A SEM study on the use of epoxy functional vegetable oil and reactive UV-absorber as UV-protecting pretreatment for wood

Olsson, Sara; Matsunaga, Hiroshi; Kataoka, Yosuke; Johansson, Mats; Matsumura, Junji; Westin, Mats; Östmark, Emma

doi:10.1016/j.polymdegradstab.2015.01.005

Cited by 9 publications

(7 citation statements)

References 16 publications

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“…Among various epoxidation methods, including the conventional reaction of an alkene with an organic peroxide acid, or methods involving an acid ion exchange resin (AIER) or a metal catalyst, the chemo-enzymatic epoxidation has achieved great interest since this method is non-harmful and environmentally friendly, and its conversion rate is usually over 90% (Tan and Chow 2010). The most commonly used are the epoxidized soybean and linseed oils (ESO and ELO), these being efficiently used to formulate an UV-protection system; the oils are uses as-is or in a combination with 2hydroxy-4(2, 3-epoxypropoxy)-benzophenone (HEPBP) (Olsson 2012;Olsson et al 2015). The epoxidized linseed oil is also efficient as hydrophobic agent in combination with biocides, forming a suitable protective formulation for timber in both above-and inground exposure (Panov and Terziev 2015).…”

Section: Drying Oilsmentioning

confidence: 99%

Natural bio-based products for wood coating and protection against degradation: A Review

Teacă

Roşu

Mustaţă

et al. 2019

BioRes

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Preservation of wood structures against degradation represents an old, and however, a new challenge. Wood, as a natural hybrid composite material, represents a versatile and widely exploited renewable resource for indoor and outdoor applications. Its constitutive biopolymers are subjected to intense and progressive oxidative degradation processes under environmental conditions of exposure, affecting wood’s native durability and generating significant structural and color changes, along with progressive diminution of its resistance against biological agents. One effective way to prevent wood degradation is to apply coating protective layers by chemical modification of the surface. In this context, increasing interest for improving wood coatings behavior under exposure to outdoor applications, when these are able to prevent or limit to a large extent the deleterious effects of environmental factors upon their performance, justifies enhanced research efforts to provide new effective solutions for sustainable wood protection. Recent trends in this area include use of bio-based natural products – extractives, oils, waxes, resins, biopolymers, biological control agents – for which the main classification criterion is represented by the type of protection provided, considering the large available variety of such formulations. The present paper focuses on the most recent literature data with significant assessment of specific topics related to these issues.

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Section: Drying Oilsmentioning

confidence: 99%

Natural bio-based products for wood coating and protection against degradation: A Review

Teacă

Roşu

Mustaţă

et al. 2019

BioRes

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“…Furthermore, the Raman peaks in Figure (b) around 1335 cm −1 (D‐band, diamond‐band) and 1590 cm −1 (G‐band, graphite‐band) correspond to the defective sp 2 (sp 3 ) and crystalline sp 2 structures . The I G /I D values of the ACs are calculated (Supporting Information Figure S2) to be 0.84–1.00 for the ACs (Figure b), which is slightly increased with the activating time increasing from 2 h to 32 h. The I G /I D value (1.00) of the activated carbon with 32‐h self‐activation shows the relatively highly graphitized structure on the carbon surface (20 nm depth of X‐ray for Raman tests), offering good electric conductivity and benefiting the performance of LIB …”

Section: Resultsmentioning

confidence: 95%

Pine Wood Extracted Activated Carbon through Self‐Activation Process for High‐Performance Lithium‐Ion Battery

et al. 2016

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Self-activation is an ecological friendly and inexpensive process for the fabrication of large scale activated carbon (AC), which precludes the use of activating agents and takes advantage of the emitted gases from the simple pyrolysis of pine wood to stimulate the converted carbon. The tailoring of process parameters such as dwelling time assists in optimizing the pore size distribution comprised of meso-and micropores, offering favorable physical properties including specific surface area of 2738 m 2 g À1 and specific pore volume of 2.209 cm 3 g À1 for supe-rior electrochemical performance of Li-ion batteries. The ACbased anode shows a high cycling stability with a reversible specific capacity of 384 mAh g À1 at 1C after 200 cycles, which is close to the theoretical specific capacity of graphite. The finding suggests that the self-activation process, a green, scalable, and efficient process, has great potential to be developed into next-generation high-performance electrode materials for electrochemical energy storage devices.[a] Dr.

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“…The most used method for oil chemical modification is epoxidation, and the most commonly used epoxidized oils are epoxidized soybean and linseed oils (ESO and ELO). These oils have been used successfully alone or in combination with an absorber to formulate the UV system 2-hydroxy-4(2, 3-epoxypropoxy)-benzophenone (HEPBP) [ 64 , 141 ]. Epoxidized soybean oil applied to chemically modified wood with succinic anhydride exhibited efficient wood protection against UV light [ 142 ].…”

Section: Treatments Of Wood With Inorganic Metal Compounds and Bio-based Water Repellentsmentioning

confidence: 99%

Enhancing Weathering Resistance of Wood—A Review

Jirouš-Rajković

Miklečić

2021

Polymers

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Wood is a truly sustainable and aesthetically pleasant material used in indoor and outdoor applications. Every material, including wood, is expected to have long-term durability and to retain its original appearance over time. One of the major disadvantages of wood is the deterioration of its surface when exposed outdoors, known as weathering. Although weathering is primarily a surface phenomenon, it is an important issue for wood products as it affects their appearance, service life, and wood-coating performance. To encourage the use of wood as a material for joinery and other building components, the results of research into increasing the weathering resistance of wood are extremely significant. The development of weathering protection methods is of great importance to reduce the maintenance requirements for wood exposed outdoors and can have a major environmental impact. There are various methods of protecting wood surfaces against weathering. This paper provides a literature survey on the recent research results in protecting wood from weathering. The topics covered include surface treatments of wood with photostabilizers; protection with coatings; the deposition of thin film onto wood surfaces; treatments of wood with inorganic metal compounds and bio-based water repellents; the chemical modification of wood; the modification of wood and wood surfaces with thermosetting resins, furfuryl alcohol, and DMDHEU; and the thermal modification of wood.

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A SEM study on the use of epoxy functional vegetable oil and reactive UV-absorber as UV-protecting pretreatment for wood

Cited by 9 publications

References 16 publications

Natural bio-based products for wood coating and protection against degradation: A Review

Natural bio-based products for wood coating and protection against degradation: A Review

Pine Wood Extracted Activated Carbon through Self‐Activation Process for High‐Performance Lithium‐Ion Battery

Enhancing Weathering Resistance of Wood—A Review

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