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首页> 外文期刊>Environmental toxicology and chemistry >NEW PROMISING ANTIFOULING AGENT BASED ON POLYMERIC BIOCIDE POLYHEXAMETHYLENE GUANIDINE MOLYBDATE
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NEW PROMISING ANTIFOULING AGENT BASED ON POLYMERIC BIOCIDE POLYHEXAMETHYLENE GUANIDINE MOLYBDATE

机译：新型的基于杀菌剂的聚合物二硫化物聚己二酸胍胍钼酸酯

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A new polymeric biocide polyhexamethylene guanidine (PHMG) molybdate has been synthesized. The obtained cationic polymer has limited water solubility of 0.015 g/100mL and is insoluble in paint solvents. The results of acute toxicity studies indicate moderate toxicity of PHMG molybdate, which has a median lethal dose at 48 h of 0.7 mg/L for Daphnia magna and at 96 h of 17 mg/L for Danio rerio (zebrafish) freshwater model organisms. Commercial ship paint was then modified by the addition of a low concentration of polymeric biocide 5% (w/w). The painted steel panels were kept in Dnipro River water for the evaluation of the dynamics of fouling biomass. After 129-d exposure, Bryozoa dominated in biofouling of tested substrates, forming 86% (649 g/m(2)) of the total biomass on control panel surfaces. However, considerably lower Bryozoa fouling biomass (15 g/m(2)) was detected for coatings containing PHMG molybdate. Dreissenidae mollusks were found to form 88% (2182 g/m(2)) of the fouling biomass on the control substrates after 228 d of exposure, whereas coatings containing PHMG molybdate showed a much lower biomass value of 23.6 g/m(2). The leaching rate of PHMG molybdate in water was found to be similar to rates for conventional booster biocides ranging from 5.7 mg/cm(2)/d at the initial stage to 2.2mg/cm(2)/d at steady state. (C) 2017 SETAC
机译：合成了一种新型的高分子杀生物剂聚六亚甲基胍（PHMG）钼酸盐。所得阳离子聚合物的极限水溶性为0.015g / 100mL，并且不溶于涂料溶剂。急性毒性研究的结果表明，PHMG钼酸盐具有中等毒性，对大型蚤（Daphnia magna）在48 h的中位致死剂量为0.7 mg / L，对斑马鱼淡水模式生物的96 h的中位致死剂量为17 mg / L。然后通过添加低浓度的5％（w / w）的聚合杀生物剂对商用船用涂料进行改性。将涂有油漆的钢板保存在第聂伯河水中，以评估结垢生物质的动力学。暴露129天后，Bryozoa在受试基质的生物污垢中占主导地位，在控制面板表面上形成了总生物量的86％（649 g / m（2））。但是，对于含有PHMG钼酸盐的涂料，检测到的Bryozoa结垢生物质较低（15 g / m（2））。发现Dreissenidae软体动物在暴露228 d后占对照基质上污垢生物量的88％（2182 g / m（2）），而含PHMG钼酸盐的涂料的生物量值低得多，为23.6 g / m（2） 。发现PHMG钼酸盐在水中的浸出速率与常规增强杀菌剂的浸出速率相似，范围从初始阶段的5.7 mg / cm（2）/ d到稳态下的2.2mg / cm（2）/ d。 （C）2017年SETAC

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