Influence of polymeric surfactants on pesticidal suspension concentrates:: dispersing ability, milling efficiency and stabilization power
Influence of polymeric surfactants on pesticidal suspension concentrates:: dispersing ability, milling efficiency and stabilization power
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DOI：
10.1016/s0927-7757(01)00505-2
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发表时间：
2001-07-15
影响因子：
5.2
通讯作者：
Schlatter, C
中科院分区：
文献类型：
--
作者：
Haas, S;Hässlin, HW;Schlatter, C
本文讨论了不同的高分子表面活性剂和分散剂对农药水基悬浮剂配方的三个关键方面的影响：高分子表面活性剂对固体活性成分的分散能力，对湿磨过程的支持，从而提高研磨效率，以及稳定颗粒对团聚和储存时的Ostwald熟化的影响。因此，我们的实验室已针对这三个参数测试了各种不同化学和/或分子量的聚合物表面活性剂和分散剂。正如所预期的，聚合物表面活性剂和分散剂的化学性质和分子量对于所有三个关注点以及所用农药活性成分的物理化学参数起着重要作用。(C)2001 Elsevier Science B. V.保留所有权利。
This paper deals with the influence of different polymeric surfactants respectively dispersants on three crucial aspects for the formulation of pesticides as water based suspension concentrates: the dispersing ability of the polymeric surfactant for the solid active ingredient, the support of the wet milling process leading to a better milling efficiency and the stabilization of the particles against agglomeration and Ostwald ripening upon storage. Therefore a wide range of polymeric surfactants respectively dispersants with different chemistry and/or molecular weight has been tested in our laboratories with regard to these three parameters. As expected, the chemical nature and the molecular weight of the polymeric surfactant respectively dispersant plays an important role for all three points of interest as well as the physico-chemical parameters of the used pesticidal active ingredient. (C) 2001 Elsevier Science B.V. All rights reserved.