有机改性膨润土及其对烟嘧磺隆油悬浮体系物理稳定性的影响  

Organic Modified Betonite and Its Effect on the Physical Stability of Nicosulfuron Oil-suspension

作　　者：朱炳煜[1] 张正群[1] 李刚[1] 刘峰[1] 

机构地区：[1]山东农业大学,农药毒理与应用技术省级重点实验室,泰安271018

出　　处：《应用化学》2009年第8期881-884,共4页Chinese Journal of Applied Chemistry

基　　金：国家"十一五"科技支撑计划项目(2006BAD08A03)

摘　　要：利用十二烷基二甲基苄基氯化铵(1227)对钠基膨润土进行有机改性制得1227有机膨润土(1227-Ben)并进行了红外光谱(FT-IR)分析。将其作为抗沉降剂应用于4%烟嘧磺隆油悬剂的制备,考察了1227-Ben对4%烟嘧磺隆油悬体系物理稳定性能的影响。FT-IR及XRD分析结果表明,1227碳链进入到膨润土的片层间。沉降试验表明,随着1227-Ben用量的增加,制剂析油率明显降低,粘度和屈服值则显著提高,并且体系悬浮率提高,表明1227改性膨润土可以用作4%烟嘧磺隆油悬浮剂的抗沉降剂。The anionic surfactant（1227） was used for the preparation of sodium base betonite（Na-Ben）.The prepared 1227-Ben was characterized by FT-IR and XRD and used as subsidence-resistance for preparing 4%nicosulfuron oil-suspension.The effect of 1227-Ben on the physical stability of oil-suspension was examined.FT-IR spectra and XRD analysis results show that the organic agent was intercalated into the layer of montmorillonite.Subsidence-resistance test shows that the increase in 1227-Ben dosage could decrease oil separation rate and improve the viscosity,yield and suspension rate of oil-suspension,that is,1227-Ben could be used as a subsidence-resistance agent for the preparation of 4%nicosulfuron oil-suspension.

关 键 词：有机改性膨润土 烟嘧磺隆油悬浮剂 流变特性 物理性能 

分 类 号：O656.4[理学—分析化学] TQ621[理学—化学]