Wax treatment of wood slows photodegradation

Lesar, Boštjan; Pavlič, Matjaž; Petrič, Marko; Škapin, Andrijana Sever; Humar, Miha

doi:10.1016/j.polymdegradstab.2011.04.006

Cited by 84 publications

(48 citation statements)

References 21 publications

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“…The weathering process is generally initiated by sunlight (UV irradiation) and its rate is enhanced by temperature, moisture, environmental pollutants and oxidative agents such as oxygen and/or ozone which are present in the outdoor environmental (Pandey 2005, Lesar et al 2011. The rate of wood degradation in outdoor applications might also be affected by wood composition, as the presence of extractives and lignin, and wood specie (Cui et al 2004, Pandey 2005, Lesar et al 2011.…”

Section: Introductionmentioning

confidence: 99%

“…The rate of wood degradation in outdoor applications might also be affected by wood composition, as the presence of extractives and lignin, and wood specie (Cui et al 2004, Pandey 2005, Lesar et al 2011.…”

Section: Introductionmentioning

confidence: 99%

“…The degradation process initiates with the formation of free radicals by a combined action of UV irradiation and environmental conditions that attacks compounds in the extractives and depolymerise lignin and cellulose in the wood cell wall (Pandey 2005, Lesar et al 2011. Wood contains several chromophoric functional groups associated with an aromatic skeleton, which makes wood susceptible to absorb light (Lesar et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…All wood chemical constituents can be affected by UV irradiation, however lignin is the most sensitive (Pandey 2005, Lesar et al 2011. Among different wood components, lignin absorbs between 80% and 95% of the total UV irradiation due to its various reactive groups, such as hydroxyl groups, carboxyl groups, aromatic and phenolic groups and carbonyl groups (Lesar et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…As a result, weathering reduces service life of wood and also increases maintenance cost (Lesar et al 2011). …”

Section: Introductionmentioning

confidence: 99%

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Comparative study of wood flour photodegradation of two wood species submitted to artificial weathering

Poletto

2017

Maderas, Cienc. tecnol.

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In this work Eucalyptus grandis and Dipteryx odorata were submitted to photodegradation by ultraviolet radiation. The effect of ultraviolet radiation irradiation on the color change and chemical composition of each wood flour were evaluated. The samples were submitted to a total of 500h of artificial weathering using condensation stages and ultraviolet radiation B irradiation cycles. The changes in wood flour color were monitored by spectrocolorimetry, while the changes in wood chemical composition were evaluated by Fourier transform infrared spectroscopy. Both species showed changes in color with increased exposure time to artificial weathering. For both wood species the variation in color change was considered very appreciable after 500h. The Eucalyptus grandis specie showed appreciable color change after 120h, while for Dipteryx odorata specie the color change is appreciable only after 240h. The Fourier transform infrared spectroscopy results showed that lignin was strongly degrades by ultraviolet radiation radiation in both species. However, Dipteryx odorata was more resistant to photodegradation than Eucalyptus grandis, probably due to lower lignin content in this wood. The results clearly indicated that for the wood species studied the rate of weathering is influenced by wood species.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…As a result, weathering reduces service life of wood and also increases maintenance cost (Lesar et al 2011). …”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Comparative study of wood flour photodegradation of two wood species submitted to artificial weathering

Poletto

2017

Maderas, Cienc. tecnol.

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Chemical Protection of Wood

2016

Wood Deterioration, Protection and Maintenance

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Bioinspired Wood Nanotechnology for Functional Materials

2018

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It is a challenging task to realize the vision of hierarchically structured nanomaterials for large-scale applications. Herein, the biomaterial wood as a large-scale biotemplate for functionalization at multiple scales is discussed, to provide an increased property range to this renewable and CO -storing bioresource, which is available at low cost and in large quantities. The Progress Report reviews the emerging field of functional wood materials in view of the specific features of the structural template and novel nanotechnological approaches for the development of wood-polymer composites and wood-mineral hybrids for advanced property profiles and new functions.

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Wax treatment of wood slows photodegradation

Cited by 84 publications

References 21 publications

Comparative study of wood flour photodegradation of two wood species submitted to artificial weathering

Comparative study of wood flour photodegradation of two wood species submitted to artificial weathering

Chemical Protection of Wood

Bioinspired Wood Nanotechnology for Functional Materials

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