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
More filters
Book
Fire Properties of Polymer Composite Materials
Adrian P. Mouritz,A.G. Gibson +1 more
TL;DR: In this paper, the authors proposed a model for modeling composites in fire and showed that composites can resist fire under load and post-fire properties of laminates under load.
Journal ArticleDOI
Studies on the Mechanism by Which the Formation of Nanocomposites Enhances Thermal Stability
TL;DR: In this paper, the presence of paramagnetic iron in the matrix of polystyrene-clay nanocomposites has been investigated and shown to increase the onset temperature of thermal degradation.
Journal ArticleDOI
New advances in polymer/layered silicate nanocomposites
TL;DR: In this paper, a review of recent advances in polymer silicate nanocomposites is presented, highlighting the properties of specific nanocom composites while emphasizing the lack of properties trade-offs in these systems.
Journal ArticleDOI
Influence of compatibilizer and processing conditions on the dispersion of nanoclay in a polypropylene matrix
TL;DR: In this paper, the effects of concentration of grafted polypropylene and processing parameters were investigated, and a Carreau-Yasuda law with a yield stress was proposed to describe the rheological behavior of these materials.
Journal ArticleDOI
Can nanoparticles really enhance thermal stability of polymers? Part I: An overview on thermal decomposition of addition polymers
TL;DR: In this paper, the effect of different nanoparticles, their dispersion and the used modifiers, on polymer thermal stability was highlighted, highlighting the effect that hydrogen or covalent bonds can increase the adhesion of nanoparticles with the polymer matrix, resulting in higher dispersion degrees.
References
More filters
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.
Related Papers (5)
Polymer/layered silicate nanocomposites: a review from preparation to processing
An assessment of high voltage electron microscopy (HVEM). An invited review
M.H. Loretto,R.E. Smallman +1 more