高效氟氯氰菊酯水乳剂剪切流变性质的影响因素及其与稳定性的关系
|
摘要
[目的]探索不同因素对高效氟氯氰菊酯水乳剂剪切流变性质的影响,以及剪切流变性质与稳定性2者之间的关系。[方法]通过测试不同乳化剂组合及其不同配比、黄原胶的不同用量、外加不同的存储时间下高效氟氯氰菊酯水乳剂黏度曲线和流变曲线,研究其对高效氟氯氰菊酯水乳剂流变特性的影响。[结果]高效氟氯氰菊酯水乳剂为假塑性流体,其中黄原胶用量对该水乳剂的剪切流变性质影响最大,假塑性特征随着其浓度的升高而加强,黄原胶含量越高对应的黏度和剪切应力也越高;乳化剂组合和存储时间影响次之,不同的乳化剂和存储时间对应的剪切流变性质差异明显,4号乳化剂配方幅度变化最大,剪切应力和黏度最高;随着存储时间变长,对应的剪切应力减小;而乳化剂用量则影响不大,流变特征的差异度不明显。[结论]高效氟氯氰菊酯水乳剂流变性质与体系稳定性具有一定的关联性,从整体上看,屈服值越大,体系越稳定。
[Aims] The aims were to explored the effects of different factors on the shear rheological properties of beta-cyfluthrin EW, and the relationship between shear rheological properties and stability. [Methods] By testing different emulsifier combinations, different dosage of xanthan gum, viscosity curves and rheological curves of beta-cyfluthrin EW under different storage time, study its effect on the rheological properties of beta-cyfluthrin EW.[Results] Beta-cyfluthrin EW was a pseudoplastic fluid, the dosage of xanthan gum had the greatest influence on the shear rheological properties of the water emulsion, pseudoplastic characteristics were enhanced as their concentration increases, the higher the content of xanthan gum, the higher corresponding viscosity and shear stress, the influence of emulsifier combination and storage time comes second, different emulsifiers and storage time correspond to different shear rheological properties, No. 4 emulsifier formula had the largest change in amplitude, shear stress and viscosity were the highest. As the storage time becomes longer, the corresponding shear stress decreases. But the dosage of emulsifier had little influence, and the difference in rheological characteristics was not obvious. [Conclusions] Rheological properties of beta-cyfluthrin aqueous emulsions have a certain correlation with the stability of the system. Overall, the greater the yield value, the more stable the system.
[Aims] The aims were to explored the effects of different factors on the shear rheological properties of beta-cyfluthrin EW, and the relationship between shear rheological properties and stability. [Methods] By testing different emulsifier combinations, different dosage of xanthan gum, viscosity curves and rheological curves of beta-cyfluthrin EW under different storage time, study its effect on the rheological properties of beta-cyfluthrin EW.[Results] Beta-cyfluthrin EW was a pseudoplastic fluid, the dosage of xanthan gum had the greatest influence on the shear rheological properties of the water emulsion, pseudoplastic characteristics were enhanced as their concentration increases, the higher the content of xanthan gum, the higher corresponding viscosity and shear stress, the influence of emulsifier combination and storage time comes second, different emulsifiers and storage time correspond to different shear rheological properties, No. 4 emulsifier formula had the largest change in amplitude, shear stress and viscosity were the highest. As the storage time becomes longer, the corresponding shear stress decreases. But the dosage of emulsifier had little influence, and the difference in rheological characteristics was not obvious. [Conclusions] Rheological properties of beta-cyfluthrin aqueous emulsions have a certain correlation with the stability of the system. Overall, the greater the yield value, the more stable the system.
引文
[1]史雅丽,郁倩瑶,孙陈铖,等.农药水乳剂物理稳定性的研究进展[J].日用化学工业,2016,46(3):173-177.
[2]LIU Ying,WEI Fang-lin,WANG Yang-yang,et al.Studies on the Formation of Bifenthrin Oil-in-water nano-emulsions Prepared with Mixed Surfactants[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2011,389(1):90-96.
[3]MELIANA Y,CALA N A,LIN C T,et al.Ostwald Ripening of Two Component Disperse Phase Miniemulsions Containing Monomer and Reactive Costabilizer[J].J Dispersion Sci Technol,2010,31(11):1568-1573.
