Effect of Water Absorption on the Mechanical Properties of Pultruded Kenaf Fibre Reinforced Polyester Composites

Nosbi, Norlin; Akil, Hazizan Md; Ishak, Z. A. Mohd; Bakar, Abu

doi:10.1177/096369351102000103

Cited by 12 publications

(14 citation statements)

References 16 publications

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“…However, it is obvious that the compatibilizing rHDPE/rPET with E‐GMA has been improved the elongation of the blend and their composites filled with RHF. This showed the recovery of elongation to break by 14%–85%, due to better adhesion between HDPE and PET phases . The enhanced compatibility of HDPE and PET plays a significant role in improving the elongation of PB matrices as well as their composites …”

Section: Resultsmentioning

confidence: 92%

“…In order to improve the water resistance of NFPCs, coupling agents such as maleic anhydride polypropylene (MAPP) and maleic anhydride polyethylene (MAPE), compatibilizers, or other surface treatment of fibers such as silane . As reported in previous studies, WA test has been subjected in distilled water, tap water, seawater, and acidic water to explore other possible applications of NFPCs in various environment conditions.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical, water absorption, and morphology of recycled polymer blend rice husk flour biocomposites

Chen

Ghani

Salleh

et al. 2014

J of Applied Polymer Sci

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Rice husk flour (RHF) biocomposites based on uncompatibilized and compatibilized recycled high density polyethylene/recycled polyethylene terephthalate (rHDPE/rPET) with ethylene‐glycidyl methacrylate (E‐GMA) copolymer were prepared through a two‐step extrusion and hot pressing with fiber loadings of 40, 60, and 80 wt %. Results showed that tensile and flexural properties increased. However, the elongation to break and impact strength decreased as the RHF loading increased. Compatibilizing polymer blend matrices can further enhance the mechanical properties. Water absorption (WA) test were examined in distilled and seawater. It is interesting to note that for composites made from uncompatibilized matrix, the calculated D and KSR were lower in seawater, but for the compatibilized matrix composites, the D and KSR obtained were generally lower in distilled water. However, compatibilization of rHDPE/rPET has been markedly reduced the WA and thickness swelling. Scanning electron microscope analysis of the compatibilized matrix composites confirmed the improved interfacial bonding of matrix–matrix and filler–matrix phases. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41494.

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Section: Resultsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Mechanical, water absorption, and morphology of recycled polymer blend rice husk flour biocomposites

Chen

Ghani

Salleh

et al. 2014

J of Applied Polymer Sci

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“…The greater amount of fibre area exposed to the surrounding, the higher the tendency of absorbing water. However, the molecular and microstructure aspects such as polarity, the extent of crystallinity of polymers and the presence of residual hardeners or other water attracting species may also effect the moisture diffusion [16].…”

Section: Figurementioning

confidence: 99%

“…It is assumed that the stress transfer between fibre and matrix interface is less effective due to the presence of moisture. Besides, moisture also causes the formation of hydrogen bonding between the cellulose fibre and water molecules [16].…”

Section: Figurementioning

confidence: 99%

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The effects of natural weathering exposure on the properties of pultruded natural fibre reinforced unsaturated polyester composites

Affzan¹,

Akil²,

Ishak³

et al. 2015

Natural Filler and Fibre Composites

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Due to the demand for green technology, the extensive use of fibre reinforced composites has built-up an interest in finding out new and reliable composites. The natural fibre reinforced composites produced by the pultrusion technique may eventually replace the conventional fibre composite production technique used today. Considering outdoor applications, experiments were performed to study the effects of weathering exposure on pultruded natural fibre reinforced composites. Kenaf fibre reinforced composites were produced using the pultrusion technique at 70% fibre loading. The composites were then subjected to natural aging, which involved exposing specimens to an outdoor natural environment for a period of time. After a few weeks, the specimen showed some degradation and discolouring. Subsequently, compression and flexural tests were performed with the aim of determining the mechanical properties after exposure. The decrease in the value of these properties was verified and discussed. The repeated process of sun-heating and the invasion of moisture from natural atmosphere such as rain and dew everyday had led to debonding and weakening over the fibre-matrix interfaces of the composite.

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Effects of fungal decay on properties of mechanical, chemical, and water absorption of wood plastic composites

Feng

Peng

et al. 2020

J of Applied Polymer Sci

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This study investigated the associations between wood species and fungal resistance, as well as the effects of fungal decay on the properties of mechanical, chemical, and water absorption of wood polypropylene composites (WPCs) filled with white poplar, moso-bamboo, Chinese fir, Ramin, white pine, and rubber wood. Experimental results on weight losses and surface morphology both showed that fungal resistance of WPCs varied significantly with wood fiber species. Chinese fir and rubber wood filled composites separately presented the most and least durability against Coriolus versicolor (white rot) and Poria placenta (brown rot). In addition, fungal decay produced great differences in the properties of mechanical, chemical, and water absorptions between non-decayed and decayed composites. The decayed composites showed lower MOR, tensile strength, and impact strength, as well as higher MOE and water absorptions compared with non-decayed samples. These findings suggest that fungal decay could bring out dramatic influences on various properties of WPCs.

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Effect of Water Absorption on the Mechanical Properties of Pultruded Kenaf Fibre Reinforced Polyester Composites

Cited by 12 publications

References 16 publications

Mechanical, water absorption, and morphology of recycled polymer blend rice husk flour biocomposites

Mechanical, water absorption, and morphology of recycled polymer blend rice husk flour biocomposites

The effects of natural weathering exposure on the properties of pultruded natural fibre reinforced unsaturated polyester composites

Effects of fungal decay on properties of mechanical, chemical, and water absorption of wood plastic composites

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