Characterisation of wood plastic composite manufactured from kenaf fibre reinforced recycled-unused plastic blend

Taufiq, M.J.; Mansor, Muhd Ridzuan; Mustafa, Zaleha

doi:10.1016/j.compstruct.2018.01.090

Cited by 57 publications

(36 citation statements)

References 22 publications

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“…Meanwhile, θ in this study was standardised as 40°, based on the micrograph image of the composite materials, due to the inconsistent rotation of the fillers (Figure 1). This phenomenon arose from the breakage of the fillers, during the mixing process [28,29]. Hence, the simplified model showed the conductivity of the overall composite material, which consisted of primary filler and secondary fillers, as in Equation (3):σc=[4π(dcd)(ld)(cos2θ)(φoverallQσfαX)] The electrical conductivity of the composite material, containing three different fillers using the specific manufacturing processes, was determined.…”

Section: Prediction Of Electrical Conductivity By Mathematical Modelmentioning

confidence: 99%

Electrical Conductivity Performance of Predicted Modified Fibre Contact Model for Multi-Filler Polymer Composite

et al. 2019

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Polymer composites have been extensively fabricated given that they are well-fitted for a variety of applications, especially concerning their mechanical properties. However, inadequate outcomes, mainly regarding their electrical performance, have limited their significant potential. Hence, this study proposed the use of multiple fillers, with different geometries, in order to improve the electrical conductivity of a polymer composite. The fabricated composite was mixed, using the ball milling method, before being compressed by a hot press machine at 3 MPa for 10 min. The composite plate was then measured for both its in-plane and through-plane conductivities, which were 3.3 S/cm, and 0.79 S/cm, respectively. Furthermore, the experimental data were then verified using a predicted electrical conductivity model, known as a modified fibre contact model, which considered the manufacturing process, including the shear rate and flow rate. The study indicated that the predicted model had a significant trend and value, compared to the experimental model (0.65 S/cm for sample S1). The resultant fabricated composite materials were found to possess an excellent network formation, and good electrical conductivity for bipolar plate application, when applying compression pressure of 3 MPa for 10 min.

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Section: Prediction Of Electrical Conductivity By Mathematical Modelmentioning

confidence: 99%

Electrical Conductivity Performance of Predicted Modified Fibre Contact Model for Multi-Filler Polymer Composite

et al. 2019

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“…Theoretically, the aligned fibers that were perpendicular to the applied load required higher loading before the composite structure began to fail [ 30 , 31 ]. In contrast, the aligned fibers that were parallel showed a lower applied load resulting in fiber breakage [ 30 , 32 ]. This can easily be seen in Figure 1 c,d, in which the failures obviously occurred and propagated along the kenaf fibers at orientation angles of 45° and 90°.…”

Section: Resultsmentioning

confidence: 99%

Effects of High-Temperature Exposure on the Mechanical Properties of Kenaf Composites

et al. 2020

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Automotive parts, including dashboards and trunk covers, are now fabricated through a compression-molding process in order to produce lightweight products and optimize fuel consumption. However, their mechanical strength is not compromised to avoid safety issues. Therefore, this study investigates kenaf-fiber-reinforced polypropylene composites using a simple combing approach to unidirectionally align kenaf fibers at 0°. The kenaf composite was found to withstand a maximal temperature of 120 °C. The tensile and flexural strengths of the aligned kenaf composites (50 and 90 MPa, respectively) were three times higher than those of the commercialized Product T (between 39 and 30.5 MPa, respectively) at a temperature range of 90 to 120 °C. These findings clearly showed that the mechanical properties of aligned kenaf fibers fabricated through the combing technique were able to withstand high operating temperatures (120 °C), and could be used as an alternative to other commercial natural-fiber products.

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“…The thermal property of individual low conductivity kenaf fibres proves that a reduction in 16% of the effective thermal conductivity of the composite [3]. The addition of kenaf fibres reduces the degree of crystallinity of the recycled polypropylene/polyethylene sourced from rejected-unused diapers whose plastic and absorbent gel were separated [4]. The tensile strength and flexural strength of kenaf fibre were improved considerably when reinforced with vinyl ester, epoxy and polyurethane matrixes [5].…”

Section: Introductionmentioning

confidence: 95%

Study of Hexagonal Boron Nitride Particulate as Vibration Behaviour Modifier of Alternate Stacked Glass–Natural Fibre Polymer Composite Laminate

Rajkumar

Selvaraj

2020

Lecture Notes in Mechanical Engineering

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The vibration behaviour of polymers can be modified by the particulates and natural fibres which are interesting study to the design engineers. A study has been carried out to investigate the tensile, flexural and vibrational behaviour of vinyl ester composites reinforcing with woven kenaf and glass fibres. Vibration behaviour of composite was further enhanced by the addition of hexagonal boron nitride (2&4% hBN) particles. The fibres were chemically treated to improve its adhesion to matrix. The tensile strength of fabricated composites was marginally reduced with increase in hBN particles. The vibration behaviours of composite were studied by electro-dynamic shaker. The experimental results were clearly showed that natural frequency of composite decreases with increasing particulate content. The hBN particles inclusion in the treated kenaf laminate has increased damping ratio by dissipating by more local vibration energy. This is due to combined effect of chemical treatment of fibre and local relaxing behaviour of secondary hBN particles. The two fold increase in damping ratio obtained by adding four times of hBN particle. Dynamic mechanical tests proved that hBN, a secondary particle, is improving vibration damping characteristics. Hence, it potentially benefits the composite as an engineered material.

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Characterisation of wood plastic composite manufactured from kenaf fibre reinforced recycled-unused plastic blend

Cited by 57 publications

References 22 publications

Electrical Conductivity Performance of Predicted Modified Fibre Contact Model for Multi-Filler Polymer Composite

Electrical Conductivity Performance of Predicted Modified Fibre Contact Model for Multi-Filler Polymer Composite

Effects of High-Temperature Exposure on the Mechanical Properties of Kenaf Composites

Study of Hexagonal Boron Nitride Particulate as Vibration Behaviour Modifier of Alternate Stacked Glass–Natural Fibre Polymer Composite Laminate

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