[4]CHO Y H,DECKER E A,MCCLEMENTS D J.Competitive Adsorption of Mixed Anionic Polysaccharides at the Surfaces of Protein-coated Lipid Droplets[J].Langmuir,2009,25(5):2654-2660.
[5]NI Liang,JIANG Wen-hua,HAN Shi-jun.Stability of Emulsion Composed of Nitrobenzene/Water/Sodium Dodecyl Sulfate by Conductance Measurement[J].J Chem Ind Eng,2001,52(12):1104-1108.
[6]LIU ENHUI,MCGRATH K M.Emulsion Microstructure and Energy Input,Roles in Emulsion Stability[J].Colloids Surf A,2005,262(1/3):101-112.
[7]El-DIN M R N.Study on the Stability of Water-in-kerosene Nanoemulsions and Their Dynamic Surface Properties[J].Colloids Surf A,2011,390(1-3):189-198.
[8]ARIMA S,UEJI T,UENO S,et al.Retardation of Crystallization induced Destabilization of PMF-in-water Emulsion with Emulsifier Additives[J].Colloids Surf,2007,55(1):98-106.
[9]庄占兴,路福绥,罗万春,等.聚合物分散剂对氟铃脲水悬浮剂流变性质的影响[J].应用化学,2010,27(4):470-473.
[10]张晓曦.农药水乳剂与农药助剂的流变学研究(硕士论文)[D].北京:中国农业大学,2011.
[11]王振,高越,李光玉,等.高效氟氯氰菊酯水乳剂配方及其润湿性能研究[J].中国农学通报,2012,28(27):250-254.
[12]庄继华.物理化学实验[M].北京:高等教育出版社,2004:154.
[13]吴和融,王彬芳.高分子物理学[M].上海:华东化工学院出版社,1990,120.
[14]梁虎南,龙柱,皮成忠,等.阴离子分散剂对酸化膨润土流变性的影响[J].高等学校化学学报,2009,30(3):549-552.
[15]农业部农药鉴定所.GB/T 19137-2003.农药低温稳定性测定方法[S].北京:中华人民共和国国家质量监督检验检疫总局,2003.
[16]农业部农药鉴定所.GB/T 19136-2003.农药热贮稳定性测定方法[S].北京:中华人民共和国国家质量监督检验检疫总局,2003.
[17]赵向阳,张洁,尤源.钻井液荒原胶胶液的流变特性研究[J].天然气工业,2007,3(27):72-75.
[18]麻建国,DICKINSON E,POVEY M J W.黄原胶体系的流变学及糖和盐对体系的影响[J].无锡轻工业大学学报,1998,1(17):1-7.
[19]LIANG Wen-ping.Emulsion Science and Technology Basic[M].Beijing:Science Press,2001.
[20]SAWYER E.Stabilizing Agents for Agricultural Suspensions and Emulsions[J].Industrial&Engineering Chemistry Product Research and Development,1982,21(2):285-290.
[21]WINZELER H,VOGEL R,DUDLER A.Rheological Measurements in Development and Quality Control of Suspension Concentrates[J].Adv Pestic Sci,Plenary Lect Symp Pap Int Congr Pestic Chem,4th,1979,3:798-809.
[22]顾中怡,李晨,孙敦伟,等.农药悬浮剂的稳定性与流变性质[J].农药,2014,53(5):331-333.
[23]沈德隆,周瑛,唐霭淑,等.农药多组分悬浮体系的流变学行为研究[J].农药,1995,34(5):6-9.
[24]谭成侠,沈德隆.粉福悬浮体系流变学行为的研究[J].浙江工业大学学报,1998,26(2):98-103.
[25]TAN Chen-xia,SHEN De-long,WENG Jian-quan,et al.Research on the Rheological Properties of Pesticide Suspension Concentrate[J].Journal of Zhejiang University Science,2004,28(12):136-139.
[26]高翠丽,路福绥.40%乙草胺水乳剂的制备及研究[J].山东农业大学学报(自然科学版),2007,38(4):578-581.
[2]LIU Ying,WEI Fang-lin,WANG Yang-yang,et al.Studies on the Formation of Bifenthrin Oil-in-water nano-emulsions Prepared with Mixed Surfactants[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2011,389(1):90-96.
