An investigation of accelerated temperature-induced ageing of four wood species: colour and FTIR

Liu, Xin You; Timar, Maria Cristina; Varodi, Anca Maria; Sawyer, Gervais

doi:10.1007/s00226-016-0867-4

Cited by 55 publications

(24 citation statements)

References 37 publications

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“…Solid symbols represent the initial hue values while empty symbols denote the same relations as a function of increasing treatment time from left to right. The extractives contribute mostly to temperature-induced colour changes of wood by formation of various conjugated double bonds, carbonyl functionalities and quinoid structures (Liu et al 2017). The initial redness of the specimens was low, 2.36 and 2.58 for heartwood and sapwood, respectively.…”

Section: Resultsmentioning

confidence: 98%

Colour modification of poplar wood by steaming for brown colour

Banadics

Tolvaj

2019

Eur. J. Wood Prod.

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The colour change of poplar was evaluated after exposure to a wide range of steaming parameters (90-110 °C, 1-20 days) for getting brown colour for indoor applications. The generated brown colour was homogeneous throughout the whole cross section. The colour saturation can be doubled by steaming. Steaming increased both redness and yellowness values and reduced the lightness. The initial redness value was multiplied 4.5 times.

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Section: Resultsmentioning

confidence: 98%

Colour modification of poplar wood by steaming for brown colour

Banadics

Tolvaj

2019

Eur. J. Wood Prod.

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“…Information regarding the wood degradation can be obtained based on composition, functional groups, and molecular structure [52,58,59]. The degradation mechanism depending on the wood chemical composition (hemicellulose, lignin, and extractives content) is reflected in the chemical changes regarding the reduction of OH groups, increasing of unconjugated carbonyl groups, and formation of aromatic carbonyl conjugated groups as quinoid structures [60] ( Table 1) (Figure 3).…”

Section: Study Casementioning

confidence: 99%

Polymeric Micro- and Nanosystems for Wood Artifacts Preservation

Ion¹,

Grigorescu²,

Iancu³

et al. 2018

New Uses of Micro and Nanomaterials

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The complex methods of diagnosis investigation of the wood artifacts state and proper materials for their protection against decay are very important goals in cultural heritage. This chapter focuses on the recent trends in micro-and nanostructured polymer systems for application in cultural heritage and on wood preservation, especially. The synthesis, properties, and applications, as well as the relevant analysis techniques to reveal the structures and properties of polymer systems, are discussed, too. To overcome the specific problems that exist for wood artifacts, some aspects should be treated: effects of the environmental factors, as moisture and pollutant absorption into the wood fibers, over-exposure effect of sun or artificial light sources, biological attack of different microorganisms, and the effects of the protective and decorative coatings.

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“…The absorption bands at 3425, 1630, and 1380 cm -1 corresponded to the bands of the O-H bond, O-H bending vibration, and C-H deformation, respectively. Most of the peaks represent major cell wall components in the wood such as cellulose (1164, 895 cm -1 ), hemicelluloses (1737, 1108, 1053 cm -1 ), and lignin (1596, 1502, 1233 cm -1 ) [27,28]. The absorption peak of biomimetic wood at 2965 cm -1 was due to the -CH 3 asymmetric from PDMS.…”

Section: Resultsmentioning

confidence: 96%

Biomimetic taro leaf-like films decorated on wood surfaces using soft lithography for superparamagnetic and superhydrophobic performance

et al. 2017

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The surfaces of plants represent multifunctional interfaces between the organisms and the environment. In this paper, biomimetic taro leaf-like structures with superparamagnetic and superhydrophobic performances were exactly copied on the wood surface through the soft lithography to improve the wood properties. Fe 3 O 4 nanoparticles were mixed into poly(dimethylsiloxane) PDMS suspensions to obtain Fe 3 O 4 /PDMS suspensions that commonly endow coats magnetic and microwave absorption properties, which were then cast onto the wood surface and packaged by PDMS stamps replicated from fresh taro leaves. Fe 3 O 4 /PDMS films, which coexisted superhydrophobic surface and superparamagnetic property, were created on the wood surface after the being dried and stamps were peeled off. The as-prepared wood surface exhibited unique taro leaf-like micro-and nanostructures, microwave absorption, superparamagnetism performances with maximum saturation magnetization (M s ) of 22.9 emu g -1 and superior static superhydrophobicity with a water contact angle of 152°± 2°. This research may provide a feasible pathway for constructing naturally biomorphic structures on the wood surface with tailored functions.

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An investigation of accelerated temperature-induced ageing of four wood species: colour and FTIR

Cited by 55 publications

References 37 publications

Colour modification of poplar wood by steaming for brown colour

Colour modification of poplar wood by steaming for brown colour

Polymeric Micro- and Nanosystems for Wood Artifacts Preservation

Biomimetic taro leaf-like films decorated on wood surfaces using soft lithography for superparamagnetic and superhydrophobic performance

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