Journal ArticleDOI
Polymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials
TLDR
In this article, a review of polymer-layered silicate nanocomposites is presented, where the polymer chains are sandwiched in between silicate layers and exfoliated layers are more or less uniformly dispersed in the polymer matrix.Abstract:
This review aims at reporting on very recent developments in syntheses, properties and (future) applications of polymer-layered silicate nanocomposites. This new type of materials, based on smectite clays usually rendered hydrophobic through ionic exchange of the sodium interlayer cation with an onium cation, may be prepared via various synthetic routes comprising exfoliation adsorption, in situ intercalative polymerization and melt intercalation. The whole range of polymer matrices is covered, i.e. thermoplastics, thermosets and elastomers. Two types of structure may be obtained, namely intercalated nanocomposites where the polymer chains are sandwiched in between silicate layers and exfoliated nanocomposites where the separated, individual silicate layers are more or less uniformly dispersed in the polymer matrix. This new family of materials exhibits enhanced properties at very low filler level, usually inferior to 5 wt.%, such as increased Young’s modulus and storage modulus, increase in thermal stability and gas barrier properties and good flame retardancy.read more
Citations
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Journal ArticleDOI
Spectroscopic Characterization of a New Type of Conducting Polymer−Clay Nanocomposite
Journal ArticleDOI
Novel flame retardants containing cyclodextrin nanosponges and phosphorus compounds to enhance EVA combustion properties
TL;DR: In this paper, a novel flame retardant intumescent system, aimed to improve the fire stability of EVA, has been prepared by melt blending of the copolymer and a complex of cyclodextrin nanosponge-phosphorus compounds.
Journal ArticleDOI
Cellulose nanocrystal-filled poly(acrylic acid) nanocomposite fibrous membranes.
Ping Lu,You-Lo Hsieh +1 more
TL;DR: Heat-induced esterification between the CNC surface hydroxyls and PAA carboxyl groups produced covalent crosslinks at the C NC-PAA interfaces, rendering the nanocomposite fibrous membranes insoluble in water, more thermally stable and far more superior in tensile strength.
Journal ArticleDOI
Effects of primary and quaternary amine intercalants on the organoclay dispersion in a sulfur-cured EPDM rubber
K. G. Gatos,József Karger-Kocsis +1 more
TL;DR: In this article, the effects of primary and quaternary amine modified montmorillonite (MMT) on the nanocomposite formation in an EPDM were studied.
Journal ArticleDOI
Synthesis of polymer nanocomposites by UV-curing of organoclay-acrylic resins
Laurent Keller,Christian Decker,Khalid Zahouily,Said Benfarhi,J.M. Le Meins,J. Miehe-Brendle +5 more
TL;DR: In this article, a photo-initiated polymerization of a multifunctional acrylic resin containing organophilic clay was demonstrated by X-ray diffraction spectroscopy and by transmission electron microscopy.
References
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Journal ArticleDOI
Mechanical properties of nylon 6-clay hybrid
Yoshitsugu Kojima,Arimitsu Usuki,Masaya Kawasumi,Akane Okada,Yoshiaki Fukushima,Toshio Kurauchi,Osami Kamigaito +6 more
TL;DR: In this paper, the properties of nylon 6-clay hybrids, such as molecular composites of nylon and silicate layers of montmorillonite and saponite, NCH's and NCHP's, respectively, have been synthesized.
Journal ArticleDOI
Synthesis of nylon 6-clay hybrid
Arimitsu Usuki,Yoshitsugu Kojima,Masaya Kawasumi,Akane Okada,Yoshiaki Fukushima,Toshio Kurauchi,Osami Kamigaito +6 more
TL;DR: In this paper, the carboxyl and amino end groups were attributed to ammonium cations (-NH3+) of nylon molecules, because the difference agreed with the anion site concentration of the montmorillonite in NCH.
Journal ArticleDOI
Flammability and thermal stability studies of polymer layered-silicate (clay) nanocomposites
TL;DR: In this article, an overview of the research to date on the use of clays, dispersed at the nanometer level, in polymers for improving thermal stability and flammability is presented.
Journal ArticleDOI
Synthesis and properties of polyimide–clay hybrid
TL;DR: A polyimide hybrid with montmorillonite clay mineral has been synthesized from a dimethylacetamide (DMAC) solution of poly(amic acid) and a DMAC dispersion of montmoroniite intercalated with an ammonium salt of dodecylamine as mentioned in this paper.
Journal ArticleDOI
Preparation and Mechanical Properties of Polypropylene−Clay Hybrids
TL;DR: In this paper, the dispersibility of 10-A-thick silicate layers of the clays in the hybrid was investigated by using a transmission electron microscope and X-ray diffractometer.
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