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有機錫木材保護劑之研究:(一)低汙染有機錫化合物之研製及其性質

Studies on Effective Organotin Compounds against Wood Deterioration. I. Preparation and Characterization of Long Lasting and Low Pollution Organotin Wood Preservatives

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摘要


有機錫化合物具有抗菌性及抗蟲性,從1954年開始已被用爲木材防腐劑。R3SnX類化合物,其抗菌能力端賴R3Sn的性質及構造而定,X基並無明顯的影響,爲繼續發展優良之木材保護劑,我們已完成20種有機錫化合物之合成。其合成法、性質及防腐效能測驗結果,將在本報告中記述。 防腐試驗選用乙酸化三丁烷錫(TBTO)、氧化三丁烷錫(TBTC)、氧化三丁烷錫(TBTO)、苯乙酸化三丁烷錫(TBTP)及丙烯酸化三丁烷錫(TBTAL)等五種有機錫化合物溶於甲醇中,配成0.5%,1.0%及1.5%三種濃度之溶液。試材則採用杉木及柳杉邊材,觀測其耐腐性能,並與CCA4%水溶液處理者相比較。結果證明有機錫化合物具有與CCA相等之防腐能力,且五種有機錫藥劑之間差異很小。試材對有機錫藥劑之吸收率與其溶液之濃度約成正比,腐朽率與濃度成反比,亦即耐腐效應與濃度成正比。

並列摘要


Triorganotin compounds, which possess fungitoxicity and insecticidity were first proposed for use in the field of wood preservation in 1954. The biological activity of R3SnX derivatives is markedly dependent on the nature of R3Sn group, but essentially unaffected by the anionic radical X. In order to develop more effective wood presser-vatives, 20 organotin compounds were synthesized. Five organotins, TBTA, TBTC, TBTO, TBTP, and TBTAL in methanol were prepared in three concentrations of 0.5%, 1.0% and 1.5%. The decay resistances of treated wood samples were investigated and compared to 4% CCA treated samples, Both the synthesis of organotins and their preservative properties are described.

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