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
Synthesis and characterization of novel organo-montmorillonites
TL;DR: In this paper, a wide angle X-ray diffraction (WAXD) and thermogravimetric analysis (TGA) technique was used to characterize the structure and thermal stability of organo-montmorillonites (OMMT) clays.
Journal ArticleDOI
Characterisation of solution cast cellulose nanofibre - reinforced poly(lactic acid)
TL;DR: In this article, a composite film with 2.5 and 5.0 wt% flax cellulose fibres was prepared by solution casting of mixtures of poly(lactic acid) (PLA) solution and cellulose nanofibre suspension in chloroform.
Journal ArticleDOI
Morphology and mechanical properties of layered silicate reinforced natural and polyurethane rubber blends produced by latex compounding
TL;DR: In this paper, the dispersion of the LS latices in the composite was studied by X-ray diffraction (XRD) and transmission electron microscopy (TEM), and informa- tion on the rubber/LS interaction was received from Fourier transform infrared spectroscopy (FTIR) and dynamic me- chanical thermal analysis (DMTA).
Journal ArticleDOI
Nano clay reinforced PCL/starch blends obtained by high energy ball milling
TL;DR: In this paper, a ball milling process was used to improve the compatibilization between the PCL and the starch phases, while promoting the dispersion of clay minerals at nanometric level.
Journal ArticleDOI
Segmental Dynamics of Polymer Melts with Spherical Nanoparticles
TL;DR: In this paper, the impact of spherical nanoparticles (NPs) on the segmental dynamics of polymer melts is investigated, and it is shown that the addition of NPs broadens the segmentation dynamics with effects of both particle size and loading.
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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