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首页> 外文期刊>Wood and Fiber Science >THE EFFECTS OF COPPER-BASED PRESERVATIVE TECHNOLOGIES ON THE RESISTANCE OF ASPEN STRANDBOARDS TO BIOLOGICAL DEGRADATION
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THE EFFECTS OF COPPER-BASED PRESERVATIVE TECHNOLOGIES ON THE RESISTANCE OF ASPEN STRANDBOARDS TO BIOLOGICAL DEGRADATION

机译：基于铜的防腐技术对ASPEN主板抗生物降解性的影响

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Mold and decay resistance of aspen strandboards treated with various copper-based preservative systems were evaluated in laboratory tests. Five copper-based chemicals or zinc borate were blended into the aspen furnish at three retention levels. Tebuconazole or 4,5-dichloro-2-N-octyl-4-isothiazolin-3-one (DCOI) were added as cobiocides to selected copper-based treatments. Panels were inoculated with four common molds and subjected to high temperature and humidity for 8 wk according to AWPA Standard E24. Most panels experienced extensive mold growth, but panels treated with DCOI had marked resistance to attack as did combinations of copper-based preservatives and DCOI. Panels were also assessed for decay resistance in a laboratory soil-block test against the brown-rot fungus Gloeophyllum trabeum or the white-rot fungus, Trametes versicolor, according to AWPA Standard E10. All preservatives reduced weight losses caused by G. trabeum or T. versicolor below 10%, except for micronized copper hydroxide orDCOI alone. The four other copper-based preservatives performed well independently and with the addition of DCOI or tebucona-zole. The results suggest that incorporating combinations of copper-based preservative systems with organic cobiocides improveddecay and mold resistance of aspen-oriented strandboard.
机译：在实验室测试中评估了用各种铜基防腐剂系统处理过的白杨刨花板的耐霉菌性和耐腐烂性。将五种铜基化学品或硼酸锌以三种保留水平掺入白杨配料中。将戊唑醇或4,5-二氯-2-N-辛基-4-异噻唑啉-3-酮（DCOI）作为杀菌剂添加到选定的铜基处理剂中。根据AWPA标准E24，用四个普通模具接种面板，并使其经受高温和高湿8 wk。大多数面板经历了霉菌的大量生长，但是用DCOI处理的面板与铜基防腐剂和DCOI的组合一样，具有明显的抗侵蚀能力。根据AWPA标准E10，还通过实验室土壤阻隔性试验评估了板对褐腐真菌球根Gloglophyl trabeum或白腐真菌Trametes versicolor的抗腐性。所有防腐剂均减少了由于小于10％的小球菌或杂色革霉菌引起的重量损失，除了单独的微粉化氢氧化铜或DCOI。其他四种基于铜的防腐剂在添加DCOI或戊丁康唑的情况下均表现良好。结果表明，将铜基防腐剂系统与有机杀菌剂结合使用可改善白杨定向刨花板的腐烂性和抗霉性。

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