[3]MELIANA Y,CALA N A,LIN C T,et al.Ostwald Ripening of Two Component Disperse Phase Miniemulsions Containing Monomer and Reactive Costabilizer[J].J Dispersion Sci Technol,2010,31(11):1568-1573.
[4]CHO Y H,DECKER E A,MCCLEMENTS D J.Competitive Adsorption of Mixed Anionic Polysaccharides at the Surfaces of Protein-coated Lipid Droplets[J].Langmuir,2009,25(5):2654-2660.
[5]NI Liang,JIANG Wen-hua,HAN Shi-jun.Stability of Emulsion Composed of Nitrobenzene/Water/Sodium Dodecyl Sulfate by Conductance Measurement[J].J Chem Ind Eng,2001,52(12):1104-1108.
[6]LIU ENHUI,MCGRATH K M.Emulsion Microstructure and Energy Input,Roles in Emulsion Stability[J].Colloids Surf A,2005,262(1/3):101-112.
[7]El-DIN M R N.Study on the Stability of Water-in-kerosene Nanoemulsions and Their Dynamic Surface Properties[J].Colloids Surf A,2011,390(1-3):189-198.
[8]ARIMA S,UEJI T,UENO S,et al.Retardation of Crystallization induced Destabilization of PMF-in-water Emulsion with Emulsifier Additives[J].Colloids Surf,2007,55(1):98-106.
[9]庄占兴,路福绥,罗万春,等.聚合物分散剂对氟铃脲水悬浮剂流变性质的影响[J].应用化学,2010,27(4):470-473.
[10]张晓曦.农药水乳剂与农药助剂的流变学研究(硕士论文)[D].北京:中国农业大学,2011.
[11]王振,高越,李光玉,等.高效氟氯氰菊酯水乳剂配方及其润湿性能研究[J].中国农学通报,2012,28(27):250-254.
[12]庄继华.物理化学实验[M].北京:高等教育出版社,2004:154.
[13]吴和融,王彬芳.高分子物理学[M].上海:华东化工学院出版社,1990,120.
[14]梁虎南,龙柱,皮成忠,等.阴离子分散剂对酸化膨润土流变性的影响[J].高等学校化学学报,2009,30(3):549-552.
[15]农业部农药鉴定所.GB/T 19137-2003.农药低温稳定性测定方法[S].北京:中华人民共和国国家质量监督检验检疫总局,2003.
[16]农业部农药鉴定所.GB/T 19136-2003.农药热贮稳定性测定方法[S].北京:中华人民共和国国家质量监督检验检疫总局,2003.
[17]赵向阳,张洁,尤源.钻井液荒原胶胶液的流变特性研究[J].天然气工业,2007,3(27):72-75.
[18]麻建国,DICKINSON E,POVEY M J W.黄原胶体系的流变学及糖和盐对体系的影响[J].无锡轻工业大学学报,1998,1(17):1-7.
[19]LIANG Wen-ping.Emulsion Science and Technology Basic[M].Beijing:Science Press,2001.
[20]SAWYER E.Stabilizing Agents for Agricultural Suspensions and Emulsions[J].Industrial&Engineering Chemistry Product Research and Development,1982,21(2):285-290.
[21]WINZELER H,VOGEL R,DUDLER A.Rheological Measurements in Development and Quality Control of Suspension Concentrates[J].Adv Pestic Sci,Plenary Lect Symp Pap Int Congr Pestic Chem,4th,1979,3:798-809.
[22]顾中怡,李晨,孙敦伟,等.农药悬浮剂的稳定性与流变性质[J].农药,2014,53(5):331-333.
[23]沈德隆,周瑛,唐霭淑,等.农药多组分悬浮体系的流变学行为研究[J].农药,1995,34(5):6-9.
[24]谭成侠,沈德隆.粉福悬浮体系流变学行为的研究[J].浙江工业大学学报,1998,26(2):98-103.
[25]TAN Chen-xia,SHEN De-long,WENG Jian-quan,et al.Research on the Rheological Properties of Pesticide Suspension Concentrate[J].Journal of Zhejiang University Science,2004,28(12):136-139.
[26]高翠丽,路福绥.40%乙草胺水乳剂的制备及研究[J].山东农业大学学报(自然科学版),2007,38(4):578-581.