Preparation of epoxy composites with CTAB-modified BN and MWCNTs

Özaytekin, İlkay; Türedi, Hamza Ercan; Ahmetli, Gülnare

doi:10.1002/pc.23542

Cited by 11 publications

(12 citation statements)

References 45 publications

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“…Compared to that in uncrosslinked epoxy, the band of hydroxyl groups in cured LW is more intense. The absence of epoxy ring around 913 cm −1 in all cured epoxy systems confirms the completion of the curing process, and the band at 827 cm −1 is still present in the cured epoxy spectra, which is consistent with the literature …”

Section: Resultssupporting

confidence: 91%

“…Compared to that in uncrosslinked epoxy, the band of hydroxyl groups in cured LW is more intense. The absence of epoxy ring around 913 cm 21 in all cured epoxy systems confirms the completion of the curing process, and the band at 827 cm 21 is still present in the cured epoxy spectra, which is consistent with the literature [22,25] Miyagawa et al reported that the cross-linking density of ELO-toughened ER decreased with an increase in the amount of ELO added [18]. The calculated curing degrees of the M-ERs are listed in Table 1.…”

Section: Characterization Of Compositessupporting

confidence: 84%

“…According to the Beer–Lambert Law, the absorption peak at 1600 − 1616 cm −1 of a benzene ring can be regarded as an internal standard. Thus, the degree of curing can be determined from FTIR spectra of the uncured ER and cured modified ER (M‐ER) and composites :

α = \frac{{normalA}_{cured}^{1600} {normalA}_{uncured}^{913} - {normalA}_{cured}^{913} {normalA}_{uncured}^{1600}}{{normalA}_{cured}^{1600} {normalA}_{uncured}^{913}}

where A uncured is the original absorbance of the neat epoxy (without curing) and A cured is the absorbance of the cured M‐ERs.…”

Section: Methodsmentioning

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: Resultssupporting

confidence: 91%

Section: Characterization Of Compositessupporting

confidence: 84%

α = \frac{{normalA}_{cured}^{1600} {normalA}_{uncured}^{913} - {normalA}_{cured}^{913} {normalA}_{uncured}^{1600}}{{normalA}_{cured}^{1600} {normalA}_{uncured}^{913}}

where A uncured is the original absorbance of the neat epoxy (without curing) and A cured is the absorbance of the cured M‐ERs.…”

Section: Methodsmentioning

confidence: 99%

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Evaluation of sugar mill lime waste in biobased epoxy composites

et al. 2016

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“…Conductive polymer composites have many advantages over metallic conductors. They are lighter (in weight), provide corrosion resistance, offer a wide range of electrical conductivity and can be easily shaped with a low cost . Recently, PANI/polymer blends have attracted considerable attention since a very low amount of PANI can make the polymer conductive while maintaining the properties of the other polymer.…”

Section: Resultsmentioning

confidence: 99%

Study on the reuse of marble and andesite wastes in epoxy‐based composites

et al. 2017

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Andesite-(AW) and marble-dust wastes (MW) were recycled to be used in composite preparation. Both were obtained from local industrial sources. Commercially available epoxy resin (ER) and its modified version with polyaniline (PANI) were used as the neat polymer matrix. The dispersion of the fillers was investigated by X-ray diffraction and scanning electron microscopy. The effects of PANI and waste loading on the mechanical, thermal, electrical, water sorption, and corrosion properties were investigated. The optimum loading levels for MW or AW in the composites were found to be 20 wt%. Using thermogravimetric analyses, thermal behavior and stability of the composites prepared were probed. The incorporation of PANI and waste fillers increased the T 10 temperature by 10-338C and the tensile strength by 4-51 MPa of neat ER. The composites containing 10-30 wt% AW filler were found to be semiconductive and electrical conductivity decreased with the increase in AW content. The PANI-ER/ AW composite showed perfect resistance to corrosion and also exhibited the best adhesion. POLYM. COMPOS., 00:000-000, AW composite showed perfect resistance to corrosion and also exhibited the best adhesion. POLYM. COMPOS., 39:3081-3091, 2018. FIG. 7. Polarizing microscope images (mag. 2.523) of ER/MW with 30 wt% (a, b, c) and PANI-ER/AW with 30 wt% (d, e, f) in a 3 % H 2 SO 4 , 5 % NaOH, and 3 % NaCl solutions, respectively. [Color figure can be viewed at wileyonlinelibrary.com]

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“…These values of C.D. of epoxy and epoxy composites were determined using Equation (1) used in previous studies [24][25][26]:…”

Section: Characterization Of Mwcnts and Mwcnt-epoxy Compositesmentioning

confidence: 99%