Raw natural fiber reinforced polystyrene composites: Effect of fiber size and loading

Zafar, Mohd Farhan; Siddiqui, M. Arif

doi:10.1016/j.matpr.2017.12.190

Cited by 15 publications

(5 citation statements)

References 9 publications

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“…The probability of failure is a function of stress, σ as, Theoretically, composite samples should have gained higher strengths by incorporating a higher amount of filler. However, up to a certain composition of filler loading, mechanical properties tends to decrease due to lack of effective adhesion between the filler and epoxy [14,15]. With the increase in filler loading, particle began to agglomerate and thus limited the effective stress transfer between the filler and matrix and detoriate-associated mechanical properties.…”

Section: Weibull Analysismentioning

confidence: 99%

Strain Rate Sensitivity of Epoxy Composites Reinforced with Varied Sizes of Bagasse Particles

et al. 2020

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Viscoelastic materials, such as natural fibre-reinforced polymer composites, are strain rate sensitive. In the present investigation, the low strain rate sensitivity (0.00028 s−1, 0.00085 s−1 and 0.0017 s−1) of different sized bagasse particle-reinforced (212 µm and 300 µm) epoxy composites was examined using the Weibull analysis method. The filler loading content was optimized at 2 wt.% to achieve better mechanical properties. Based on the experimental results, it was observed that composites with 212 µm filler particles had higher characteristic strengths, more consistent failure strengths and higher energy absorption properties with higher loading speeds, compared to that of 300 µm filler particles. Based on the mathematical models for particle–matrix interactions, improvements in mechanical properties are attributed to proper filler dispersion and a better fibre–matrix interfacial strength.

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Section: Weibull Analysismentioning

confidence: 99%

Strain Rate Sensitivity of Epoxy Composites Reinforced with Varied Sizes of Bagasse Particles

et al. 2020

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“…Hydroxyl and polar groups make natural raw fibers incompatible with polymers, so they need surface modifiers or coupling agents 12 . On the other hand, various thermoplastic polymers can be used as a matrix for natural fiber reinforced‐polymer composites, such as polyethylene (PE), polypropylene (PP), polyamides (PA), poly (lactic acid) (PLA), and polystyrene (PS) 3–5,17–20 …”

Section: Introductionmentioning

confidence: 99%

Extraction of natural fibers of Catole coconut (Syagrus Cearensis): Application as reinforcing filler in polypropylene‐based composites

et al. 2023

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Polypropylene/Syagrus Cearensis fiber composites compatibilized with polypropylene‐graft‐maleic anhydride (PP‐g‐MA) and styrene(ethylene‐butylene)‐styrene copolymer (SEBS‐g‐MA) were successfully produced using a co‐rotating twin‐screw extruder followed by injection molding. The composites were characterized by X‐ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The mechanical properties were determined by Izod impact and tensile testing. Thermal properties were obtained by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC). Heat deflection temperature (HDT) was determined to study the thermomechanical properties of the composites. XRD and DSC indicated the presence of two polypropylene polymorphs: α and β. The unmodified PP/Fiber composites showed an incompatible behavior, presenting low fiber/matrix interaction and poor interfacial adhesion. The poor compatibility led to low elongation at break and impact strength but high tensile strength. PP‐g‐MA coupling agent promoted some adhesion to the PP/fiber interfaces but not enough to improve the impact strength. The composites with PP‐g‐MA exhibited improved tensile modulus and strength. The enhanced PP/fiber interfacial interaction promoted by SEBS‐g‐MA generated a better interplay of mechanical properties, improving impact strength and elongation at break while preserving the elastic modulus and tensile strength. In general, the fibers enhanced the thermomechanical stability of PP, as evidenced by higher HDT values.

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“…In addition, this paper observed that the wettability problem could be resolved by using silane as a coupling agent. This approach can improve the natural fibre and polymer matrix's interlocking adherence [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Fibre Size on Mechanical Properties and Surface Roughness of PLA Composites by Using Fused Deposition Modelling (FDM)

Jamadi¹,

Razali²,

Malingam³

et al. 2023

Journal of Renewable Materials

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Natural fibre as a reinforcing agent has been widely used in many industrial applications. Nevertheless, several factors need to be considered, such as the size and weight percentage of the fibre used in binding. Using fused deposition modelling (FDM), this factor was investigated by varying the size of natural fibre as the responding variable with a fixed weight percentage of kenaf fibre. The process of modifying the natural fibre in terms of size might increase the dispersion of kenaf fibre in the polymer matrix and increase the adhesion bonding between the fibre and matrix of composites, subsequently improving the interfacial bonding between these two phases. In this paper, the effect of fibre size was evaluated by performing the mechanical test, Scanning Electron Micrograph (SEM) to observe the morphology of the composites, and also by surface analysis. The surface roughness was visualised using a 3D profilometer and the figure was illustrated as colour shading in the image. The composite with fibre size ≤100 μm displayed better tensile and flexural strength, compared to other sizes. In conclusion, by reducing the size of the fibre, the composites could develop high strength performance for industrial applications.

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Raw natural fiber reinforced polystyrene composites: Effect of fiber size and loading

Cited by 15 publications

References 9 publications

Strain Rate Sensitivity of Epoxy Composites Reinforced with Varied Sizes of Bagasse Particles

Strain Rate Sensitivity of Epoxy Composites Reinforced with Varied Sizes of Bagasse Particles

Extraction of natural fibers of Catole coconut (Syagrus Cearensis): Application as reinforcing filler in polypropylene‐based composites

Effect of Fibre Size on Mechanical Properties and Surface Roughness of PLA Composites by Using Fused Deposition Modelling (FDM)

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