Improvement of wood against UV weathering and decay by using plant origin substances: Tannin acid and tung oil

Peng, Yao; Wang, Yujiao; Zhang, Runhua; Wang, Wen; Cao, Jinzhen

doi:10.1016/j.indcrop.2021.113606

Cited by 32 publications

(12 citation statements)

References 46 publications

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“…The results may have been influenced by this feature of lignin. There are also previous studies reporting the effect of fungi on the gloss value of wood and wood-based products (Can and Sivrikaya 2019;Peng et al 2021).…”

Section: Gloss Changementioning

confidence: 97%

Antifungal effects of staining process on wood: Hardness, gloss, and color change

Budakçı

Korkmaz

Karal

2022

BioRes

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This study determined the effects of wood staining on wood-destroying fungi. To achieve this goal, different types of wood samples were used, including Scotch pine (Pinus sylvestris L.), Eastern beech (Fagus orientalis Lipsky), sessile oak (Quercus petraea Liebl.), and mahogany (Entandrophragma cylindricum). Aniline (C6H2NH2), chemical (tannin (C14H10O9) + potassium dichromate (K2Cr2O7)), and Van Dyke brown stains (Fe2O3MnO2 + K2Cr2O7 + H2O) were applied to the samples, because a walnut color (brown) is preferred by customers. The stained samples were exposed to Fomitopsis palustris and Coriolus versicolor, and mycelium growing on wood was observed for 3 months. Hardness, gloss, and total color change tests were applied to the samples to determine the antifungal effects. The results showed that staining increased the total color change values of the wood, while decreasing in the gloss and hardness values. The chemical stain showed antifungal effects against both fungi.

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Section: Gloss Changementioning

confidence: 97%

Antifungal effects of staining process on wood: Hardness, gloss, and color change

Budakçı

Korkmaz

Karal

2022

BioRes

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“…Meanwhile, the C-C stretching vibration at 1245cm − 1 and 1185cm − 1 became stronger after UV irradiation. These changes indicated that cellulose became the main component of the wood samples with the degradation of lignin (Peng et al 2021). There were no obvious changes at 1035cm − 1 , which was C-O stretching in cellulose and hemicellulose (Huang et al 2013) Different impregnated wood samples showed individual degrees absorption peaks.…”

Section: Ftir Analysismentioning

confidence: 99%

Application of nano SiO 2 -IPBC microcapsules in the anti-mildew and UV- resistance of rubber wood

Shaoshan

2023

Preprint

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Recent advances addressing the development of anti-mildew and UV-resistance microcapsules for wood. IPBC is enclosed in the drug-loaded carriers, through slow release, resulting in the anti-mildew process. Anti-mildew experiments showed that the control effectiveness of 1.25wt% nano SiO2-IPBC microcapsules was 78.125% against Botryodiplodia theobromae. In addition, a novel angle of view is discussed, which is the UV-resistance, including different mass fraction of nano SiO2-IPBC microcapsules, IPBC and the control group. Different FTIR characterizations and surface color related to impregnated wood samples are discussed. Nano SiO2-IPBC microcapsules had better bonding performance and UV-resistance than IPBC due to the synergistic effect of nano SiO2 and IPBC in the microcapsules. Color measurements showed that the UV-resistance of microcapsules was better than 1.25wt% IPBC impregnated wood samples. It helps us open new horizons to anti-mould agent, which offers multi-function of great anti-mildew effect and excellent UV-resistance. The simple and green method for the preparation of microcapsules would have tremendous potential for the extensive development of wood protection.

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“…These stabilisers also work well in WPCs that also undergo UV-induced discolouration and loss of mechanical integrity [ 111 ]. Bark extractives from Western red cedar ( Thuja plicata ) at 2 wt% mixed into bulk wood-plastic showed good stabiliser effectiveness, yielding about 25% less discolouration at 1200 h of accelerated weathering, with less severe surface cracking and chemical degradation as indicated by Fourier transform infrared spectroscopy [ 1 ].…”

Section: Wood In Building Applicationsmentioning

confidence: 99%

“…The materials industry is continuously researching more efficient and lower cost UV-stabiliser systems for wood and plastics. In recent years, this search has been increasingly guided by long-term sustainability considerations that encourage the preferred development of ‘greener’ additives, such as natural UV stabilisers in place of conventional synthetic additives for both plastics and wood [ 1 ]. Using nanoparticles (NPs) as stabiliser/fillers in coatings, plastics, or textile fibres, which results in efficient light-shielding at very low fractions, is an especially promising development in new stabilisers.…”

Section: Introductionmentioning

confidence: 99%

Effects of UV radiation on natural and synthetic materials

Andrady

Heikkilä

Pandey³

et al. 2023

Photochem Photobiol Sci

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The deleterious effects of solar ultraviolet (UV) radiation on construction materials, especially wood and plastics, and the consequent impacts on their useful lifetimes, are well documented in scientific literature. Any future increase in solar UV radiation and ambient temperature due to climate change will therefore shorten service lifetimes of materials, which will require higher levels of stabilisation or other interventions to maintain their lifetimes at the present levels. The implementation of the Montreal Protocol and its amendments on substances that deplete the ozone layer, controls the solar UV-B radiation received on Earth. This current quadrennial assessment provides a comprehensive update on the deleterious effects of solar UV radiation on the durability of natural and synthetic materials, as well as recent innovations in better stabilising of materials against solar UV radiation-induced damage. Pertinent emerging technologies for wood and plastics used in construction, composite materials used in construction, textile fibres, comfort fabric, and photovoltaic materials, are addressed in detail. Also addressed are the trends in technology designed to increase sustainability via replacing toxic, unsustainable, legacy additives with ‘greener’ benign substitutes that may indirectly affect the UV stability of the redesigned materials. An emerging class of efficient photostabilisers are the nanoscale particles that include oxide fillers and nanocarbons used in high-performance composites, which provide good UV stability to materials. They also allow the design of UV-shielding fabric materials with impressive UV protection factors. An emerging environmental issue related to the photodegradation of plastics is the generation of ubiquitous micro-scale particles from plastic litter exposed to solar UV radiation. Graphical abstract

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Improvement of wood against UV weathering and decay by using plant origin substances: Tannin acid and tung oil

Cited by 32 publications

References 46 publications

Antifungal effects of staining process on wood: Hardness, gloss, and color change

Antifungal effects of staining process on wood: Hardness, gloss, and color change

Application of nano SiO 2 -IPBC microcapsules in the anti-mildew and UV- resistance of rubber wood

Effects of UV radiation on natural and synthetic materials

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