Analyse de la pyrolyse menagee du bois par un couplage TG-DSC-IRTF

Weiland, Jean-Jacques; Guyonnet, René; Gibert, Raymonde

doi:10.1007/bf02719028

Cited by 23 publications

(8 citation statements)

References 4 publications

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“…Thermal analysis by thermogravimetric analysis (TGA) is common and has been particularly adapted for the study of mass variation (Bourgois et al 1989;Popescu 1996;Weiland et al 1998;Guo 2004). Furthermore, the measurements in TGA can be performed during rising temperature, at a static rate (isotherm) or under a temperature program.…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis and Morphological Characterization of Thermoplastic Composites Filled with Almond Shell Flour/Montmorillonite

Hosseinihashemi¹,

Eshghi²,

Ayrılmış³

et al. 2016

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The main objective of this research was to study the potential uses of almond shell flour (ASF) in the production of thermoplastic composites containing montmorillonite (MMT). Thirty, 35, and 40 wt% ASF was used, and 2.0 wt% maleic anhydride-grafted polypropylene was used as the compatibilizer. Two levels of MMT nanoclay, 2.5 and 5.0 wt%, were mixed with polypropylene (PP). The effects of MMT on the thermal properties of the blended composites were evaluated using thermogravimetric analysis (TGA), morphological characterization, scanning electron microscopy (SEM), and X-ray diffraction (XRD). The XRD data showed that the relative intercalation of the composites with 2.5 wt% MMT was higher than that of the 5.0 wt% nanoclay composites. The TGA results indicated that by increasing the MMT percentage, the degradation temperature and the thermal stability were enhanced. The MMT exhibited better dispersion in the clay layers of the polymer-matrix composites when increased from 2.5 to 5.0 wt%, and at the 5.0 wt% MMT loading, the size of MMT became larger. The total weight loss of the ASF/PP/MMT composite decreased as the filler content increased, and the thermal stability increased as the MMT content increased.

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Section: Introductionmentioning

confidence: 99%

Thermal Analysis and Morphological Characterization of Thermoplastic Composites Filled with Almond Shell Flour/Montmorillonite

Hosseinihashemi¹,

Eshghi²,

Ayrılmış³

et al. 2016

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“…Treatments between 200 and 260 °C can cause significant degradation in hemicellulose content of wood, which releases a large amount of acetic acid (Weiland et al 1998). The loss of strength is associated with changes in wood acidity (Hodgin and Lee 2002).…”

Section: Introductionmentioning

confidence: 99%

Effects of Boron Impregnation and Heat Treatment on Some Mechanical Properties of Oak (Quercus petraea Liebl.) Wood

Perçin¹,

Sofuoğlu²,

Uzun³

2015

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Heat treatment changes some physical, mechanical, and chemical properties of wood. Inorganic borates have been used as wood preservatives for many years. The aim of this study was to investigate the effects of impregnation chemicals on some mechanical properties (bending strength (MOR), modulus of elasticity (MOE), tensile strength parallel to the grain (TS), compression strength parallel to the grain (CS), and shear strength parallel to the grain (SS)) of heat-treated oak (Quercus petraea Liebl.). For this purpose, the oak wood specimens were impregnated with 5% aqueous solution of boric acid (BA) and borax (BX). Then specimens were heat-treated at 160, 190, and 220 °C for 2 and 4 h. According to the results of the study, borax retention value was higher than boric acid. The bending strength, modulus of elasticity in bending, tensile strength parallel to the grain, and shear strength parallel to the grain decreased due to heat treatment. The highest mechanical strength losses were determined in samples heat treated at 220 °C for 4 h. Generally the mechanical strength losses of samples impregnated with borax were lower than non-impregnated controls and specimens impregnated with boric acid.

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“…The contact angle decreases after 150 °C, thus evidencing that the wood recovers its hydrophilic nature. Treatments between 200 and 260°C can cause signifi cant degradation in hemicelluloses content of wood, which release a great content of acetic acid (Weiland et al, 1998). The phenolic carboxylic acid and 4-O-methyl-glucuronic and galacturonic acids, produced as a result of the hydrolysis of wood, also contribute to wood acidity (Windeisen et al, 2007).…”

Section: Resultsmentioning

confidence: 99%

Physical, Mechanical and Bonding Performance of Calabrian Pine (Pinus brutia Ten.) as Influenced by Heat Treatment

2017

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Analyse de la pyrolyse menagee du bois par un couplage TG-DSC-IRTF

Cited by 23 publications

References 4 publications

Thermal Analysis and Morphological Characterization of Thermoplastic Composites Filled with Almond Shell Flour/Montmorillonite

Thermal Analysis and Morphological Characterization of Thermoplastic Composites Filled with Almond Shell Flour/Montmorillonite

Effects of Boron Impregnation and Heat Treatment on Some Mechanical Properties of Oak (Quercus petraea Liebl.) Wood

Physical, Mechanical and Bonding Performance of Calabrian Pine (Pinus brutia Ten.) as Influenced by Heat Treatment

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