Epoxy resin nanocomposites reinforced with ionized liquid stabilized carbon nanotubes

Wang, Zhe; Yang, Xiongtao; Wang, Qiang; Hahn, H. Thomas; Lee, Sang‐gi; Lee, Kun-Hong; Guo, Zhanhu

doi:10.1080/19475411.2011.594104

Cited by 40 publications

(30 citation statements)

References 43 publications

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“…1-3). Characteristic bands belonging to CAH vibrations are observed in the regions of 2830 2 3000, 1600, 1400 2 1450 and 1375 cm 21 for aliphatic CAH stretching, aromatic C 5 C stretching, aliphatic CAH bending and CAH rock, respectively. The presence of epoxide groups is also characterized by the appearance of typical bands at 1250, 906 2 913 and 830 cm 21 ( Fig.…”

Section: Characterization Of Compositesmentioning

confidence: 99%

“…The FTIR spectra of the composites were obtained with Bruker-Platinum ATR-vertex 70 (Germany) between 500 and 4000 cm 21 wavenumbers at a resolution of 4 cm 21 using an attenuated total reflectance (ATR) accessory.…”

Section: Analysis and Testingmentioning

confidence: 99%

“…As reported by Park et al [25], the absorption assigned to CAO stretching of the epoxide at 906 cm 21 almost disappeared after curing in the neat ERs. In all cured epoxy systems, ether (C-O-C stretch) bonds detected at 1030 cm 21 are formed by the reaction of hydroxyl groups with the epoxy ring. The band for hydroxyl group (-OH) in cured composites is shifted from 3397 cm 21 in ER/LW to 3359 cm 21 for ER-ESO/LW (Figs.…”

Section: Characterization Of Compositesmentioning

confidence: 99%

“…In all cured epoxy systems, ether (C-O-C stretch) bonds detected at 1030 cm 21 are formed by the reaction of hydroxyl groups with the epoxy ring. The band for hydroxyl group (-OH) in cured composites is shifted from 3397 cm 21 in ER/LW to 3359 cm 21 for ER-ESO/LW (Figs. 2 and 3).…”

Section: Characterization Of Compositesmentioning

confidence: 99%

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Evaluation of sugar mill lime waste in biobased epoxy composites

et al. 2016

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In this study, precipitated calcium carbonate-lime waste (LW) from sugar beet production was recycled as a raw material for the preparation of composite materials. Epoxidized soybean oil (ESO) was used as a co-matrix in 50 wt% with bisphenol A-type epoxy resin (ER). The composites were prepared with LW in varied per cent values (10 2 50 wt%) using the casting technique. The morphology of the composites was characterized by X-ray diffraction and scanning electron microscopy. Effects of ESO and LW amounts on the mechanical and thermal properties of the composites were investigated. Modification with ESO remarkably enhanced the plasticity of the material, but decreased the curing degree about 2%. The modified ER shows about 13% increase in elongation at break over the pure epoxy matrix. Density and hardness of neat epoxy matrices were observed to increase with the LW content in the composite. Tensile strengths of all composites are higher than that obtained with neat epoxy. The thermogravimetric analyses show that ESO and LW significantly improve the thermal stability of neat ER at the temperatures above 3008C. The best thermal results were obtained with the composites containing 40-and 50 wt% LW. The residual weights of the composites are higher than that of neat ER and ER-ESO, and increases with the increasing LW amount. The T 5,

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Section: Characterization Of Compositesmentioning

confidence: 99%

Section: Analysis and Testingmentioning

confidence: 99%

Section: Characterization Of Compositesmentioning

confidence: 99%

Section: Characterization Of Compositesmentioning

confidence: 99%

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Evaluation of sugar mill lime waste in biobased epoxy composites

et al. 2016

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“…Cured EMIM/epoxy resin materials (with high IL content 17.6 phr) exhibited very low electrical network percolations; 1.7"10 -2 and 8.6"10 -5 vol% for GN and SWCNT, respectively. In literature more tedious methodology of epoxy resin/CNT/ionic liquid nanocomposite manufacturing was also reported [20,21]. Wang and Guo group applied imidazolium IL chemically functionalized CNT for epoxy nanocomposites preparation.…”

Section: Introductionmentioning

confidence: 99%

Epoxy resin/phosphonium ionic liquid/carbon nanofiller systems: Chemorheology and properties

Mąka¹,

Spychaj²,

Pilawka³

2014

Express Polym. Lett.

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Abstract. Epoxy nanocomposites with commercial carbon nanotubes (CNT) or graphene (GN) have been prepared using phosphonium ionic liquid [trihexyltetradecylphosphonium bis(2,4,4-trimethylpentyl) phosphinate, IL-f]. IL-f served simultaneously as nanofiller dispersing medium and epoxy resin catalytic curing agent. An influence of IL-f/epoxy weight ratio (3, 6 and 9/100, phr), carbon nanofiller type and content on viscosity of epoxy compositions during storage at ambient temperature was evaluated. Curing process was controlled for neat and CNT or GN modified epoxy compositions (0.25-1.0 wt% load) using differential scanning calorimetry and rheometry. Epoxy nanocomposites exhibited slightly increased glass transition temperature values (146 to 149°C) whereas tan ! and storage modulus decreased (0.30 to 0.27 and 2087 to 1070 MPa, respectively) as compared to reference material. Crosslink density regularly decreased for composites with increasing CNT content (11 094 to 7020 mol/m 3 ). Electrical volume resistivity of the nanocomposites was improved in case of CNT to 4"10 1 #"m and GN to 2"10 5 #"m (nanofiller content 1 wt%). Flame retardancy was found for modified epoxy materials with as low GN and phosphorus content as 0.25 and 0.7 wt%, respectively (increase of limiting oxygen index to 26.5%).

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Fiber Reinforced Polymer Nanocomposites for Structural Engineering Applications

Balasubramaniam

Sathiyan

Palani

et al. 2019

Materials Science and Technology

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Fiber reinforced polymer (FRP) materials are an important and vibrant structural composite material. FRP comprises of strong and stiff reinforcing fibers embedded in a matrix resin, mainly polymer‐based. A fundamental requirement of engineered structural composites is sufficient strength to support the full superimposed and self‐weight loads. In addition to mechanical properties, structural materials should possess robust physical and in‐service characteristics required to function in aggressive and sometimes hostile environments. Carbon fiber reinforced polymer (CFRP) composites are increasingly being targeted as replacement of steel and repair materials for concrete structures in civil infrastructure applications. Outstanding performances are noticed when CFRP is used for rehabilitation and strengthening of concrete structures. Further, enhancement of strength and stiffness via simple patching techniques provides additional benefits. Although CFRP composites provide an effective method to strengthen concrete structures, degradation of its performance is unavoidable due to different environmental exposure conditions such as moisture, temperature, and various chemicals atmospheres including chloride, alkaline, and salt water. The greater the degradation of structures, the lower will be their load carrying capacity. Hence, particular focus is on the development of advanced fiber reinforced polymer nanocomposites. This article introduces the effect of FRP nanocompositing and strengthening with epoxies for enhanced durability functions of CFRP in retrofitting/rehabilitation applications.

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Epoxy resin nanocomposites reinforced with ionized liquid stabilized carbon nanotubes

Cited by 40 publications

References 43 publications

Evaluation of sugar mill lime waste in biobased epoxy composites

Evaluation of sugar mill lime waste in biobased epoxy composites

Epoxy resin/phosphonium ionic liquid/carbon nanofiller systems: Chemorheology and properties

Fiber Reinforced Polymer Nanocomposites for Structural Engineering Applications

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