关键词: 表面活性剂, 超润湿剂, 超润湿机理, 农药, 表面活性剂, 超润湿剂, 超润湿机理, 农药

Abstract: Superspreader is a kind of pesticide agent，which can significantly increase the coverage area of pesticide solution on the surface of the plant leaf，and improve the utilization efficiency of the pesticide and the yield of crop. Trisiloxane polyoxyethylene surfactants with particular structure exhibits rapid spreading of pesticide solutions on low-energy plant surfaces，often called “superspreading”，has attracted considerable interest from chemists because of its theoretical and practical implications. In this paper，various theories have been presented to explain the superspreading behavior of the trisiloxane aqueous solution on low-energy hydrophobic surfaces. In this article，microstructure and wettability of the plant surface are reviewed，to study the superspreading mechanism，the influence of the structure of surpespreader，the change of the phase behavior and structures of surfactant aggregates in bulk solutions，different substrate hydrophobicity，marangoni effect of the surface tension gradients，and autophilic spreading on its superwettability are also discussed. In addition，problems existed in this research field and the prospect of superspreading mechanism are also given，which is providing a theoretical basis and guidance for the design and synthesis of surperspreader and its superspreading mechanism.

Key words: Surfactant, Superspreader, Superspreading mechanism, pesticide, surfactant, superspreader, superspreading mechanism, pesticide