Engineering better sprays for leaf coating: from drop impact to retention

该提案旨在了解一种独特的流变改性剂的性能，该流变改性剂可以使气溶胶喷雾的涂布效率增加一个数量级，同时不影响喷雾过程中液滴形成的质量。这种效应通过纤维颗粒在水中的分散网络发生，通过响应性地调整其结构提供了弱但有用的涂覆表面的能力。该材料有望实现广泛的应用，从农业治疗到鼻喷雾剂，通过在远低于常规改性剂所需的浓度下表现出响应行为。该项目将研究该系统在单液滴、喷雾和涂层形式以及主动输送系统中的响应性。

This proposal aims to understand the performance of a unique rheological modifier that can enable an order of magnitude increase in coating efficiency for aerosol sprays while not affecting the quality of droplet formation during spraying. The effect occurs via a dispersed network of fibrous particles in water, providing a weak but useful ability to coat surfaces by responsively adjusting its structure. The material is expected to enable a broad array of applications, from agricultural treatments to nasal sprays, by exhibiting responsive behaviour at concentrations much lower than conventional modifiers require. The project will study the responsiveness of the system in single droplet, spray, and coating form as well as an active delivery system.