农药学学报2011，Vol.13Issue(5)：525-530,6.DOI:10.3969/j.issn.1008-7303.2011.05.15
制备工艺对丁硫克百威微囊理化特性的影响
The effect of preparation procedure on physico-chemical properties of carbosulfan microcapsules
王芳 1孙妍 1何顺 1敖明鸣 1曹永松1
作者信息
- 1. 中国农业大学农学与生物技术学院,北京100193
- 折叠
摘要
Abstract
Microcapsules containing carbosulfan with urea-formaldehyde (UF) were prepared by the in situ polymerization method in aqueous medium. The properties of carbosulfan microcapsules were analyzed with emulsifier, rate of pesticide and wall, temperature, acidifying agent, adsorbent agent of formaldehyde, modifier. According to the results,optimum reaction conditions were as follows;emulsion 1602#:500# = 15= 2(m/m),carbosulfan:UF = 1: 1 (m/m),the dosage of emulsifier were 6. 0% ,5% (NH4)2SO4 as the acidifying agent, 1% chitosan as the adsorbent agent of formaldehyde, 2% polysiloxane as the modifier. Under these conditions, the microcapsules showed satisfied surface morphology and particle size distribution,with the mean particle diameter of 2.00 (xm,and encapsulating rate was above 90.9% , suspension rate was above 92%. The 20% carbosulfan microcapsule suspension has the characteristics of high stability,and possesses a good potential for its development.关键词
丁硫克百威/微囊/脲醛树脂/原位聚合法Key words
carbosulfan/microcapsule/urea-formaldehyde resin/in situ polymerization分类
化学化工引用本文复制引用
王芳,孙妍,何顺,敖明鸣,曹永松..制备工艺对丁硫克百威微囊理化特性的影响[J].农药学学报,2011,13(5):525-530,6.
