5种三唑微乳液及其铜胺制剂的抗流失性能

The Leachability of Five Kinds of Triazoles and Their Copper Triazole Formulations

【目的】系统分析比较5种三唑制剂处理材中三唑的抗流失性能,为三唑制剂及其铜唑制剂的开发应用奠定基础。【方法】参照国家标准GB/T 29905—2013方法,分别测定5种三唑在微乳液制剂及与铜胺溶液复配的铜/三唑制剂中的抗流失性能,并探讨添加疏水剂对其抗流失性能的影响。【结果】在三唑微乳液制剂中,丙环唑(PPZ)和己唑醇(Hex)的抗流失性能相当且较高,固着率均达70%以上;戊唑醇(TEB)的固着率较PPZ和Hex低;环丙唑醇(CY)的固着率基本在60%~70%之间;三唑醇(Tri)的抗流失性能最差,在本试验中较高载药量下固着率不足60%。不同乳化剂制备的同一三唑微乳液的抗流失性能相当。三唑与铜胺溶液复配后,抗流失性能增强,三唑固着率基本在80%以上,铜的固着率基本在90%以上。添加疏水剂后,5种三唑的抗流失性能均有不同程度提高,其中CY的提高效果最好。【结论】三唑微乳液制剂中,PPZ和Hex的固着率均达70%以上;三唑微乳液中,三唑的抗流失性能受乳化剂的影响不大;与铜胺溶液复配后或添加疏水剂,可提高其抗流失性能。

[ Objective ] In order to improve the durability of exterior wood treated by triazole formulations, the leachability of 5 kinds of emulsified triazoles and their copper triazole formulations was analyzed and compared. [ Method] According to the procedures of GB/T 29905--2013, the leaching properties of 5 kinds of triazole micro-emulsion and their copper amine formulations were determined and compared,and the leaching properties of triazole formulations with 4 kinds of waterproofing agents were also conducted in this paper. [ Result ] The fixation rates of propieonazole （PPZ） and hexaconazole （Hex） were above 70% , and higher than those of other triazoles. The fixation rate of tebuconazole（TEB） was slightly lower than that of PPZ and Hex. The fixation rate of eyproconazole（CY） in treated wood ranged from 60% to 70% , while that of triadimenol （Tri） was less than 60% at the highest retention. There was no significant difference in fixation rate between any two of the same kind of triazoles with different emulsified formulations. After mixed with copper amine, the fixation rates of triazoles were improved and higher than 80% , whereas the fixation rate of copper of Cu amine/ triazoles formulations was more than 90%. [ Conclusion ] The fixation rates of propiconazole （PPZ） and hexaconazole （Hex） were above 70%. The different emulsifiers had less effect on the leachability of triazoles. The fixation rates of triazoles in treated wood could be improved when mixed with copper amine or brushed with waterproofing agents on wood surface.