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Decay, insect, and termite resistance of wood modified with epoxidized vegetable oils
Holzforschung ( IF 2.2 ) Pub Date : 2021-03-01 , DOI: 10.1515/hf-2019-0318
Gaye Kose Demirel 1 , Ali Temiz 1 , Sabrina Palanti 2 , Nasko Terziev 3
Affiliation  

Samples of Scots pine sapwood were treated with epoxidized linseed and soybean oils to improve decay, insect and termite resistance of wood. Non-epoxidized (raw) linseed and soybean oils were included as reference treatment in the study. In the epoxidation process, hydrogen peroxide was used to open double bounds, and acetic acid was added as a catalyst. Two retention levels, Ret A (80–140 kg m −3 ) and Ret B (170–270 kg m −3 ), two impregnation methods (full cell and empty cell) and emulsion technique were used. Samples treated with epoxidized oils had significantly lower mass losses than untreated samples while epoxidized oils showed higher mass losses than unepoxidized oils for Coniophora puteana and Trametes versicolor according to EN 113 for decay test. By adding boron, fungicidal properties were introduced to the treatment. All the vegetable oils showed 100% the mortality rate against larvae of Hylotrupes bajulus according to EN 47. Moreover, leached wood samples treated with oils also showed 100% larvae mortality. Additionally, termite testing based on EN 117 revealed 100% Reticulitermes lucifugus mortality for all leached oil treated samples.

中文翻译:

用环氧化植物油改性的木材的耐腐烂,防虫和防白蚁性能

用环氧化亚麻籽油和大豆油处理苏格兰松材边材样品,以提高木材的耐腐性,抗虫性和抗白蚁性。非环氧化亚麻籽油和豆油作为研究的参考处理。在环氧化过程中,使用过氧化氢打开双键,并添加乙酸作为催化剂。使用了两种保留水平,即Ret A(80–140 kg m -3)和Ret B(170–270 kg m -3),两种浸渍方法(全孔和空孔)和乳液技术。根据腐烂试验的EN 113标准,用环氧化油处理过的样品的质量损失明显低于未经处理的样品,而环氧化油显示的腐烂度高于Conophora puteana和Trametes versicolor的质量损失。通过添加硼,将杀真菌特性引入处理中。根据EN 47,所有植物油均显示出对百子莲幼虫的死亡率为100%。此外,用油处理过的沥滤木材样品也显示出100%的幼虫死亡率。此外,根据EN 117进行的白蚁测试显示,所有沥滤油处理样品的白蚁死亡率均为100%。
更新日期:2021-03-16
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