Leaching characteristics of homologues of benzalkonium chloride from wood treated with ammoniacal copper quaternary wood preservative

Miyauchi, Teruhisa; Mori, Mitsunori; Imamura, Yuji

doi:10.1007/s10086-007-0933-5

Cited by 13 publications

(4 citation statements)

References 12 publications

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“…Because of a limit of light penetration into wood (Browne 1957), the light weathering is influential up to a 2.5 mm thick surface layer and the erosion progresses slowly at, 5-12 mm per 100 year (Feist and Mraz 1978;Sandberg 1999). Factors which are the most influential to the surface of wood are light and moisture (Chang and Hon 1984;Feist and Hon 1992) (Miyauchi et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Investigation of Color Difference in ACQ and CBHDO Treated Wood During Two-year Outdoor Exposure

Lim¹,

Oh²,

Hong³

et al. 2015

Journal of the Korean Wood Science and Technology

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In general, when wood products are used outdoors for a certain period of time the surface color of wood changes due to light, water, heat and so on. This color change can be considered importantly for the product's market value. In this study, the color change of ACQ (Alkaline Copper Quaternary) and CBHDO (CuO⋅ H3BO3⋅N-cyclohexyldiazenium-anion) treated wood and untreated wood was investigated during 2-year weathering test. From this experimental study, it was found that the colors of the treated wood changed more reddish and yellowish from green. Meanwhile, the untreated wood turned to grey color rapidly. Also, the color of the treated wood in short-term exposure changed closer to the inherent color of the fresh natural wood than that of the untreated woods.

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Section: Introductionmentioning

confidence: 99%

Investigation of Color Difference in ACQ and CBHDO Treated Wood During Two-year Outdoor Exposure

Lim¹,

Oh²,

Hong³

et al. 2015

Journal of the Korean Wood Science and Technology

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“…During this period, the water was changed 9 times in total: every 12 h on day 1, every 24 h on days 2-5, and every 48 h on days 7 to 14, i.e., the water was changed at the beginning of day 1, after 12 h, and at the beginning of days 2, 3, 4, 5, 7, 9, and 11. Each time the water was changed, the leaching medium was also collected [28][29][30]. The water uptake (MCWA) and volume swelling efficiency (VWA) after leaching tests were calculated as follows:…”

Section: Leaching Proceduresmentioning

confidence: 99%

Leachability of Fast-Growing Wood Impregnated with Low Concentrations of Furfuryl Alcohol

Sun,

Gong,

Yan

et al. 2023

Forests

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Furfurylation can effectively improve the quality of fast-growing wood, but its leachability is unclear. In this study, fast-growing poplar (Populus sp.) and Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) were impregnated with low concentrations of 5%–20% furfuryl alcohol (FA), and the chemical and microscopic changes during leaching tests were analyzed by UV spectra and confocal laser scanning microscopy (CLSM). The results show that FA impregnation can regulate the weight percentage gain, but its effectiveness in regulating the cell wall bulking coefficient decreased as the impregnation concentration was increased. Impregnation with 15% and 20% FA showed no significant difference in the effect on volume swelling efficiency. The inverse relationship between the concentration of FA and the leaching rate was demonstrated by leaching tests, UV spectra, and CLSM. Notably, the leaching rate of poplar and Chinese fir wood was more than 30% when impregnated with 5% FA. Although the entirety of the furfuryl alcohol was deposited in the cell wall when impregnated with low concentrations of FA, the binding was not stable. The weight percentage gain of furfurylated Chinese fir was greater than that of poplar, but its leaching rate was lower, indicating that the cured furfuryl alcohol resin in poplar was not as stable as that in Chinese fir. Therefore, differences in tree species should be considered in low-concentration FA impregnation, as the improvement effect of concentrations below 10% on the properties of fast-growing wood is weak and the leaching rate of FA is significant.

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“…With this in mind, many investigative studies have been carried out regarding efforts to prolong the service life of wooden products [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Assessment of decay risk of airborne wood-decay fungi II: relation between isolated fungi and decay risk

et al. 2011

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The relationship between the taxa of airborne fungi and the decay risk was investigated. Airborne fungi in 1,000 l of air were trapped on Japanese cedar disks, and incubated in a damp container kept at 268C. After 16-week incubation, filamentous fungi grown on the disks were isolated and DNA extracted from each isolate was amplified with the primers ITS4/ITS5. The DNA sequences of the amplified products were determined and compared to the sequence data of GenBank to determine the species or genus according to a BLAST search. This search revealed that the isolate consisted of 5 major taxa, namely Bjerkandera sp., Phanerochaete sp. (A), Phanerochaete sp. (B), Polyporales sp. Polyporus arcularius, and 6 minor ones. Statistical analysis revealed that the major taxa were trapped on the disks in similar weather conditions except for Bjerkandera sp., which was trapped at a cooler temperature. The analysis also proved the disks to which Phanerochaete spp. or Polyporales sp. were attached showed higher mass loss. It is concluded that, under these experimental conditions, related species of Phanerochaete sordida play an important role in increasing the decay risk caused by airborne wood-decay fungi.

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Leaching characteristics of homologues of benzalkonium chloride from wood treated with ammoniacal copper quaternary wood preservative

Cited by 13 publications

References 12 publications

Investigation of Color Difference in ACQ and CBHDO Treated Wood During Two-year Outdoor Exposure

Investigation of Color Difference in ACQ and CBHDO Treated Wood During Two-year Outdoor Exposure

Leachability of Fast-Growing Wood Impregnated with Low Concentrations of Furfuryl Alcohol

Assessment of decay risk of airborne wood-decay fungi II: relation between isolated fungi and decay risk

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