皮克林乳液
环境友好型
硫丹
触变性
纳米纤维
两亲性
化学工程
杀虫剂
材料科学
乳状液
纳米技术
化学
纳米纤维素
有机化学
纤维素
工程类
聚合物
生态学
生物
共聚物
作者
Yue Ma,Yuxia Gao,Xin Zhao,Yanqiu Zhu,Fengpei Du,Jun Hu
标识
DOI:10.1002/chem.201801619
摘要
Abstract The abuse of chemical surfactants in pesticide formulations is a potential threat to agricultural development and environmental safety. Thereby, developing an efficient eco‐friendly pesticide formulation is of great significance. In this research, a biocompatible and ultrastable pesticide formulation has been developed in which merely 1 wt % natural glycyrrhizic acid (GA) was used to emulsify and stabilize 80 wt % agricultural oils. During the preparation process, amphiphilic GA molecules initially self‐assembled into 1D nanofibers with a favorable surfactivity, and then afforded GA‐based Pickering emulsions with fine droplets. Consequently, the Pickering emulsions transformed into gel‐like Pickering emulsions as a result of the formation of a 3D network of nanofibers. On account of the unique chemical structure and admirable assembly behavior of GA, the gel‐like Pickering emulsions exhibit ultrastability, thixotropy, and broad pH resistance. In addition, this formulation was investigated for its potential application to pesticides by using pure carbosulfan as the oil phase; up to 60 wt % carbosulfan could be coated, which is more than in the current commercial formulations. This work not only provides new insights into the application of natural biosurfactants to pesticides, but also proposes a biocompatible and eco‐friendly pesticide formulation for use in ecological agriculture.
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