Preparation, characterization and application of advanced isoconversional kinetics to epoxy/1,4-Bis(3-aminopropoxy) butane/MWCNT nanocomposite

Omrani, Abdollah; Rostami, Abbas Ali; Khostavan, Sepide; Vazifeshenas, Yousef

doi:10.1016/j.compositesa.2011.12.005

Cited by 13 publications

(7 citation statements)

References 29 publications

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“…This observation can be interpreted in terms of the interfacial reaction between the f-HNT surface and the epoxy matrix, which results in a lower T o and a higher ÁH. 28,[45][46][47] As seen in Figure 8, no exothermic peak was observed in the DSC curves for both the epoxy monomers and the epoxy suspension with u-HNTs during the whole procedure. However, a curing endothermic peak around 156 C was clearly observed in the epoxy suspension with f-HNTs.…”

Section: Morphology Of the Nanocomposite Interface And Dispersion Of Hnts In Epoxy Matrixmentioning

confidence: 86%

Chemical functionalization for improving dispersion and interfacial bonding of halloysite nanotubes in epoxy nanocomposites

Zhang

Jia

et al. 2014

High Performance Polymers

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The effects of chemical functionalization of halloysite nanotubes (HNTs) on dispersion, interfacial interaction, and mechanical properties of epoxy nanocomposites were investigated. HNT-filled epoxy nanocomposites were fabricated and their morphology and mechanical properties were systematically studied; the results were compared with those for neat epoxy resin. Transmission electron microscopic micrographs revealed uniform morphologic dispersion of functional HNTs in the epoxy matrix. The interfacial interaction between functional HNTs and the epoxy matrix was shown by differential scanning calorimetry and scanning electron microscopy analyses. The reaction between the functional amine--terminated groups of HNTs and epoxy monomers improved the dispersion of HNTs and the interfacial adhesion between HNTs and epoxies. The functional HNT-filled epoxy nanocomposites showed improved mechanical properties compared with the as-received HNT-filled nanocomposites. This was attributed to better dispersion and stronger interfacial interaction.

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Section: Morphology Of the Nanocomposite Interface And Dispersion Of Hnts In Epoxy Matrixmentioning

confidence: 86%

Chemical functionalization for improving dispersion and interfacial bonding of halloysite nanotubes in epoxy nanocomposites

Zhang

Jia

et al. 2014

High Performance Polymers

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“…(4) as mentioned above, calculation of the activation energy, reaction order and pre-exponential factor are prerequisite to determine the specific kinetic model. The two most common theories of activation energy are both Kissinger method [20][21][22] and Ozawa method [23,24]. Both of them can be applied to give the activation energy E 1 and E 2 , respectively, by the Eq.…”

Section: Dynamic Dsc Analysismentioning

confidence: 99%

DSC and curing kinetics study of epoxy grouting diluted with furfural -acetone slurry

Yin

Liu

et al. 2016

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The use of furfural-acetone slurry as active diluents of Bisphenol-A epoxy resin (DGEBA) groutings has been studied by dynamic and non-isothermal DSC for the first time.Curing kinetics study was investigated by non-isothermal differential scanning calorimetries at different heating rates. Activation enery (E a ) was calculated based on Kissinger and Ozawa Methods, and the results showed that E a increased from 58.87 to 71.13KJ/mol after the diluents were added. The furfural-acetone epoxy matrix could cure completely at the theoretical curing temperature of 365.8K and the curing time of 139mins, which were determined by the kinetic model parameters.

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“…Composite specimens with 6 Â 6 Â 0.12 in. 3 dimensions were cured on isostatic hot press at 150 C and 1500 psi for 40 min. Five diverse concentrations of MWCNTs, i.e.…”

Section: Formulation and Fabrication Of Nanocompositesmentioning

confidence: 99%

“…1 Nanoincorporations like nanofillers, nanotube, nanofibers and nanorods interact with the molecular chains of the polymer chemically or physically at the nanoscale, which remarkably influences the physical and chemical properties of the host matrix. 2,3 Styrene butadiene rubber (SBR) is produced using emulsion or solution polymerization. SBR composites are used in tire treads, conveyor belt covers, gaskets, mats, shoe soles, etc, due to their excellent impact strength, good resilience, tensile strength, abrasion resistance, metallic adhesion, tear resistance, acid resistance, water resistance and good flexibility at lower temperatures.…”

Section: Introductionmentioning

confidence: 99%

Multiwalled carbon nanotubes impregnated rubber nanocomposites: thermal transport/decomposition and differential scanning calorimetric study

Sagar

Iqbal

Maqsood

2013

Journal of Reinforced Plastics and Composites

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In order to analyze the effect of multiwalled carbon nanotubes on the thermal transport/stability characteristics of styrene butadiene rubber, five diverse loadings of multiwalled carbon nanotubes were impregnated in the rubber matrix using dispersion kneader and two roller mixing mill. Thermal conductivity and thermal impedance of the nanocomposite specimens were evaluated according to ASTM E1225-99 and D5470-03. It was observed that the thermal conductivity was reduced up to 79% while thermal impedance of the polymer nanocomposite was improved up to 390% at 523 K with 1 wt% impregnation of nanotubes into the base composite formulation. Thermal stability of the polymer nanocomposite was augmented up to 6%, with the utmost incorporation of the nanotubes. Glass transition and crystallization temperatures were diminished, while the onset and peak melting temperatures were increased with increasing filler to matrix ratio. The percent crystallinity of the nanocomposites has been augmented up to 5%, with 1 wt% incorporation of multiwalled carbon nanotubes into the host matrix. Scanning electron microscopy along with energy dispersive X-ray spectroscopy was used to examine the multiwalled carbon nanotubes dispersion in the rubber matrix, for surface analysis of the post-thermally tested composite specimens and for their compositional analysis.

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Preparation, characterization and application of advanced isoconversional kinetics to epoxy/1,4-Bis(3-aminopropoxy) butane/MWCNT nanocomposite

Cited by 13 publications

References 29 publications

Chemical functionalization for improving dispersion and interfacial bonding of halloysite nanotubes in epoxy nanocomposites

Chemical functionalization for improving dispersion and interfacial bonding of halloysite nanotubes in epoxy nanocomposites

DSC and curing kinetics study of epoxy grouting diluted with furfural -acetone slurry

Multiwalled carbon nanotubes impregnated rubber nanocomposites: thermal transport/decomposition and differential scanning calorimetric study

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