会议名称：2023世界木材日研讨会暨第五届国际林联（IUFRO）林产品文化研究组讨论会
会议时间：2023年3月21日

报告嘉宾： Andrew H.H. Wong
嘉宾简介： 国际木文化学会马来西亚和东南亚地区协调员

摘要：

Global trend in wood protection research involves developing cost-effective, environmentally acceptable wood treatment solutions for long term carbon storage in wood products (including historical wooden cultural properties) which appeals to consumer needs for such effective treated wood requiring only minimal volumes of preservative solution uptake on to the wood and thus ascertaining a low environmental impact of the treatment process. A 6-month field aboveground termite test in a termite-infested forest locality near Kuching, Sarawak/Malaysia, revealed conclusively that a new generation wood preservative (patented by Groupe Berkem, France), based in part on vegetal extracts (polyphenols) and cypermethrin components, is able to confer long term wood protection against the voracious Coptotermes subterranean termites that are well-known wood destroyers. Prior to termite testing, envelope-treated Malaysian hardwood kempas (Koompassia malaccensis) were subjected to a rigorous laboratory evaporative ageing to simulate severe long term indoor weathering of wood used aboveground, indoors. Reference evaporatively aged envelope-treated kempas employed a commercial light organic solvent (LOS) preservative containing partly permethrin. The termite test results demonstrated irrefutably that kempas without treatment was severely attacked if not totally consumed by Coptotermes curvignathus, but was TOTALLY protected by both the new generation preservative and the reference LOS preservative despite very low surface cypermethrin and permethrin retention from these treatments. This new generation cypermethrin-based preservative therefore can offer considerable long-term anti-termitic protection to all forms of wood products, including historical wooden properties, exposed aboveground indoors. The excellent anti-termitic performance of this new generation wood preservative compares favourably with two other new generation (microemulsion-based permethrin and cypermethrin), preservatives of Groupe Berkem reported elsewhere.

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