Qualitative and quantitative assessment of water sorption in natural fibres using ATR-FTIR spectroscopy

Célino, Amandine; Gonçalves, Olivier; Jacquemin, Frédéric; Fréour, Sylvain

doi:10.1016/j.carbpol.2013.09.023

Cited by 188 publications

(102 citation statements)

References 41 publications

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“…Similarly the absorption peaks at 1620 cm À1 and 3328 cm À1 are attributed to the bending vibration of absorbed water molecule as well as stretching vibration of hydroxyl group in cellulose and hemicellulose, respectively. [24] In case of SiB, additional peaks were observed at 1079 and 899 cm À1 , highlighting the difference between UTB and SiB.…”

Section: Resultsmentioning

confidence: 93%

Effect of poly (lactic acid)‐graft‐glycidyl methacrylate as a compatibilizer on properties of poly (lactic acid)/banana fiber biocomposites

Sajna

Mohanty

Nayak

2015

Polymers for Advanced Techs

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The main aim of this study was to synthesis of poly (lactic acid) (PLA)-graft-glycidyl methacrylate (GMA) as well as its influence on the properties of PLA/banana fiber biocomposites. PLA-graft-GMA graft copolymer (GC) was synthesized by melt blending PLA with GMA using benzoyl peroxide and dicumyl peroxide as initiators. Graft copolymerization was confirmed by FTIR and 1 H-NMR spectroscopic studies. PLA/silane treated banana fiber (SiB) biocomposites with various GC concentrations were prepared by melt blending followed by injection molding techniques. The influence of GC content on the mechanical, thermal and moisture resistance properties of the composite was investigated. The addition of 15 wt% GC content in the biocomposite provided optimum tensile and flexural strength, which is attributed to the greater compatibility between fiber and PLA matrix. The thermal properties of biocomposites have been evaluated using thermogravimetric analysis which provided evidence of improved interfacial adhesion between SiB and PLA by the addition of GC. Additionally, GC enhanced the moisture absorption resistance of biocomposites. These results indicated that GC is indeed a good candidate as a compatibilizing agent to improve the compatibility in PLA/fiber biocomposites.

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Section: Resultsmentioning

confidence: 93%

Effect of poly (lactic acid)‐graft‐glycidyl methacrylate as a compatibilizer on properties of poly (lactic acid)/banana fiber biocomposites

Sajna

Mohanty

Nayak

2015

Polymers for Advanced Techs

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show abstract

“…Decreasing intensity of this band at lower relative humidity content has been observed in earlier studies. 16,41 …”

Section: Resultsmentioning

confidence: 99%

“…14 Spectroscopic techniques such as terahertz time domain (THz-TD), Raman, and FT-IR spectroscopy have been used for separate characterization of cellulosic natural and man-made fibers. 14–20 …”

Section: Introductionmentioning

confidence: 99%

On the Identification of Rayon/Viscose as a Major Fraction of Microplastics in the Marine Environment: Discrimination between Natural and Manmade Cellulosic Fibers Using Fourier Transform Infrared Spectroscopy

et al. 2016

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This work was sparked by the reported identification of man-made cellulosic fibers (rayon/viscose) in the marine environment as a major fraction of plastic litter by Fourier transform infrared (FT-IR) transmission spectroscopy and library search. To assess the plausibility of such findings, both natural and man-made fibers were examined using FT-IR spectroscopy. Spectra acquired by transmission microscopy, attenuated total reflection (ATR) microscopy, and ATR spectroscopy were compared. Library search was employed and results show significant differences in the identification rate depending on the acquisition method of the spectra. Careful selection of search parameters and the choice of spectra acquisition method were found to be essential for optimization of the library search results. When using transmission spectra of fibers and ATR libraries it was not possible to differentiate between man-made and natural fibers. Successful differentiation of natural and man-made cellulosic fibers has been achieved for FT-IR spectra acquired by ATR microscopy and ATR spectroscopy, and application of ATR libraries. As an alternative, chemometric methods such as unsupervised hierarchical cluster analysis, principal component analysis, and partial least squares-discriminant analysis were employed to facilitate identification based on intrinsic relationships of sample spectra and successful discrimination of the fiber type could be achieved. Differences in the ATR spectra depending on the internal reflection element (Ge versus diamond) were observed as expected; however, these did not impair correct classification by chemometric analysis. Moreover, the effects of different levels of humidity on the IR spectra of natural and man-made fibers were investigated, too. It has been found that drying and re-humidification leads to intensity changes of absorption bands of the carbohydrate backbone, but does not impair the identification of the fiber type by library search or cluster analysis.

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“…A strong similarity between the FTIR spectra of four types of bamboo flour was observed. There was a strong hydrogen bonded O-H stretching around 3400 cm -1 which is significantly impacted by water (Célino et al 2014). The absorption peak in the region from 1100 to 1050 cm -1 is assigned to Si-O-Si vibration, which indicates the existence of silicon, e.g., silicon oxide (SiO 2 ); The region of 1750-1700 and 2950-2900 cm -1 are absorption bands of fatty acid substance (Zhang et al 2013a).…”

Section: Color Measurement Of Bamboo Bundlementioning

confidence: 99%

Effect of removing extent of bamboo green on physical and mechanical properties of laminated bamboo-bundle veneer lumber (BLVL)

Deng

Wang

et al. 2015

Eur. J. Wood Prod.

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This study employed the process of removing bamboo green and bamboo brooming from Neosinocalamus affinis in the production of laminated bamboo-bundle veneer lumber (BLVL) with a thickness of 28 mm. The effect of the removing extent of bamboo green on dimensional stability, modulus of rupture, modulus of elasticity and horizontal shearing strength of BLVL was discussed. The results show a rising trend for the lightness (L*) as well as red hue (a*) and yellow hue (b*) with increasing extent of removing bamboo green, The higher the extent of removing bamboo green, the less wax and SiO 2 remained on the bamboo surface, the smaller the contact angle of bamboo-bundle and the better the dimensional stability of the corresponding BLVL. As the removing extent of bamboo green increased, BLVL exhibited a slightly decreasing value of modulus of rupture, modulus of elasticity and horizontal shear strength prior to the 28 h cycling treatment, while less strength reduction was observed after the treatment. The ones without removal of bamboo green suffered most severe strength reduction. In terms of horizontal shearing strength, A, B, C, D could meet the standard requirement of GB/T 20241-2006, while A, B and C, except for D, could reach the 9 V-12H level according to Bamboo Scrimber standard.

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Qualitative and quantitative assessment of water sorption in natural fibres using ATR-FTIR spectroscopy

Abstract: To cite this version:Amandine Célino, Olivier Gonçalves, Frédéric Jacquemin, Sylvain Fréour. Qualitative and quantitative assessment of water sorption in natural fibres using ATR-FTIR spectroscopy. Carbohydrate

Cited by 188 publications

References 41 publications

Effect of poly (lactic acid)‐graft‐glycidyl methacrylate as a compatibilizer on properties of poly (lactic acid)/banana fiber biocomposites

Effect of poly (lactic acid)‐graft‐glycidyl methacrylate as a compatibilizer on properties of poly (lactic acid)/banana fiber biocomposites

On the Identification of Rayon/Viscose as a Major Fraction of Microplastics in the Marine Environment: Discrimination between Natural and Manmade Cellulosic Fibers Using Fourier Transform Infrared Spectroscopy

Effect of removing extent of bamboo green on physical and mechanical properties of laminated bamboo-bundle veneer lumber (BLVL)

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