at 5kV voltage, and X-ray diffraction, 30 kV, 15 mA, at scan speed 2.000 deg./min . The result shows that the highest tensile strength of the fiber obtained in the first treatment namely N4. In general the mechanical strength of the fiber decrease slightly however, the fiber surface morphology becomes rough. NaOH treatments cause crystallization on the surface of the fiber. Crystallinity index was decreased with increasing concentration of NaOH. The second treatment caused the trench grooves on the surface of the fiber that can improve bonding between fiber and matrix.

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Optimization of Mechanical Properties of Green Coconut Fiber / HDPE Composites

Abstract: Abstract

Cited by 23 publications

References 8 publications

Investigation on mechanical properties of pineapple leaf–based short fiber–reinforced polymer composite from selected Indian (northeastern part) cultivars

Investigation on mechanical properties of pineapple leaf–based short fiber–reinforced polymer composite from selected Indian (northeastern part) cultivars

Mechanical properties of polypropylene composites reinforced with alkaline treated pineapple leaf fibre from Josapine cultivar

The morphology of coconut fiber surface under chemical treatment

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