氟铃脲水悬浮剂的制备及稳定性研究-应用胶体化学专业论文.docxVIP

concentration of organic solvent which effected average size of hexaflumuron SC particles had the largest influence, far greater than other factors. By increasing the concentration of organic solvent could significantly reduce the average size of Hexaflumuron SC particles. The concentration of active ingredient increased from 1% to 6%, effectively saving the cost of production. 3. Take 1% hexaflumuron water suspension as the research object, this paper studied the influence of the electrolyte on Zeta potential. The results showed that Zeta potential of hexaflumuron SC were negative within the experimental pH values. pH affected the dissociation of dispersant in water. With the increaseing of pH, the absolute value of Zeta potential first increased and then decreased. When the pH was about 8.39, the absolute value of Zeta potential is maximum. The type and concentration of salt ions affected the Zeta potential of hexaflumuron SC. With the increasing of the concentration of MgCl2 and NaCl, the absolute value of Zeta potential decreased, and the impact of MgCl2 on the system was even more significant. Keywords: Solvent displacement technique; Hexaflumuron; Suspension Concentrate; Dispersion stability; Orthogonal test; Electrolyte 缩 略 词 缩略词 英文全称 中文名称 SC Suspension Concentrate 悬浮剂 SE Suspoemulsion 悬乳剂 WP Wettable Powders 可湿性粉剂 EC Emulsifying Concentrate 乳油 CMC Critical micelle concentration 临界胶束浓度 SAA Surface active agents 表面活性剂 DMF SESD Dimethylformamide Spontaneous emulsification solvent diffusion N,N-二甲基甲酰胺 乳化溶剂挥发法 PLA Polylactides 聚乳酸 DCM Dichloromethane 二氯甲烷 SEM Scanning Electronic Microscope 扫描电镜 TEM Transmission Electronic Microscope 透射电镜 XRD MOTAS X-ray diffraction Styrene acrylic copolymer X 射线衍射 苯乙烯丙烯酸共聚物 Dav The drops mean diameter 颗粒的平均粒径 关于学位论文原创性和使用授权的声明 本人所呈交的学位论文，是在导师指导下，独立进行科学研究所取 得的成果。对在论文研究期间给予指导、帮助和做出重要贡献的个人或 集体，均在文中明确说明。本声明的法律责任由本人承担。 本人完全了解山东农业大学有关保留和使用学位论文的规定，同意 学校保留和按要求向国家有关部门或机构送交论文纸质本和电子版，允 许论文被查阅和借阅。本人授权山东农业大学可以将本学位论文的全部 或部分内容编入有关数据库进行检索，可以采用影印