A study of the effect of acetylation and propionylation surface treatments on natural fibres

Tserki, V.; Zafeiropoulos, N. E.; Simon, Frank; Panayiotou, Costas

doi:10.1016/j.compositesa.2005.01.004

Cited by 516 publications

(313 citation statements)

References 36 publications

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“…The strong peak at ~1000 cm 1 is associated with Al-O and Si-O asymmetric stretching vibrations and is the fingerprint of the geopolymerisation [31]. The FTIR spectra show a broad peak in the region at 3466 cm 1 corresponding to the hydroxyl (OH) stretching vibration of free and hydrogen bonded -OH groups [32,33], and the absorbance peak around 1653 cm 1 is attributed to the bending vibration of absorbed water [34,35]. The presence of bands in the regions 1440-1490 cm 1 is an indicator of the atmospheric carbonation on the surface of the matrix where it reacts with carbon dioxide [34].…”

Section: Ftir Observationmentioning

confidence: 99%

Characterisation of mechanical and thermal properties in flax fabric reinforced geopolymer composites

et al. 2015

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This paper presents the mechanical and thermal properties of flax fabric reinforced fly ash based geopolymer composites. Geopolymer composites reinforced with 2.4, 3.0 and 4.1 wt% woven flax fabric in various layers were fabricated using a hand lay-up technique and tested for mechanical properties such as flexural strength, flexural modulus, compressive strength, hardness, and fracture toughness. All mechanical properties were improved by increasing the flax fibre contents, and showed superior mechanical properties over a pure geopolymer matrix. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) studies were carried out to evaluate the composition and fracture surfaces of geopolymer and geopolymer/flax composites. The thermal behaviour of composites was studied by thermogravimetric analysis (TGA) and the results showed significant degradation of flax fibres at 300 ℃.

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Section: Ftir Observationmentioning

confidence: 99%

Characterisation of mechanical and thermal properties in flax fabric reinforced geopolymer composites

et al. 2015

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“…Vibrational spectroscopy has been widely used to characterise chemical changes during wood modification (see, for example, González-Peña and Hale 2011; Kotilainen et al 2000;Mitsui et al 2008;Nuopponen et al 2005;Stefke et al 2008;Sun and Sun 2002;Temiz et al 2007;Tserki et al 2005;Venås et al 2006;and Fig. 7).…”

Section: Vibrational Spectroscopymentioning

confidence: 99%

Experimental techniques for characterising water in wood covering the range from dry to fully water-saturated

2017

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Water plays a central role in wood research, since it affects all material properties relevant to the performance of wood materials. Therefore, experimental techniques for characterising water within wood are an essential part of nearly all scientific investigations of wood materials. This review focuses on selected experimental techniques that can give deeper insights into various aspects of water in wood in the entire moisture domain from dry to fully water-saturated. These techniques fall into three broad categories: (1) gravimetric techniques that determine how much water is absorbed, (2) fibre saturation techniques that determine the amount of water within cell walls, and (3) spectroscopic techniques that provide insights into chemical wood-water interactions as well as yield information on water distribution in the macro-void wood structure. For all techniques, the general measurement concept is explained, its history in wood science as well as advantages and limitations.

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“…Significantly reduced intensity peaks are observed in the crystalline patterns of treated bagasse, which indicate that the structure of raw bagasse was transformed to an amorphous structure after the acetylation reaction. Acetylation of cellulose materials often causes decrease in crystallinity [22][23][24]. The major part of cellulose is in crystalline form (about two-thirds) due to intraand intermolecular hydrogen bonding of hydroxyl groups [25].…”

Section: Xrd Analysismentioning

confidence: 99%

Partially Acetylated Sugarcane Bagasse for Wicking Oil from Contaminated Wetlands

2011

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Sugarcane bagasse was partially acetylated to enhance its oil‐wicking ability in saturated environments while holding moisture for hydrocarbon biodegradation. The water sorption capacity of raw bagasse was reduced fourfold after treatment, which indicated considerably increased hydrophobicity but not a limited capability to hold moisture for hydrocarbon biodegradation. Characterization results by Fourier transform infrared (FT‐IR), scanning electron microscopy (SEM), X‐ray diffraction (XRD), and surface area analyzer suggested that treated bagasse exhibited enhanced hydrophobicity and surface area. Oil wicking test results indicate that treated bagasse is more effective in wicking oil from highly saturated environments than raw bagasse and suggest that application of this material in remediation of oil spills in highly saturated wetlands is promising.

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A study of the effect of acetylation and propionylation surface treatments on natural fibres

Cited by 516 publications

References 36 publications

Characterisation of mechanical and thermal properties in flax fabric reinforced geopolymer composites

Characterisation of mechanical and thermal properties in flax fabric reinforced geopolymer composites

Experimental techniques for characterising water in wood covering the range from dry to fully water-saturated

Partially Acetylated Sugarcane Bagasse for Wicking Oil from Contaminated Wetlands

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