An insight into mechanical properties of polymer nanocomposites reinforced with multidimensional filler system: A state of art review

Badgayan, Nitesh Dhar; Sahu, Santosh Kumar; Samanta, Sutanu; Sreekanth, P.S. Rama

doi:10.1016/j.matpr.2020.04.294

Cited by 18 publications

(9 citation statements)

References 64 publications

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“…Many researchers have reported the use of CNT and Gr as possible alternatives to improve the thermal and mechanical properties of polymer matrixes 19–22 . Paszkiewicz et al 23 showed that the addition of as little as 1.5 wt.% of multi‐walled nanotubes (MWCNTs) caused a shift of a maximum temperature of about 27°C toward higher temperatures when mixed with low‐density polyethylene (LDPE).…”

Section: Introductionmentioning

confidence: 99%

Development of poly (linear low‐density ethylene)/poly (ethylene‐methyl co‐acrylate) blends with enhanced thermal‐stability and toughening behavior with adding of carbonaceous fillers

Nunes

Garcia

Mélo

et al. 2023

J of Applied Polymer Sci

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In this work, polymer blend nanocomposites based on carbon fillers were produced via melt‐compounding in a twin‐screw extruder. A combination of several matrices (LLDPE, EMA, and LLDPE/EMA) and fillers (FLG, FWCNT, and FLG/FWCNT) was used. Thermal enhancement as the consequence of few‐walled carbon nanotube addition, led to significant improvements in the initial degradation temperatures of LLDPE (383.2 > 441.2°C), EMA (371.2 > 417.3°C), and LLDPE/EMA (390.55 > 430.62°C) matrixes, respectively. The evaluation of the dynamic‐mechanical behavior of the compositions showed an increase of 80% in the storage module for LLDPE‐based nanocomposites, a reduction of 30% for blend‐based nanocomposites, and a non‐change for EMA nanocomposites. Tenacity property was considerably improved, achieving a value 78% higher to the LLDPE/EMA blend, mainly due to the possible migration of the nanoparticles from EMA phase to the LLDPE phase, creating a more efficient physical network with well‐developed percolating structure, which facilitates the dissipation of energy during mechanical loading. In summary, it can be observed that the morphology control as well as the nanofillers location, proved to be extremely relevant factors to produce a polymer film with enormous gains in the thermal and mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Development of poly (linear low‐density ethylene)/poly (ethylene‐methyl co‐acrylate) blends with enhanced thermal‐stability and toughening behavior with adding of carbonaceous fillers

Nunes

Garcia

Mélo

et al. 2023

J of Applied Polymer Sci

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“…During the development of polymer‐based nanocomposites, several attempts were expended with a view to achieving a better dispersion of the nanofillers in polymer matrices, and these have also resulted in an enhancement of the physical and mechanical properties of the end products. [ 1 ] However, it still remains a formidable challenge to devise a cost‐effective method for controlling the degree of dispersion of the nanoparticles in polymeric hosts. This in turn has proved to be one of the greatest stumbling blocks in achieving large‐scale production and commercialization of polymer nanocomposites of interest.…”

Section: Introductionmentioning

confidence: 99%

“…The latter effect is evident during deposition, or mixing, of BN with the polymers, and can result in the deterioration of mechanical and/or physical properties of the end products. [ 1 ] Therefore, it is highly prudent to find an effective method for fabrication of exfoliated matrices with a better dispersion of BN, especially, at a larger scale.…”

Section: Introductionmentioning

confidence: 99%

A study of the mechanical performance of nanocomposites of polyethylene containing exfoliated boron nitride nanoplatelets

et al. 2022

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Boron nitride nanoplatelets (BNNPs) are emerging as a potential candidate for developing polymer-based thermally conducting nanocomposites that have electrically insulating properties. Generally, the mechanical performance of such polymer-based nanocomposites, for example, toughness, is often found to be inferior, primarily, owing to the poor dispersion of BNNP, resulting from weaker interfacial interactions between BNNPs and polymer matrices. Here, we report on a successful method to fabricate high density polyethylene (HDPE)/BNNP nanocomposites, with superior mechanical properties, through the in situ exfoliation of the nanofiller via a melt-extrusion technique. The results obtained showed that the toughness of a nanocomposite with 15 wt% BNNP loading is 18.8 Â 10 3 KJ m À3 , that is, about 1.5 times enhancement as compared to the control HDPE sample. The enhancement in mechanical properties can be attributed to a greater degree of homogeneous dispersion of the exfoliated BNNPs achieved using the melt-extrusion route. The results that were analyzed through scanning electron microscope and Fourier transform infrared measurements showed that an interesting microstructural feature, named "sunflower-like" core-shell structure, formed owing to the relatively stronger interactions between BNNPs and polyethylene chains, which in turn facilitated the uniform dispersion of exfoliated BNNPs in HDPE matrix. This work, therefore, opens up a pathway toward an easy and up-scalable version for fabricating polymer nanocomposites that have superior mechanical performance and with wider applicability.

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“…The advantages of cellular structures over composite materials include light weight, 5 high specific strength, damping ability, 6 and high impact strength. 7 Examples of cellular structures can be found in natural materials such as bamboo stem, bone, wood, and cork, 8 which contain different types of structural elements.…”

Section: Introductionmentioning

confidence: 99%

“…The advantages of cellular structures over composite materials include light weight, 5 high specific strength, damping ability, 6 and high impact strength. 7…”

Section: Introductionmentioning

confidence: 99%

Characterization of a chiral metamaterial depending on the type of connection between unit cells

Akhmetshin

Smolin

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The main focus in the development of metamaterials is on the design of multiscale structures, rather than on the chemical composition and properties of the base materials. In this work, a mechanical metamaterial is studied by mathematical modeling and computer simulations. A tetrachiral metamaterial structure is chosen due to its specific rotational behavior under uniaxial loading. Special attention is paid to the efficient use of the base material in the design of metamaterial samples. Two types of connection between unit cells in a macrobody are discussed: adjoining and overlapping. It is shown that a much less amount of the base material is used in 1D, 2D, and 3D samples consisting of overlapping cells. Numerical calculations of uniaxial loading of a system of two adjoining and overlapping cells showed that the adjoining cells act on each other, their contacting walls rotate in opposite directions due to chiral structure, and the sample is twisted. The overlapping cells have one common wall that rotates in one direction only, leading to a more pronounced twisting of the sample.

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An insight into mechanical properties of polymer nanocomposites reinforced with multidimensional filler system: A state of art review

Cited by 18 publications

References 64 publications

Development of poly (linear low‐density ethylene)/poly (ethylene‐methyl co‐acrylate) blends with enhanced thermal‐stability and toughening behavior with adding of carbonaceous fillers

Development of poly (linear low‐density ethylene)/poly (ethylene‐methyl co‐acrylate) blends with enhanced thermal‐stability and toughening behavior with adding of carbonaceous fillers

A study of the mechanical performance of nanocomposites of polyethylene containing exfoliated boron nitride nanoplatelets

Characterization of a chiral metamaterial depending on the type of connection between unit cells

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