Synthesis and Characterization of Layered Silicate-Epoxy Nanocomposites

Messersmith, Phillip B.; Giannelis, Emmanuel P.

doi:10.1021/cm00046a026

Cited by 1,058 publications

(707 citation statements)

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“…The increase in the glass transition temperature of the epoxy polymer with the addition of surface-treated silicates has been reported in the literature [53]. The present work has also shown that T g increases as the silicate loading increases.…”

Section: Glass Transition Temperatures Resultssupporting

confidence: 85%

The mechanical properties and fracture behaviour of epoxy-inorganic micro- and nano-composites

2006

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Hybrid materials have been formed using an epoxy polymeric matrix and a range of inorganic particles, including mica and organically-modified montmorillonites ('organoclays'), with various concentrations of the silicate modifier up to about 30wt.% depending upon the viscosity increase induced by the presence of the silicate. Wide-angle and small-angle X-ray scattering plus transmission electron microscopy were used to identify the morphologies produced, which included particulate, intercalated and ordered exfoliated. The modulus of these composites increased with the weight fraction of silicate.

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Section: Glass Transition Temperatures Resultssupporting

confidence: 85%

The mechanical properties and fracture behaviour of epoxy-inorganic micro- and nano-composites

2006

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“…The intercalated or exfoliated forms of nanolayer silicates in many polymer systems have improved stiffness, strength, fracture toughness, fire resistance, barrier properties, and dimensional stability of the material [1][2][3][4][5][6]. The reinforcing ability of nanoclay is due to its high modulus, high strength and high aspect ratio.…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature, duration and speed of pre-mixing on the dispersion of clay/epoxy nanocomposites

Ngo

Ton‐That

Hoa

et al. 2009

Composites Science and Technology

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The effect of temperature, duration and speed of pre-mixing on the dispersion of organoclay in epoxy was studied. The technique of high-speed mixing process was used. Epoxy and Cloisite 30B were pre-mixed at different temperatures, different speeds and for different durations of time. The quality of dispersion and intercalation/exfoliation of organoclay in epoxy after pre-mixing (before adding hardener) was analyzed by means of X-ray diffraction (XRD) and viscosity measurement. The dispersion and intercalation/exfoliation of organoclay in the epoxy nanocomposites (ENCs) after curing were characterized by XRD, field emission gun scanning electron microscopy (FEGSEM) and TEM. The results illustrate that the clay particles were broken down to smaller and smaller sizes with increase of pre-mixing temperature and especially with increase in pre-mixing speed. These parameters do not significantly affect the intercalation/exfoliation of organoclay in epoxy at the pre-mixing step, but they have indirect effect on intercalation/exfoliation at the curing step.

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“…Many studies have been recently focusing on the development and characterization of new nanocomposites exhibiting anisotropic morphologies [8][9][10][11][12][13][14]. Specific mechanical and physical properties are expected when the filler particles are plateletshaped [15,16].…”

Section: Introductionmentioning

confidence: 99%

Morphological study of magnesium hydroxide nanoparticles precipitated in dilute aqueous solution

Henrist

Mathieu

Vogels

et al. 2003

Journal of Crystal Growth

335

216

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Among other applications, magnesium hydroxide is commonly used as a flame-retardant filler in composite materials, as well as a precursor for magnesium oxide refractory ceramic. The microstructure of the powder is of prime importance in both technical applications. The influence of synthesis parameters on the morphological characteristics of magnesium hydroxide nanoparticles precipitated in dilute aqueous medium was studied. Several parameters were envisaged such as chemical nature of the base precipitant, type of counter-ion, temperature and hydrothermal treatment. Special attention was given to the obtaining of platelet-shaped, nanometric and de-agglomerated powders. The powders were characterized in terms of particle size distribution, crystal habits, morphology and ability to be redispersed in water. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), nitrogen adsorption and laser diffusion analyses were used for this purpose. r

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Synthesis and Characterization of Layered Silicate-Epoxy Nanocomposites

Cited by 1,058 publications

References 0 publications

The mechanical properties and fracture behaviour of epoxy-inorganic micro- and nano-composites

The mechanical properties and fracture behaviour of epoxy-inorganic micro- and nano-composites

Effect of temperature, duration and speed of pre-mixing on the dispersion of clay/epoxy nanocomposites

Morphological study of magnesium hydroxide nanoparticles precipitated in dilute aqueous solution

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