Control the Entire Journey of Pesticide Application on Superhydrophobic Plant Surface by Dynamic Covalent Trimeric Surfactant Coacervation,Advanced Functional Materials

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Control the Entire Journey of Pesticide Application on Superhydrophobic Plant Surface by Dynamic Covalent Trimeric Surfactant Coacervation
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2020-11-13 , DOI: 10.1002/adfm.202006606
Bin Liu ₁ , Yaxun Fan ₁ , Haofei Li ₁ , Weiwei Zhao ₁ , Siqi Luo ₁ , Hua Wang ₁ , Bo Guan ₁ , Qiaolian Li ₁ , Jiling Yue ₁ , Zhichao Dong _{2,

3} , Yilin Wang ₁ , Lei Jiang _{2,

3}

Affiliation

Vast wastage of pesticides has caused significant environmental pollution and economic loss, which occurs in any step during the entire process of pesticide application. However, the existing strategies for controlling pesticide losses are step specific. Here, a comprehensive strategy to substantively improve pesticide efficiency on the basis of precise designs from beginning to end is developed. A water‐based coacervate with synthesized imine‐based dynamic covalent trimeric surfactants to synergistically control encapsulation, deposition, retention, and release of pesticides on water‐repellent plants is constructed. The coacervate consists of nanosized networks and abundant tightly bonded water, leading to effective encapsulation of hydrophilic/hydrophobic pesticides. Meanwhile, the network‐like microstructure entangles with the micro/nanostructures of superhydrophobic surface, ensuring complete deposition on superhydrophobic plant surface after high‐speed impact and inhibition of wind/rainwater erosion. Moreover, the CO₂‐induced degradative surfactant coacervate determines the precise pesticide release. The dynamic coacervate as an innovative pesticide formula provides a prospective way for pesticide application, and is expected to promote productive and sustainable agriculture.

中文翻译：

动态共价三聚体表面活性剂凝聚控制超疏水植物表面农药施用的整个过程

农药的大量浪费已造成严重的环境污染和经济损失，这在农药施用的整个过程中的任何步骤中都会发生。但是，控制农药损失的现有策略是特定于步骤的。在这里，制定了一种从头到尾的精确设计为基础，从根本上提高农药效率的综合策略。构建了一种水性凝聚层和合成的基于亚胺的动态共价三聚表面活性剂，以协同控制农药在防水植物上的包封，沉积，保留和释放。凝聚层由纳米级网络和大量紧密结合的水组成，可有效包裹亲水性/疏水性农药。与此同时，网络状的微观结构与超疏水表面的微观/纳米结构纠缠在一起，从而确保在高速撞击并抑制风/雨水侵蚀后，在超疏水植物表面上完全沉积。而且，CO₂诱导降解的表面活性剂凝聚层决定了精确的农药释放。动态凝聚层作为一种创新的农药配方为农药的使用提供了一种前途的方法，并有望促进生产性和可持续性农业。

更新日期：2020-11-13

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