Impact Toughness of Kenaf Powder, Polypropylene and Kevlar

Kamardin, Nur Kamarliah; Taib, Y. M.; Kalam, Anizah

doi:10.4028/www.scientific.net/amm.393.152

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…From the TEM analysis, it was observed that AMUF was finely dispersed in the PP matrix with a fibroid morphology [Figure (a)], however, unmodified MUF exhibited agglomeration in the PP matrix [Figure (b)]. The impact and modulus value of the PP‐AMUF nanocomposite has been compared with different types of the PP nanocomposites and presented in Table . As expected, the property values for each nanocomposite differed from others due to a variety of factors such as preparation methods, type of nanofillers, interfacial adhesion, filler fraction, filler dimensions, test conditions, etc.…”

Section: Resultsmentioning

confidence: 97%

Crystallization, mechanical, and fracture behavior of mullite fiber‐reinforced polypropylene nanocomposites

Vengatesan¹,

Singh²,

Pillai³

et al. 2016

J of Applied Polymer Sci

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This study describes the reinforcement effect of surface modified mullite fibers on the crystallization, thermal stability, and mechanical properties of polypropylene (PP). The nanocomposites were developed using polypropylene-grafted-maleic anhydride (PP-g-MA) as compatibilizer with different weight ratios (0.5, 1.0, 1.5, 2.5, 5.0, and 10.0 wt %) of amine functionalized mullite fibers (AMUF) via solution blending method. Chemical grafting of AMUF with PP-g-MA resulted in enhanced filler dispersion in the polymer as well as effective filler-polymer interactions. The dispersion of nanofiller in the polymer matrix was identified using scanning electron microscopy (SEM) elemental mapping and transmission electron microscopy (TEM) analysis. AMUF increased the Young's modulus of PP in the nanocomposites up to a 5 wt % filler content, however, at 10 wt % loading, a decrease in the modulus resulted due to agglomeration of AMUF. The impact strength of PP increased simultaneously with the modulus as a function of AMUF content (up to 5 wt %). The mechanical properties of PP-AMUF nanocomposites exhibited improved thermal performance as compared to pure PP matrix, thus, confirming the overall potential of the generated composites for a variety of structural applications. The mechanical properties of 5 wt % of AMUF filled PP nanocomposite were also compared with PP nanocomposites generated with unmodified MUF and the results confirmed superior mechanical properties on incorporation of modified filler. V C 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43725.

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Section: Resultsmentioning

confidence: 97%

Crystallization, mechanical, and fracture behavior of mullite fiber‐reinforced polypropylene nanocomposites

Vengatesan¹,

Singh²,

Pillai³

et al. 2016

J of Applied Polymer Sci

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“…It can accordingly be concluded that the addition of a small amount (2-3%) of Kevlar fibres can be used as a reinforcement to improve the strength and toughness of the hybrid. In another study, Kamardin et al [12] have investigated the mechanical performance of hybrid Kevlar/kenaf powder reinforced polypropylene composites, in 20 to 40% weight ratio of kenaf powder. It was observed that hybridization effects provided improved mechanical properties for this hybrid structure.…”

Section: Introductionmentioning

confidence: 99%

“…In another study, Kamardin et al. [12] have investigated the mechanical performance of hybrid Kevlar/kenaf powder reinforced polypropylene composites, in 20 to 40% weight ratio of kenaf powder. It was observed that hybridization effects provided improved mechanical properties for this hybrid structure.…”

Section: Introductionmentioning

confidence: 99%

The influence of kenaf contents and stacking sequence on drop-weight impact properties of hybrid laminated composites reinforced polyvinyl butyral composites

Salman

2020

Journal of Industrial Textiles

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For the high cost of aramid fibres and the necessity for finding alternatives which are environmentally friendly, a portion of aramid was substituted by woven kenaf at various sequences and thicknesses, to identify the proper arrangement for producing helmet shell. Drop-weight impact tests were conducted on different configurations of 19 layers of kenaf and aramid reinforced polyvinyl butyral film, which were fabricated by the hot press method. Effects of fibre content, layering sequence and energy absorption of the laminated composites were studied at three different impact energies 50, 75, 100 J. Results suggested that the behaviour of hybrid laminates has a positive effect in terms of energy absorbed and impact resistance, due to lower failure strain of kenaf fibres. Additionally, placing woven kenaf layers alternate with aramid layers provides higher impact loads and absorbed energy than placing woven kenaf and aramid separately, especially at impact level 100 J. For example, the absorbed energy of the 17 Aramid/2 Kenaf Alt. (H1A) is 72.99 J, while for 17 Aramid/2 Kenaf (H1) is 66.04 J. The closed curves indicated the success of the samples in absorbing the dissipated energy at various impact energies values. It could be deduced that it is possible to replace the aramid fibre in various composites industries by kenaf fibre, to minimize harmful environmental effects and cost of petroleum products.

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