Viscosity, surface tension and droplet size of sprays of different formulations of insecticides and fungicides
Viscosity, surface tension and droplet size of sprays of different formulations of insecticides and fungicides
复制标题
DOI：
10.1016/j.cropro.2017.07.014
复制
发表时间：
2017-11-01
期刊：
影响因子：
2.8
通讯作者：
de Carvalho, Lidia Raquel
中科院分区：
文献类型：
--
作者：
Carvalho, Fernando Kassis;Antuniassi, Ulisses Rocha;de Carvalho, Lidia Raquel
使用 30 种商业杀虫剂和杀菌剂产品，评估了三种类型的杀虫剂和杀菌剂商品剂型：乳油（EC）剂型、悬浮剂（SC）剂型和水分散粒剂（WG）剂型对喷雾剂的表面张力、粘度和液滴尺寸谱的影响。喷雾浓度基于使用 XR 8003VS 扁平扇形喷嘴、在 200 kPa 压力下操作的 50 L ha(-1) 喷水量。 EC 制剂的表面张力最低，而 SC 的粘度最高。乳液在降低小于 100 克的液滴百分比和相对跨度方面最有效，同时比分散型制剂（以 WG 和 SC 制剂为代表）增加了 DV0.1 和 DV0.5 值。在规划喷涂应用和减少漂移时应考虑这些因素。 (C) 2017 Elsevier Ltd. 保留所有权利。
The influence of three types of commercial formulation of insecticides and fungicides, emulsifiable concentrate (EC) formulation, suspension concentrate (SC) formulation and water dispersible granule (WG) formulation on the surface tension, viscosity and the droplet size spectra of sprays was evaluated using thirty commercial insecticide and fungicide products. The concentration of sprays was based on application water spray volume of 50 L ha(-1) using an XR 8003VS flat fan nozzle, operated at 200 kPa pressure. The lowest surface tensions were obtained with EC formulations, while the SCs had the highest viscosities. Emulsions were the most effective at decreasing the percentage of droplets smaller than 100 gm and relative span, while increasing the DV0.1 and DV0.5 values than the dispersion-type formulations, represented by WG and SC formulations. These factors should be considered for planning spray applications and reducing drift. (C) 2017 Elsevier Ltd. All rights reserved.