Influence of coupling agent content on the properties of high density polyethylene composites reinforced with oil palm fibers

Kakou, Charles Amani; Arrakhiz, F.Z.; Trokourey, Albert; Bouhfid, Rachid; Qaiss, Abou el kacem; Rodrigue, Denis

doi:10.1016/j.matdes.2014.06.044

Cited by 80 publications

(49 citation statements)

References 24 publications

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“…A similar trend has been reported for oil palm-reinforced high-density polyethylene (HDPE) composites with the influence of coupling agent (maleated PP) that the impact strength value of HDPE/ oil palm composites decreased markedly when compared to the neat HDPE matrix and slightly influenced with MAPP content. 25 Water absorption of PP/hemp fiber containing different amounts of hemp fiber composites as a function of time is demonstrated in Figure 6. One can recognize that the water sorption behavior was considered depending on the hemp contents.…”

Section: Effect On the Mechanical Properties Of The Compositementioning

confidence: 99%

Polypropylene/hemp woody core fiber composites: Morphology, mechanical, thermal properties, and water absorption behaviors

Ngaowthong

Rungsardthong

Siengchin

2016

Advances in Mechanical Engineering

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Natural fiber composites composed of polypropylene, maleic anhydride-graft-polypropylene, and hemp woody core fiber were produced by two-roll mill mixing. The hemp woody core fiber was treated by alkaline. The morphology of the polypropylene/hemp woody core fiber composites was studied by scanning electron microscopy technique. The mechanical and thermo-mechanical properties of the polypropylene/hemp woody core fiber composites were determined in tensile, flexural tests, and thermogravimetric analysis, respectively, and discussed. It was found that incorporation of hemp woody core fiber in polypropylene increased the tensile and flexural modulus. Note that the stiffness of short hemp woody core fiber/polypropylene composites was markedly improved. However, the flexural and impact strength of polypropylene/hemp woody core fiber composites was reduced compared to the neat polypropylene. Incorporation of hemp fiber increased the water uptake compared to the neat polypropylene. It was established that the Fick's law was fairly applicable to the water absorption results. The stiffness and thermogravimetric analysis behavior of the polypropylene/hemp woody core fiber composites were markedly affected by the surface treatments.

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Section: Effect On the Mechanical Properties Of The Compositementioning

confidence: 99%

Polypropylene/hemp woody core fiber composites: Morphology, mechanical, thermal properties, and water absorption behaviors

Ngaowthong

Rungsardthong

Siengchin

2016

Advances in Mechanical Engineering

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“…24,25 The band around 1250 cm À1 is attributed to the C-O-O stretching in lignins 24 and the band at 1040 cm À1 is assigned to the C-OH stretching vibration of cellulose. 13,16 The FT-IR spectrum of the hybrid polymer composites (Figure 3(b)) shows the main characteristics band of HDPE polymer than palm oil fibers and coir fibers. It was observed that by using a coupling agent (MA), new bands appeared at 1646-1643, 1610-1605, and 1512 cm À1 .…”

Section: Fourier Transform-infrared Spectroscopymentioning

confidence: 99%

“…coir fibers are more rigid than oil palm fibers. 13,16 Furthermore, the tensile properties have not affected by fibers variety, the composites reinforced with coir fibers (40 wt%) have a tensile strength value of 8.12 MPa, while the oil palm fibers composites (40 wt%) noted 7.18 MPa. These results can be related to the affinity and interactions between both fibers and HDPE matrix.…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

Hybrid composites based on polyethylene and coir/oil palm fibers

Kakou

Essabir

Bensalah

et al. 2015

Journal of Reinforced Plastics and Composites

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In this work, hybrid composites were produced by blending oil palm fibers with coir fibers and high-density polyethylene for fixed fiber content (40 wt%). The composites were manufactured by twin-screw extrusion followed by compression molding. In particular, the effect of coupling agent (maleated polyethylene) concentration (0, 2, and 4 wt%) was investigated. From the composites obtained, the morphological, structural, and thermal properties were evaluated via scanning electron microscopy, Fourier transformed-infrared spectrometry, and thermogravimetric analysis. The effect of fiber ratio and compatibilization on mechanical performances was studied in tension, flexion, torsion, and impact. The results showed that the compatibilized composites have better fiber dispersion/distribution (homogeneity) due to chemical bonding leading to good interfacial adhesion. All the mechanical properties increased with the presence of fibers and compatibilizer, with non-hybrid composites of coir and oil palm fibers exhibiting the highest and lowest moduli, respectively.

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“…Therefore, in order to improve the interaction between natural fiber and polymer matrix, it is necessary to decrease the surface hydrophilicity of the natural fiber by surface modification [10,11]. Recently, there are various modification methods for natural fiber that have been reported in the literature, such as sodium hydroxide, maleic anhydride, coupling agent, acetic anhydride, graft copolymers and enzyme modification [12][13][14][15][16]. The main emphasis of these researches has focused on the effect of modifier on properties of composites, but the microscopic mechanism of modification methods at the molecular and atomic scale was rarely studied.…”

Section: Introductionmentioning

confidence: 99%

Effects of amino silicone oil modification on properties of ramie fiber and ramie fiber/polypropylene composites

Chen

et al. 2015

Materials & Design

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Influence of coupling agent content on the properties of high density polyethylene composites reinforced with oil palm fibers

Cited by 80 publications

References 24 publications

Polypropylene/hemp woody core fiber composites: Morphology, mechanical, thermal properties, and water absorption behaviors

Polypropylene/hemp woody core fiber composites: Morphology, mechanical, thermal properties, and water absorption behaviors

Hybrid composites based on polyethylene and coir/oil palm fibers

Effects of amino silicone oil modification on properties of ramie fiber and ramie fiber/polypropylene composites

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