宋小沫,奚溪,薛士东,赵峻逸,韩敬坤,马学虎,兰忠,郝婷婷

• 1:大连理工大学 化学工程研究所，辽宁省化工资源清洁利用重点实验室，辽宁 大连 116024

摘要(Abstract)：

雾滴蒸发飘移是农药利用率低下的重要原因之一，喷雾助剂的使用是减少蒸发飘移的主要方法，但目前助剂溶液的蒸发规律及抗蒸发机理尚未明确。为了探究喷雾助剂对雾滴蒸发过程的影响，研究以水和植物油类助剂倍达通、矿物油类助剂迈道、非离子型表面活性剂Silwet408这3类喷雾助剂为对象，通过可控温控湿的单雾滴蒸发实验平台模拟农药施药条件，采用悬滴法考察各助剂溶液的蒸发特性。结果表明，倍达通、迈道和Silwet408这3种助剂的蒸发抑制能力随相对湿度升高而减弱，随环境温度升高先增强后减弱，分别在30、30、28℃达到最佳蒸发抑制效果。此外，还测试了4种典型气象条件下各类助剂的蒸发抑制能力，并从蒸发角度提供了助剂选择参考。

关键词(KeyWords)： 单液滴;蒸发;农药助剂;悬滴法;传递过程

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划（2017YFD0200304）。

作者(Author): 宋小沫,奚溪,薛士东,赵峻逸,韩敬坤,马学虎,兰忠,郝婷婷

DOI: 10.3969/j.issn.1003-9015.2020.05.007

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