Synthesis of nylon 6–clay hybrid by montmorillonite intercalated with ϵ‐caprolactam

Kojima, Yoshiyuki; Usuki, Arimitsu; Kawasumi, Masaya; Okada, Akane; Kurauchi, Toshio; Kamigaito, Osami

doi:10.1002/pola.1993.080310418

Cited by 913 publications

(584 citation statements)

References 5 publications

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“…Indeed increasing the interfacial properties increases the volume of polymer chains influenced. The improvement of the dispersion also increases the average aspect ratio of the nanofillers in the polymer matrix and as a consequence tensile properties are improved as already reported [31] for clay platelets. Here apparently, MWNTs are able to reinforce the PP matrix due to their large aspect ratio combined with high mechanical properties.…”

Section: Mechanical Characterizationsupporting

confidence: 58%

Multi-walled carbon nanotube filled polypropylene nanocomposites based on masterbatch route: Improvement of dispersion and mechanical properties through PP-g-MA addition

Prashantha¹,

Soulestin²,

Lacrampe³

et al. 2008

Express Polym. Lett.

192

137

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Abstract. Multi-wall carbon nanotubes (MWNTs) filled polypropylene (PP) nanocomposites were prepared through diluting a PP/MWNT masterbatch in a PP matrix by melt compounding with a twin screw extruder. Polypropylene grafted maleic anhydride (PP-g-MA) was used to promote the carbon nanotubes dispersion. The effect of PP-g-MA addition on the rheological, mechanical and morphological properties of the nanocomposites was assessed for different MWNTs loadings. Scanning electron microscopy (SEM) has shown that nanotubes are distributed reasonably uniformly. A better dispersion and good adhesion between the nanotubes and the PP matrix is caused by wrapping of PP-g-MA on MWNTs. When PP-g-MA is added, dynamic moduli and viscosity further increases compared to PP/MWNT nanocomposites. The rheological percolation threshold drops significantly. Tensile and flexural moduli and Charpy impact resistance of the nanocomposites also increases by the addition of PP-g-MA. The present study confirms that PP-g-MA is efficient to promote the dispersion of MWNTs in PP matrix and serves as an adhesive to increase their interfacial strength, hence greatly improving the rheological percolation threshold and mechanical properties of PP/MWNT nanocomposites.

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Section: Mechanical Characterizationsupporting

confidence: 58%

Multi-walled carbon nanotube filled polypropylene nanocomposites based on masterbatch route: Improvement of dispersion and mechanical properties through PP-g-MA addition

Prashantha¹,

Soulestin²,

Lacrampe³

et al. 2008

Express Polym. Lett.

192

137

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“…1 They demonstrated that nylon6/clay nanocomposites showed a significant improvement in mechanical and thermal properties. [2][3][4] Since then, much work has been dedicated to polymer nanocomposites. This work has revealed that these nanocomposites show remarkable material property enhancements, including mechanical properties, 5,6 thermal properties 7,8 and gas-barrier properties, 9 compared with the virgin polymers or conventional micro filler-incorporated composites while using only a small amount of nanofillers.…”

Section: Introductionmentioning

confidence: 99%

Poly(vinyl alcohol)/graphene oxide nanocomposites prepared by a simple eco-process

Morimune

Nishino

Goto

2012

Polym J

144

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Graphene, a single layer of graphite, has recently attracted a large amount of attention because of its extremely high electronic and thermal properties, as many nanoscale materials are based on individual graphene. Graphene oxide (GO), which is the intermediate during the chemical processing of graphene, consists of graphene functionalized with oxygen-containing functional groups that imparts the desirable solution-processability to the neat graphene. Herein, poly(vinyl alcohol) (PVA), a hydrophilic polymer, was selected as the matrix, and PVA/GO nanocomposites were prepared by a simple and environment friendly process using water as the proceeding medium. In the PVA matrix, GO was exfoliated and nanodispersed. We found that the nanocomposites constructed by the incorporation of GO up to 1% by weight possess remarkable properties, such as significantly high mechanical and thermal properties. These excellent reinforcement effects were achieved not only by the rigid structure and high aspect ratio of the exfoliated GO but also by the strong interaction between PVA and GO. Furthermore, owing to the sheet-like structure of GO, the barrier properties of the nanocomposites were found to be dramatically increased.

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“…Polymer-clay nanocomposites have been studied extensively for several years, and it is now known that the fire properties, thermal stability [1] and [2], gas barrier properties [3], ionic conductivity [4], mechanical properties [5] and [6], etc., are all improved relative to the virgin polymer. Nanocomposites can be described as immiscible, intercalated or exfoliated depending on the type of dispersion of the nanomaterial in the polymer.…”

Section: Introductionmentioning

confidence: 99%

Ferrocene and ferrocenium modified clays and their styrene and EVA composites

Manzi-Nshuti

Wilkie

2007

Polymer Degradation and Stability

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Abstract:In this work, ferrocene-and ferrocenium-containing salts were employed to modify montmorillonite. X-ray measurements show an increase in the interlayer spacing upon clay modification, which means that the larger and more organophilic cations were inserted into the gallery space of montmorillonite. Attempts to prepare nanocomposites of polystyrene and ethylene vinyl acetate copolymers lead to immiscible systems; the morphology of these systems was elucidated with TEM, XRD and cone calorimetry. The thermal stability of the composites is greater than that of the virgin polymer.

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Synthesis of nylon 6–clay hybrid by montmorillonite intercalated with ϵ‐caprolactam

Cited by 913 publications

References 5 publications

Multi-walled carbon nanotube filled polypropylene nanocomposites based on masterbatch route: Improvement of dispersion and mechanical properties through PP-g-MA addition

Multi-walled carbon nanotube filled polypropylene nanocomposites based on masterbatch route: Improvement of dispersion and mechanical properties through PP-g-MA addition

Poly(vinyl alcohol)/graphene oxide nanocomposites prepared by a simple eco-process

Ferrocene and ferrocenium modified clays and their styrene and EVA composites

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