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首页> 外文期刊>Journal of Applied Polymer Science >Controlled release of biocides in solid wood. III. Preparation and characterization of surfactant-free nanoparticles
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Controlled release of biocides in solid wood. III. Preparation and characterization of surfactant-free nanoparticles

机译：实木中杀菌剂的控制释放。三，无表面活性剂纳米粒子的制备与表征

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Polymeric nanoparticles containing the fungicides tebuconazole and chlorothalonil were prepared by a simple, surfactant-free method and found to have significantly smaller median particle diameters and more stable aqueous suspensions than their surfactant-stabilized counterparts. These more stable suspensions were delivered into southern yellow pine and birch wood with greater efficiency than the equivalent surfactant-stabilized nanoparticle suspensions. We found that the suspensions protected the treated wood against fungal attack by Gloeophyllum trabeum, a common brown rot wood decay fungus, and Trametes versicolor, a common white rot wood decay fungus, at low tebuconazole and chlorothalonil contents in the wood. Southern pine lost 5% or less of its mass after 55 days of exposure to G. trabeum when the tebuconazole or chlorothalonil content in the wood was only 0.4 kg/m(3), while a tebuconazole or chlorothalonil content of 0.8 kg/m(3) in birch wood was sufficient to bring its mass loss to less than 5% after 55 days of exposure to T. versicolor. (C) 2002 Wiley Periodicals, Inc. [References: 4]
机译：含有杀菌剂戊丁康唑和百菌清的聚合物纳米粒子是通过一种简单的，无表面活性剂的方法制备的，发现它们的中值粒径明显小于其表面活性剂稳定的对应物，水悬浮液的稳定性也更高。与等效的表面活性剂稳定的纳米颗粒悬浮液相比，这些更稳定的悬浮液以更高的效率被输送到南部的黄松和桦木中。我们发现，悬浮液可在木材中戊丁康唑和百菌清含量较低的情况下，保护处理过的木材免受Gloeophyllum trabeum（一种常见的褐腐木腐烂真菌）和Trametes versicolor（一种常见的白腐木腐烂真菌）的真菌侵害。当木材中的tebuconazole或百菌清含量仅为0.4 kg / m（3），而tebuconazole或百菌清含量为0.8 kg / m（5）时，南方松在暴露于G.trabeum后损失了其质量的5％或更少（3）。 3）在桦木中，足以使其在暴露于杂色云杉55天后的质量损失小于5％。 （C）2002 Wiley Periodicals，Inc. [参考：4]

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