Effect of accelerated weathering on surface chemistry of modified wood

Temiz, Ali; Terzıev, Nasko; Eikenes, Morten; Hafrén, Jonas

doi:10.1016/j.apsusc.2006.12.005

Cited by 153 publications

(94 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…5. The C-O stretching in cellulose and hemicellulose at the 1031 cm -1 band, the syringyl lignin and C-O in xylan located at the 1240 cm -1 band, and the C-O-C asymmetric band in the cellulose and hemicellulose peak at the 1161 cm -1 band (Temiz et al 2007) were observed in the heat-treated and untreated alder WPCs. The intensity of the peaks of the HDPE composites filled with the heattreated wood flour decreased at 1162 cm -1 , 1240 cm -1 , and 1740 cm -1 but was higher than those of the HDPE composites filled with untreated wood flour and virgin HDPE.…”

Section: Ftir Spectroscopy Analysismentioning

confidence: 91%

See 1 more Smart Citation

Technological and Thermal Properties of Thermoplastic Composites Filled with Heat-treated Alder Wood

et al. 2016

View full text Add to dashboard Cite

This study investigated the effect of heat-treated wood content on the water absorption, mechanical, and thermal properties of wood plastic composites (WPCs). The WPCs were produced from various loadings (30, 40, and 50 wt%) of heat-treated and untreated alder wood flours (Alnus glutinosa L.) using high-density polyethylene (HDPE) with 3 wt% maleated polyethylene (MAPE) coupling agent. All WPC formulations were compression molded into a hot press for 3 min at 170 ºC. The WPCs were evaluated using mechanical testing, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The mechanical property values of the WPC specimens decreased with increasing amounts of the heattreated wood flour, except for the tensile modulus values. The heat treatment of alder wood slightly increased the thermal stability of the WPCs compared with the reference WPCs. The crystallization degree (Xc) and the enthalpy of crystallization of the WPCs slightly decreased with increasing content of the heat-treated wood flour. However, all WPCs containing the heat-treated alder wood flour showed a higher crystallinity degree than that of the virgin HDPE.

show abstract

Section: Ftir Spectroscopy Analysismentioning

confidence: 91%

“…A syringyl monomer is more likely to be released by thermal degradation (Faix et al 1990). Moreover, the band of 1240 cm -1 showed the lignin syringyl monomer and the C-O in xylan (Nuopponen et al 2004;Temiz et al 2007). The peak intensity at 1240 cm -1 decreased after the heat treatment.…”

Section: Ftir Spectroscopy Analysismentioning

confidence: 99%

Technological and Thermal Properties of Thermoplastic Composites Filled with Heat-treated Alder Wood

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Furfurylation of wood is, therefore, believed to be a safe process for the environment. Accelerated weathering tests show that furfurylation provided lower colour changes than controls after 800 h exposure to UV-light irradiation and water spray (Temiz et al 2007). Surface mould growth on furfurylated, acetylated, oil heattreated and heat-treated wood substrates coated with three different coating systems exposed to outdoor conditions was also investigated (Gobakken and Westin 2008).…”

Section: Furfurylation Treatmentmentioning

confidence: 99%

New alternatives for wood preservation based on thermal and chemical modification of wood— a review

Gérardin

2015

Annals of Forest Science

195

126

View full text Add to dashboard Cite

Key message Increasing environmental pressures appearing over the last few years have led to important changes in the field of wood protection. In this context, new technologies, based either on thermal or chemical modifications, suggest increasing interest in prospect of programmed ban of biocide products.• Context The evolution of the regulations on the use of biocide products has led to important changes in the field of wood preservation, leading to an increasing interest for non-biocide treatments like thermal or chemical modifications to face to the programmed ban of biocide products.• Aims The paper reviews the different non-biocide alternatives developed currently on an industrial scale, highlighting their main characteristics and applications.• Results Different treatments have been developed on an industrial scale involving mainly thermal modifications and acetylation, furfurylation and DMDHEU constituting already available solutions.• Conclusion Different non-biocide alternatives already exist and will become more important in the next decades due to the increasing legislative pressure driven by environmental considerations.

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

Effect of accelerated weathering on surface chemistry of modified wood

Cited by 153 publications

References 17 publications

Technological and Thermal Properties of Thermoplastic Composites Filled with Heat-treated Alder Wood

Technological and Thermal Properties of Thermoplastic Composites Filled with Heat-treated Alder Wood

New alternatives for wood preservation based on thermal and chemical modification of wood— a review

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

Contact Info

Product

Resources

About