摘要
为了摸索界面聚合法制备阿维菌素微胶囊悬浮剂的方法,探索了以水为反应介质的界面聚合法制备壁材为聚脲的阿维菌素微胶囊悬浮剂的实验方法,研究了乳化剂的种类、分散剂的种类、壁材的用量、搅拌速度、界面聚合时间等因素对微胶囊的粒径和包覆率的影响。结果表明,选用甲苯-2,4-二异氰酸酯和乙二胺作为壁材,聚合时间为4 h,搅拌速度为1000 r/min,乳化剂选择OP–10,以GY–DS02+GY–D05(m/m,3/2)作为分散剂,可制得平均粒径2μm、包覆率在90%以上的微胶囊。
In order to explore the interface polymerization method of micro-capsule suspension of abamectins,we investigated the preparation of micro-capsule suspension of abamectin using the polyurea as the wall material in aqueous solution.The types of emulsifying agents,the types of dispersant agents,the amounts of the wall materials,the stirring speed and the interfacial polymerization time on the size and shape of the micro-capsules were studied.The results showed that the micro-capsule with the average particle size 2 mm and the coverage ratio 90% can be obtained in the condition of 2,4-diisocyanate and ethylenediamine as the wall material,4 h for the polymerization,the stirring speed of 1000 r/min,emulsifier OP-10,and GY–DS02 ＋ GY–D05（m/m,3/2） as dispersing agent.
出处
《现代农药》
CAS
2011年第4期24-26,共3页
MODERN AGROCHEMICALS
关键词
界面聚合
微胶囊悬浮剂
阿维菌素
聚脲
interfacial polymerization
capsule suspension
abamectin
polyurea
