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
Biodegradable Nanocomposites of Poly(butylene adipate-co-terephthalate) (PBAT) and Organically Modified Layered Silicates
S. Mohanty,S. K. Nayak +1 more
TL;DR: In this paper, the development of poly(butylene adipate-co-terephthalate) (PBAT) and organically modified layered silicates nanocomposite using a co-rotating twin screw extruder having a blown film unit was summarized.
Journal ArticleDOI
Surface characteristics of layered silicates: Influence on the properties of clay/polymer nanocomposites.
TL;DR: The results showed that the surface energy of uncoated layered silicates is large; thus, the forces keeping the layers together are very strong, and the effect of organophilization on the properties of polypropylene/clay composites was determined by the measurement of tensile properties.
Journal ArticleDOI
Dielectric properties of polyvinyl alcohol (PVA) nanocomposites filled with green synthesized zinc sulphide (ZnS) nanoparticles
P Lokanatha Reddy,Kalim Deshmukh,K. Chidambaram,Mohammad M. Nazeer Ali,Kishor Kumar Sadasivuni,Y. Ravi Kumar,R. Lakshmipathy,S. K. Khadheer Pasha +7 more
TL;DR: In this article, zinc sulphide nanoparticles (ZnS NPs) were used as nanofiller to fabricate polyvinyl alcohol (PVA) based nanocomposite films via solution casting method.
Journal ArticleDOI
Processing and morphological development of montmorillonite epoxy nanocomposites
Chenggang Chen,David Curliss +1 more
TL;DR: In this paper, the authors reported that synthesized organolayered silicates can be used to make epoxy nanocomposites and characterized by wide-angle x-ray diffraction, small-angle X-ray scattering (SAXS) and transmission electron microscopy.
Journal ArticleDOI
The thermal degradation behaviour of polydimethylsiloxane/montmorillonite nanocomposites
TL;DR: In this article, a series of novel polydimethylsiloxane/montmorillonite (PDMS/MMT) nanocomposites was prepared and the thermal degradation behavior of these nanocompositionites was studied by means of TVA and TGA.
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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