The effect of loading rates and particle geometry on compressive properties of polypropylene/zinc oxide nanocomposites: Experimental and numerical prediction

Omar, Mohd Firdaus; Akil, Hazizan Md; Ahmad, Zainal Arifin; Mahmud, Shahrom

doi:10.1002/pc.21253

Cited by 16 publications

(12 citation statements)

References 40 publications

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“…The importance of nano‐filler shape and size on polymer dynamics has been investigated by molecular modeling . However, very few works experimentally considered such effect and there are still issues needed to be investigated.…”

Section: Introductionmentioning

confidence: 99%

Effect of Particle Size and Shape on the Reinforcing Efficiency of Nanoparticles in Polymer Nanocomposites

Hassanabadi

Rodrigue

2014

Macro Materials & Eng

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The effect of particle characteristics such as size and shape on the reinforcing efficiency of nano‐particles is investigated. Nanocomposites based on ethylene vinyl acetate (EVA) copolymer containing five different nano‐particles including clay, multiwall carbon nanotube (CNT), CaCO3, talc, and nano‐crystalline cellulose (NCC) were produced. The analyses are performed in the melt and solid states. The highest property changes were obtained for clay and CNT, followed by talc, NCC, and CaCO3. By using morphological analyses, mechanical properties, and rheological data, the results were correlated to the amount of available surface area between the particles and polymer. Finally, the particles were compared using a material cost over mechanical performance ratio where the optimum was obtained for talc followed by clay, NCC, CNT and CaCO3.

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Section: Introductionmentioning

confidence: 99%

Effect of Particle Size and Shape on the Reinforcing Efficiency of Nanoparticles in Polymer Nanocomposites

Hassanabadi

Rodrigue

2014

Macro Materials & Eng

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“…It is well known that inorganic filler can improve mechanical and wear behavior of polymer materials. Zinc oxide (ZnO), with its outstanding mechanical properties , antibacterial properties , electrical and thermal conductivity, is a highly potential candidate to be used as reinforcing filler in polymer composites. The ZnO filler as an antibacterial agent in polymer composite is certainly very promising.…”

Section: Introductionmentioning

confidence: 99%

Abrasive wear performance and antibacterial assessment of untreated and treated ZnO-reinforced polymer composite

et al. 2013

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In this work, the response of different filler loading of zinc oxide (ZnO) reinforced ultra‐high‐molecular‐weight polyethylene (UHMWPE) on mechanical, abrasive wear, and antibacterial properties were studied. Two variants of untreated ZnO‐reinforced UHMWPE (U‐ZPE) and treated ZnO‐reinforced UHMWPE (T‐ZPE) with aminoproplytriethoxysilane (APTES) were used to compare the improvement of the mechanical, abrasive wear, and antibacterial properties. The abrasive wear and friction behaviors were monitored using a pin‐on‐disc (POD) test rig with different applied loads and sliding speeds against 400‐grit size of silicon carbide (SiC) abrasive paper under dry sliding conditions. The antibacterial assessments of the composites were tested against two common human body bacteria, that is, Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Results have shown that T‐ZPE possess higher ultimate tensile strength and elongation at break values as compared to U‐ZPE. Furthermore, the T‐ZPE have higher wear resistance compared to U‐ZPE and pure UHMWPE. The average coefficient of friction (COF) of UHMWPE was not significantly affected by the addition of both untreated and treated ZnO filler. The wear mechanisms were studied under scanning electron microscopy (SEM). Both U‐ZPE and T‐ZPE composites showed active inhibition against E. coli and S. aureus bacteria. POLYM. COMPOS., 34:1020–1032, 2013. © 2013 Society of Plastics Engineers

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“…"Sawdust polyethylene composites," BioResources 11(3), 6489-6504. 6492 The stress (σ), strain (ɛ), and strain rate (έ) of the specimen were determined with the following equations (Omar et al 2012):…”

Section: Dynamic Testmentioning

confidence: 99%

Effect of Particle Size on Mechanical Properties of Sawdust-High Density Polyethylene Composites under Various Strain Rates

Jaya¹,

Omar²,

Akil³

et al. 2016

BioResources

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There is a need to understand the effect of wood particle size, as it affects the characteristics of wood-based composites. This study considers the effect of wood particle size relative to the dynamic behavior of wood composites. The compression Split Hopkinson Pressure Bar (SHPB) was introduced to execute dynamic compression testing at the strain rate of 650 s , whereas a conventional universal testing machine (UTM) was used to perform static compression testing at the strain rate of 0.1 s , and 0.001 s -1 for four different particle sizes (63 µm, 125 µm, 250 µm, and 500 µm). The results showed that mechanical properties of composites were positively affected by the particle sizes, where the smallest particle size gave the highest values compared to the others. Moreover, the particle size also affected the rate sensitivity and the thermal activation volume of sawdust/HDPE, where smaller particles resulted in lower rate sensitivity. For the post-damage analysis, the applied strain rates influenced deformation behavior differently for all particle sizes of the specimens. In a fractographic analysis under dynamic loading, the composites with large particles experienced severe catastrophic deformation and damages compared to the smaller particles.

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The effect of loading rates and particle geometry on compressive properties of polypropylene/zinc oxide nanocomposites: Experimental and numerical prediction

Cited by 16 publications

References 40 publications

Effect of Particle Size and Shape on the Reinforcing Efficiency of Nanoparticles in Polymer Nanocomposites

Effect of Particle Size and Shape on the Reinforcing Efficiency of Nanoparticles in Polymer Nanocomposites

Abrasive wear performance and antibacterial assessment of untreated and treated ZnO-reinforced polymer composite

Effect of Particle Size on Mechanical Properties of Sawdust-High Density Polyethylene Composites under Various Strain Rates

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