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
Melt compounded epoxidized natural rubber/layered silicate nanocomposites: structure-properties relationships
TL;DR: In this article, the dispersion state of the layered silicates was studied by X-ray diffraction and transmission electron microscopy, and the best mechanical properties were found for the ENR containing the organoclay with primary amine modification.
Journal ArticleDOI
Preparation and characterization of biodegradable methyl cellulose/montmorillonite nanocomposite films
Sibel Tunç,Osman Duman +1 more
TL;DR: In this paper, the preparation of methyl cellulose/montmorillonite (MC/MMT) nanocomposite films were optimized by testing 30 procedures including differences in type of mixing, speed of mixing and time of mixing.
Journal ArticleDOI
Impact fracture behavior of clay–reinforced polypropylene nanocomposites
Q. Yuan,R.D.K. Misra +1 more
TL;DR: In this article, the micromechanism of plastic deformation during impact loading of polypropylene-clay nanocomposites is examined and compared with the unreinforced polyethylene under identical conditions of processing to underscore the determining role of clay.
Journal ArticleDOI
Preparation of active antimicrobial methyl cellulose/carvacrol/montmorillonite nanocomposite films and investigation of carvacrol release
Sibel Tunç,Osman Duman +1 more
TL;DR: In this paper, the authors used X-ray diffraction and transmission electron microscopy to obtain active antimicrobial packaging materials, such as methyl cellulose (MC)/carvacrol (CRV)/montmorillonite (MMT) nanocomposite films.
Journal ArticleDOI
Surface-modification of cellulose nanowhiskers and their use as nanoreinforcers into polylactide: A sustainably-integrated approach
Jean-Marie Raquez,Y. Murena,Anne-Lise Goffin,Youssef Habibi,Benoit Ruelle,F. DeBuyl,Philippe Dubois +6 more
TL;DR: In this article, bionanocomposites based on renewable cellulose nanowhiskers (CNWs) as nanofillers and renewable poly( l -lactide) (PLA) as polymeric matrix were successfully and straightforwardly prepared using melt-extrusion technique.
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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