介导的界面聚合深度的穿效应调节的农药装载微的应用性能
Tao Zhang1, Hongzhen Sun1, Liyuan Yang1
1Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China.
ACS nano
|October 6, 2023
概括
通过控制核心的水友性,可以改善水溶性尼马杀菌剂 (如亚) 的微封装. 这增强了贝结构,减少了环境的浸,并增加了根区的保留,以更好地控制害虫.
科学领域:
- 农业化学 农业化学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 溶于水的杀虫剂,如亚酸盐,需要微封装以改善根留力和防止地下水污染.
- 微囊 (MC) 形成的机制受到核心水友性的影响并未得到充分理解,这阻碍了水溶性活性成分的封装.
研究的目的:
- 通过研究界面质量转移对外演变的影响,阐明微的微层形成机制.
- 提出一种调节水溶性核心材料微囊外结构的方法.
主要方法:
- 研究了核心水友性对界面质量转移和聚合反应区域的影响.
- 使用不同的溶剂系统 (溶剂油150#与乙酸和溶剂油150#) 进行微囊外厚度和性能比较.
主要成果:
- 增强的核心水友性增加了穿效应,扩大了聚合区,并导致更厚,更宽松的外.
- 调节外结构的微囊 (MCs-P2S1) 的外厚度是标准微囊 (MCs-SOL) 的 5.2 倍.
- 更厚,更紧的外降低了酸盐的释放率和浸出距离 (8cm对于MCs-SOL),提高了疗效 (87.3%对线虫).
结论:
- 微囊外厚度和紧度可以通过操纵接口穿效应来调节.
- 这种方法提供了一种有希望的策略,可以提高水溶性农药的效率,同时最大限度地降低环境风险.
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