Applicability of FT-IR Techniques and Goniometry on Characterization of Carbon Fiber Surfaces

Oliveira, Mauro Santos de; Diniz, Milton Faria; Dutra, Rita de Cássia Lazzarini; Massi, M.; Otani, C.

doi:10.5028/jatm.v8i1.537

Cited by 14 publications

(6 citation statements)

References 26 publications

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“…No prominent peaks were observed for the s-CF and d-CF, due to high concentration of carbon. 24 However, stretching vibration of C–H of methyl and methylene groups in the range of 2800–2980 cm −1 for s-CF, and C = C stretching vibration centred around 1668 cm −1 , were observed for the s-CF 25 and d-CF. The feeble peak at 3671 cm −1 and around 1020 cm −1 are attributed to the O-H groups on the surface due to ambient atmospheric moisture for both s-CF and d-CF.…”

Section: Resultsmentioning

confidence: 96%

“…The ATR-IR scan of s-CF, d-CF, and COOH-CF can be seen in Figure 4 (a). No prominent peaks were observed for the s-CF and d-CF, due to high concentration of carbon [24]. However, stretching vibration of C-H of methyl and methylene groups in the range of 2800-2980 cm -1 for s-CF, and C=C stretching vibration centred around 1668 cm -1 , were observed for the s-CF [25] and d-CF.…”

Section: Atr-irmentioning

confidence: 90%

“…No prominent peaks were observed for the s-CF and d-CF, due to high concentration of carbon. 24 Figure 3. Preparation of SFFT sample represented by: (i) initially thin sheets of PP or its blend with MA-g-SEBS were prepared using a hot press.…”

Section: Atr-irmentioning

confidence: 99%

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Interfacial shear strength of surface functionalized and functionalized CNT coated carbon fiber: A single fiber fragmentation study

Gogoi,

Shankar,

Rawat

et al. 2023

Journal of Thermoplastic Composite Materials

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The compatibility among nonpolar thermoplastics like polypropylene (PP) and carbon fibers (CF) having traditional sizing or coating is challenging. In this study, facile and effective surface functionalization of CF and its subsequent coating with functionalized carbon nanotubes (CNTs) were carried out to obtain improved interfacial shear strength (IFSS) which was validated by the single fiber fragmentation test (SFFT). Functional groups, -COOH, -OH, and -NH2, were separately grafted on the CF surface using different chemical routes. Additionally, ultrasonic assisted electrophoretic deposition (EPD) technique was used to coat -COOH, -OH, and -NH2 functionalized CNTs on the sized and surface functionalized CFs. Attenuated total reflection-infrared spectroscopy (ATR-IR), X-ray photoelectron spectroscopy (XPS), and field emission scanning electron microscopy (FE-SEM) images confirmed the successful surface functionalization and coating on CF. Neat PP and a blend of PP and maleic anhydride-grafted-styrene ethylene butylene styrene (MA-g-SEBS) were used as two different base polymer matrixes in preparing a total of 26 different SFFT samples. Silane functionalized CF coated with amine functionalized CNTs using ultrasonic assisted EPD process showed IFSS of ∼29 MPa which was an impressive ∼758% higher than pristine CF and highest among all the surface modified CFs. Interestingly, this translated into useful increase of ∼13% in single fiber tensile strength of functionalized and treated CF over and above that of as received CF.

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Section: Resultsmentioning

confidence: 96%

Section: Atr-irmentioning

confidence: 90%

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Interfacial shear strength of surface functionalized and functionalized CNT coated carbon fiber: A single fiber fragmentation study

Gogoi,

Shankar,

Rawat

et al. 2023

Journal of Thermoplastic Composite Materials

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“…These compounds are constituents of the hexagonal structure of carbon [13]. With increasing temperature during carbonization to about 500 °C, the compound has broken down and formed a new structure, namely the carbon chain, while the remaining hydrocarbon compounds form free radical compounds [14].…”

Section: Resultsmentioning

confidence: 99%

Effect of Heating Temperature on the Chemical Structure and of Conductivity Carbon from Candlenut Shells (<i>Aleurites Moluccana</i>)

Mudaim

Hidayat

Risdiana

2021

MSF

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Candlenut Shells is one of the many commodities growing in Indonesia and experiencing rapid progress production development. The shell of candlenut has good characteristic that allow it to be used as carbon. activated carbon is one of material that can be applied for various application. In this paper, we reported the synthesis of activated carbon from candlenut shell in order to get high quality of carbon by controlling the heating temperature in synthesis. Variation of heating temperature in to produce carbon were 300, 400, 500, 600 and 700 °C . FTIR Spectroscopy was carried out to determine the functional groups on the carbon from candlenut shells. FTIR analysis during the carbonization process was indicated the change in functional group of chemical structure from the candlenut shell, which is shown by decreasing the absorption spectrum of some functional groups of the candlenut shell after the carbonization process. The carbonization process has formed aromatic C = C and reduction functional group OH (aromatic compounds), C-H (aromatic ring), C-O (vibration ether structure) dan C=O (Ester compounds). And results of carbonization of candlenut shells at various temperatures have an electrical conductivity value that increases with increasing carbonization temperature. The carbonization temperature that is raised to 700 °C causes carbon to be more conductive with an increased electrical conductivity value. XRF characterization results also showed that in addition to carbon elements in the cundlenut shells, other elements were also found such as calcium, magnesium, aluminum, potassium, strontium, manganese, iron and zinc. Ca and Mg are the largest content besides carbon.

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“…Infrared Using Synchrotron Radiation. Infrared based synchrotron radiation provides an efficient technique to characterize chemical compounds crosswise surfaces to determine the sample's chemical composition [93,94]. Synchrotron radiation (SR) is the intense light produced by a synchrotron [95][96][97].…”

Section: Concept Of Infrared Spectroscopy-based Synchrotron Radiationmentioning

confidence: 99%

Worthwhile Relevance of Infrared Spectroscopy in Characterization of Samples and Concept of Infrared Spectroscopy-Based Synchrotron Radiation

Odularu

2020

Journal of Spectroscopy

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The study explores the nitty-gritty of infrared spectroscopy. Firstly, the review gives a concise history of infrared discovery and its location in the electromagnetic spectrum. Secondly, the infrared spectroscopy is reported for its mechanism, principles, sample preparation, and application for absence and presence of functional groups determination in both ligands and coordination compounds. Thirdly, it helps in purity determination of unknown samples. Additional studies regarding this study entail infrared spectroscopy-based synchrotron radiation. It serves as a giant microscope to give detailed information of samples under investigation compared to the conventional infrared instrument. Infrared will continue to be useful to both chemical and pharmaceutical industries, in order to make chemical products and manufactured drugs put on wholesome integrity.

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Applicability of FT-IR Techniques and Goniometry on Characterization of Carbon Fiber Surfaces

Cited by 14 publications

References 26 publications

Interfacial shear strength of surface functionalized and functionalized CNT coated carbon fiber: A single fiber fragmentation study

Interfacial shear strength of surface functionalized and functionalized CNT coated carbon fiber: A single fiber fragmentation study

Effect of Heating Temperature on the Chemical Structure and of Conductivity Carbon from Candlenut Shells (<i>Aleurites Moluccana</i>)

Worthwhile Relevance of Infrared Spectroscopy in Characterization of Samples and Concept of Infrared Spectroscopy-Based Synchrotron Radiation

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