Use of totally carbon-based preservatives to improve the performance of naturally durable woods

Cabrera, Yohanna; Morrell, Jeffrey J.

doi:10.1016/j.ibiod.2011.10.015

Cited by 7 publications

(1 citation statement)

References 4 publications

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“…Several types of water-borne organic biocides, known as green wood preservatives, have been developed and applied. ,, As organic biocides undergo rapid degradation when exposed to soils or wood-rot fungi, − it is challenging to provide long-term protection of wood using organic biocides alone. Previous studies have shown that the antioxidant compounds, butylated hydroxytoluene (BHT) and t -butylhydroquinone, are capable of enhancing the efficiency of organic biocides in wood preservation. , This enhanced effect, as speculated previously, , is due to the ability in scavenging free radicals generated by the nonenzymatic system during brown-rot fungal decay.…”

Section: Introductionmentioning

confidence: 99%

Novel and Green System for Protecting Wood against Gloeophyllum trabeum by Combining Biodegradable Isothiazolinone with Nontoxic Chelators

Cheng

et al. 2022

ACS Sustainable Chem. Eng.

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Impregnation with biocides is an efficient approach to prolong the service life of wood materials, but most biocides pose a toxic threat to human health and the environment. This study presents a novel and green system for protecting Masson pine and pond cypress against the brown-rot fungus Gloeophyllum trabeum through a combination of 4,5-dichloro-2-n-octyl-3isothiazolinone (DCOI) and chelators with high iron affinity. As results, both diethyltriaminepentaacetic acid (DTPA) and tetrasodium iminodisuccinate (IDS) reduced the mass losses of Masson pine and pond cypress, but neither chelator inhibited the growth of G. trabeum at a low concentration. The compound system was more efficient in reducing the mass loss of Masson pine compared to DCOI alone. Moreover, the DCOI degradation rate decreased significantly by IDS, suggesting that chelators with high iron affinity can protect organic biocides from degradation. All data supported that the chelators were able to enhance the organic biocide in improving wood decay resistance, and the involved mechanism was mainly due to the restriction on iron-based Fenton chemistry deployed by brown-rot fungi. This study provides valuable insight into the development of environmentally benign techniques to preserve wood.

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