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
Starch and its derivatives for paper coatings: A review
TL;DR: In this article, a review summarizes the recent progress of starch and its derivatives in surface sizing, coating binder, and functional coatings, and future trends and opportunities for starch-based coatings are also discussed.
Journal ArticleDOI
Nanocomposites from styrene–butadiene rubber (SBR) and multiwall carbon nanotubes (MWCNT) part 2: Mechanical properties
TL;DR: Mooneye et al. as discussed by the authors demonstrated that styreneebutadiene rubber (SBR) composites containing up to 15 wt. % of welldispersed, discreet MWCNTs can be prepared with a specific surface modification and controlled aspect ratios.
Journal ArticleDOI
Multifunctional Nanoclay Hybrids of High Toughness, Thermal, and Barrier Performances
Houssine Sehaqui,Houssine Sehaqui,Joby J. Kochumalayil,Andong Liu,Tanja Zimmermann,Lars Berglund +5 more
TL;DR: Despite their high MTM content in the 60-85 wt % range, the hybrids exhibit remarkable ductility and a storage modulus above 2 GPa even in severe conditions (300°C or 94% RH).
Journal ArticleDOI
Polypropylene-Layered Silicate Nanocomposites: Filler Matrix Interactions and Mechanical Properties
TL;DR: In this article, the effect of filler-matrix interactions on intercalation-exfoliation behavior and the mechanical properties of the composites were investigated, with increasing the chain packing density, an increase in the d-spacing was observed and for the same cation, the OMMT was higher for the higher CEC clay.
Journal ArticleDOI
Synthesis and physical properties of layered silicates/polyurethane nanocomposites
TL;DR: In this paper, the authors synthesize polyurethane nanocomposites using diphenylmethane diisocyanate, poly(e-caprolactone) diol, di(ethylene glycol), and a clay functionalized by hydroxyl groups.
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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