文档介绍：Title: A new stabilizer patibility enhancer for aqueous suspensions
新一代的水性悬浮液稳定剂和增容剂
Agrilan 752!
Agrilan 752!
Title: A new stabilizer patibility enhancer for aqueous suspensions
新一代的水性悬浮液稳定剂和增容剂
Agrilan 752!
Introduction 产品介绍
Traditionally ionic surfactant such as anionic and nonionic are widely used as dispersant and wetting in Suspension concentrates (SC), Suspoemulsions (SE) and Flowable concentrate for seed treatment (FS)
传统的阴离子性表面活性剂和非离子型表面活性剂广泛(fan)地在胶悬剂(SC),悬浮乳液(SE)以及拌种剂(FS)中用作分散剂和润湿剂
3
Introduction 产品介绍
Why we add Dispersant SC & FS?
为什么要在SC & FS 加入分散剂?
阴离子性表面活性剂
原药
粒子
亲油
亲水
Beads mill
研磨
4
Introduction 产品介绍
Why add wetting (润湿剂) to SC & FS?
为什么要在SC & FS 中加入润湿剂?
润湿剂
H20/水
5
Introduction 产品介绍
Why add adjuvancy into SC?
为什么要在SC 加入增效剂?
Improve efficacy of active
提高原药的效能
6
But! 可是!
In certain circumstances the adsorption powder of anionic surfactant to the particle surface can be insufficient when:
在以下情况下阴离子性表面活性剂在粒子表面的吸附力可能会不够:
Containing high amounts of active ingredient
原药成分含(han)量较高
2. High loading of adjuvants and oils
配方中含有高含量增效剂或油类
3. High density active ingredient can be difficult to stabilize
高密度的原药
在以上3情况下难以稳定
7
Problem! 问题!
Can be difficult to stabilize when traditionally anionic or nonionic surfactants is displaced (adsorption deplete) these often result in:
当传统的阴离子型(xing)或非离子型表面活性剂表现不稳
定时,会导致:-
Viscosity increase during storage
储存时粘(nian)度升高
Phase separation upon storage
储存时分层
Bad dispersability and suspensibility
分散性差,悬浮性差
8
Possible Solution 解决方法
Combine the ionic dispersant with
nonionic surfactant with a polymeric dispersant:
用阴离子性型分散剂和非离子型表面活性剂
与聚合物分散剂复配:
+
Nonionic (非离子)
Anionic(阴离子分散剂)
Agrilan 752 (聚合物分散剂)
9
Agrilan 752 – Chemistry and Structure 化学结构
Polymeric surfactant / 聚合物表面活性剂
b structure / 双梳结构
Weakly anionic
弱阴离子性
10