Polymer nanocomposites with nanorods having different length distributions

Sapkota, Janak; Shirole, Anuja; Foster, E. Johan; García, Jaime; Lattuada, Marco; Weder, Christoph

doi:10.1016/j.polymer.2016.12.010

Cited by 41 publications

(44 citation statements)

References 73 publications

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“…Moreover, the displacement pattern of the short nanorods in the mixed systems is almost as slow as the long nanorods, which clearly suggest that the short nanorods are impregnated within the network of long nanorods. Such mixtures with different length distribution seemed to form a mixed percolating structure resulting from better overall dispersion of the nanorods, on account of the kinetic effects …”

Section: Resultsmentioning

confidence: 99%

“…80) and low aspect ratio (cCNC, A = ca. 11) were isolated using sulfuric acid hydrolysis from tunicates (tCNCs) and cotton (cCNCs), respectively, using previously established protocols . tCNCs and cCNCs were labeled with rhodamine B‐isothiocyanate and fluorescein isothiocyanate, respectively, adapting an earlier protocol .…”

Section: Methodsmentioning

confidence: 99%

“…In spite of all these developments, this aspect has received little attention when it comes to analyzing the properties of composite materials containing elongated nanofillers with a broad distribution of lengths . Indeed, in many experimental studies the nanorod size distribution is neglected and averaged length, diameter, and aspect ratio values are used to describe and analyze the materials with common micromechanical theories .…”

Section: Introductionmentioning

confidence: 99%

“…who used the percolation concept in connection with the parallel series model by Takayanagi et al . In order to describe and predict the mechanical properties of multifiller composites, we recently implemented this framework to account for two different types of nanorods having different length distributions . So far, we demonstrated a preliminary numerical evaluation of the extended model for a specific 1:1 binary mixture.…”

Section: Introductionmentioning

confidence: 99%

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A refined model for the mechanical properties of polymer composites with nanorods having different length distributions

Sapkota

Gooneie

Shirole

et al. 2017

J of Applied Polymer Sci

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The aspect ratio of rod‐like nanofillers is an important factor that governs their percolation threshold in nanocomposites with a polymer of interest. Controlling the length distribution of a filler is an effective way to manipulate the onset of network formation and thereby materials properties that are related to the latter. The use of two or more different filler types with dissimilar aspect ratio is a special case to achieve such control. We here report the modification of an existing mechanical model to describe the mechanical properties of polymer nanocomposites with a binary length distribution of nanofillers. The model was exemplarily applied to materials comprised of two nanorod types having high and low aspect ratio, respectively, and used to explain why the properties of such nanocomposites are strongly weighted by the nanorod type characterized by a higher aspect ratio and stiffness. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45279.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A refined model for the mechanical properties of polymer composites with nanorods having different length distributions

Sapkota

Gooneie

Shirole

et al. 2017

J of Applied Polymer Sci

Self Cite

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“…The development of polymer/layered silicate nanocomposites have been profoundly researched in last decade due to the superior property improvement as compared to the homopolymer. One of the major advantages is to improve the mechanical properties because the combination between the large surface area of the clay and the polymer matrix facilitates the stress transfer to the reinforcing phase, resulting in the improvement of tensile strength and toughness . The other one is to enhance the barrier properties, resulting from a creation of tortuous pathway making a permeant molecule take more time to permeate the polymer including impermeable clay layers …”

Section: Introductionmentioning

confidence: 99%

The addition effect of hollow glass microsphere on the dispersion behavior and physical properties of polypropylene/clay nanocomposites

Jung

Kang

Cheon

et al. 2018

J of Applied Polymer Sci

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Polypropylene (PP) nanocomposites have been widely researched for last decade due to its high mechanical property and multiple usages in various industrial fields from automobile to consumer packaging. Dispersion of nanoclay in polyethylene and PP is the key factor due to their hydrophobic property. Adding surfactant or introducing a polymer with a functional group, and modifying a natural clay with organic ions have been tried to achieve the better dispersion of clay in polymer matrix. In this study, the PP/clay nanocomposite with maleic anhydride grafted PP and hollow glass microspheres (HGMs) at various compositions were prepared and characterized. The addition of HGMs to PP/clay nanocomposites significantly improved the tensile stress at yield point except 7 wt % of HGMs. It is assumed that this could be due to not only the reinforcing effect of HGMs in PP, but the crushing effect of HGMs on the clay resulting in interlayer increase of clay as well. The barrier properties was also found to be improved about 32% max resulting from the better dispersion and presence of HGMs. It could be assumed that the HGMs could act as a ball creating a ball milling crush force to achieve the better dispersion of clay in the polymer and improve nanocomposite performance. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47476.

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