Effects of Particle Size and Coupling Agent Concentration on Mechanical Properties of Particulate-filled Polymer Composites

Nourbakhsh, Amir; Karegarfard, Abolfazl; Ashori, Alireza; Nourbakhsh, A

doi:10.1177/0892705709340962

Cited by 103 publications

(82 citation statements)

References 16 publications

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“…As can be seen, the tensile modulus is not significantly affected by particle size in the range studied; similar results have been reported by Nourbakhsh et al [25], but the tensile strength is affected by particle size. For larger particle size, there is a moderate increase in strength.…”

Section: Tensile Propertiessupporting

confidence: 90%

“…In contrast, Chen et al [24] investigated the effect of wood particle size on wood= HDPE composites and found that plastic composites made of larger wood particles had higher strength. Nourbakhsh et al [25] discussed the effect of wood particle size on wood-flour=PP composites and found that the tensile modulus was not significantly affected by particle size, the tensile strength increased, and the notched izod decreased with decreasing particle size.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Coupling Agent Concentration, Fiber Content, and Size on Mechanical Properties of Wood/HDPE Composites

2012

International Journal of Polymeric Materials

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In this study, the influence of coupling agent concentration (0 and 3 wt%), wood fiber content (50, 60, 70, and 80 wt%), and size (40-60, 80-100, and 160-180 mesh) on the mechanical properties of wood=high-density-polyethylene (HDPE) composites (WPCs) was investigated. WPC samples were prepared with poplar wood-flour, HDPE, and polyethylene maleic anhydride copolymer (MAPE) as coupling agent. It was found that the tensile properties and the flexural properties of the composites were improved by the addition of 3 wt% MAPE, and the improved interfacial adhesion was well confirmed by SEM micrographs. It was also observed that the best mechanical properties of wood= HDPE composites can be reached with larger particle size in the range studied, while too-small particle size was adverse for the mechanical properties of wood=HDPE composites. Moreover, the tensile modulus, tensile strength, and flexural strength of WPCs decreased with the increase in fiber content from 50 to 80 wt%; the flexural modulus of WPCs increased with the increase in fiber content from 50 to 70 wt% and then decreased as the fiber content reached 80 wt%. The variances in property performance are helpful for the end-user to choose an appropriate coupling agent (MAPE) concentration, wood fiber content, and particle size based on performance needs and cost considerations.

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Section: Tensile Propertiessupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Effect of Coupling Agent Concentration, Fiber Content, and Size on Mechanical Properties of Wood/HDPE Composites

2012

International Journal of Polymeric Materials

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“…In this study the findings of present study are in line with the findings of Lai et al (2005), where it was claimed that the reason of such a phenomenon is because of the effect of fewer intersections between the polymer and filler, while some researchers claim that the enhancement of the tensile strength during a reduction of flour size occurs because of the increase of contact surfaces (Nourbakhsh et al 2010). …”

Section: Tensile Strengthsupporting

confidence: 90%

The Effect of using the Flour of Kiwi (Actinidia sp.) Twigs and Refined Fibers in the Production of Polypropylene/Wood Plastic Composites

Hosseinzadeh

2017

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This study uses a combination of wood flour, obtained from kiwi twigs, together with refined fibers and polypropylene material to make a hybrid composite of polypropylene/wood/fiber. The materials were mixed in a twin-screw extruder, and the samples were made via an injection molding method. The tensile, flexural, and impact strengths, as well as the physical characteristics were measured based on ASTM standards. The results indicated that when the flour dimensions were reduced from 20 mesh to 40 mesh, the tensile and flexural strength, tensile and flexural modulus, and elongation at break were reduced. The notched impact strength, water absorption, and thickness swelling during 2 h and 24 h of immersion in water, and the water absorption and thickness swelling during 2 h immersion in boiling water, increased. In addition, by increasing the amount of refined fiber instead of kiwi wood flour, the tensile and flexural strength, tensile and flexural modulus, elongation at break, and the notched impact strength were increased. The water absorption and thickness swelling during 24 h of immersion in water and the water absorption and thickness swelling during 2 h immersion in boiling water were decreased.

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“…However, the effect of nanographene on thermal stability depends on the type of polymer and processing conditions; nanographene in higher temperature ranges also increases the thermal stability (Nourbakhsh et al 2010). The most important effect of nanographene on the thermal stability is the formation of a non-burning coal-like layer.…”

Section: Effect Of Nanographene On Thermal Propertiesmentioning

confidence: 99%

Effect of Nanographene on Physical, Mechanical, and Thermal Properties and Morphology of Nanocomposite Made of Recycled High Density Polyethylene and Wood Flour

Beigloo¹,

Eslam²,

Hemmasi³

et al. 2017

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The effects of the amount of nanographene on physical, mechanical, and thermal properties and morphology of the wood-plastic composites were investigated. This wood-plastic was made using recycled high density polyethylene (HDPE), nanographene, and wood flour. Four weight levels, 0, 0.5, 1.5, or 2.5 wt.% of nanographene, were combined with 70% polymeric matrix and 30% lignocellulosic material with an internal mixer. The results showed that by increasing the amount of nanographene up to 0.5% by weight, the flexural strength, flexural modulus, and notched impact strength of the composite increased. After adding 2.5 wt.% nanographene, these properties were reduced. By increasing the amount of nanographene, both the amount of residual ash and the thermal stability increased. Study of the images from scanning electron microscope (SEM) showed that the samples containing 0.5% of nanographene had less pores and were smoother than other samples.

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Effects of Particle Size and Coupling Agent Concentration on Mechanical Properties of Particulate-filled Polymer Composites

Cited by 103 publications

References 16 publications

Effect of Coupling Agent Concentration, Fiber Content, and Size on Mechanical Properties of Wood/HDPE Composites

Effect of Coupling Agent Concentration, Fiber Content, and Size on Mechanical Properties of Wood/HDPE Composites

The Effect of using the Flour of Kiwi (Actinidia sp.) Twigs and Refined Fibers in the Production of Polypropylene/Wood Plastic Composites

Effect of Nanographene on Physical, Mechanical, and Thermal Properties and Morphology of Nanocomposite Made of Recycled High Density Polyethylene and Wood Flour

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