Stability of pesticide in water emulsion induced by mixed surfactants
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Jiexiang Liu
Jiexiang Liu is professor at the College of Chemical Engineering, Hebei University of Technology, Tianjin, People’s Republic of China. She received her Ph.D. degree in 2005 from the Chinese Academy of Sciences. Her main research interests are in the field of physical chemistry.
Cuihua Qian is currently a graduate student at Hebei University of Technology, Tianjin, People’s Republic of China in 2019. Her main fields of study are colloid and interface chemistry.
Xiaoguang Zhang is currently working at the College of Chemistry, Nankai University, Tianjin, People’s Republic of China. He received his Ph.D. degree in 2005 from Wuhan University. His research interests are the fields of colloid and interface chemistry and their application in pesticide formulation.
Abstract
Etofenprox emulsions in water were prepared by mixing polyoxyethylene (20) castor oil ether (EL-20) with the surfactants polyoxyethylene (10) octylphenyl ether (OP10), polyoxyethylene styrenated phenol ether (602), polyoxyethylene (40) castor oil ether (EL-40) and octylphenyl polyoxyethylene phosphonate (OPP), respectively. Emulsion stability was investigated and analysed based on the hydrophilic-lipophilic equilibrium, surfactant structure and surface tension of the diluted emulsion. The results showed that the emulsions (EL-40 + EL-20) and (OPP + EL-20) had relatively high stability. Subsequently, the surfactants polyoxyethylene-polyoxypropylene-styrenated phenol ether (1601), polyalkoxylated butyl ether (LQ) and OPP were added separately to the emulsions (EL-40 + EL-20), (602 + EL-20) or (OPP + EL-20) to obtain the ternary surfactant systems. Emulsion stability was further investigated and discussed based on droplet size, zeta potential and surface tension. The results revealed that the addition of OPP and LQ could further improve the stability of (EL-40 + EL-20) emulsions, and that LQ was also beneficial for the stability of (OPP + EL-20) emulsions. The stability mechanism of the emulsion was also discussed.
Funding source: National Key Research and Development Plan of China
Award Identifier / Grant number: 2016YFD0200707
About the authors
Jiexiang Liu is professor at the College of Chemical Engineering, Hebei University of Technology, Tianjin, People’s Republic of China. She received her Ph.D. degree in 2005 from the Chinese Academy of Sciences. Her main research interests are in the field of physical chemistry.
Cuihua Qian is currently a graduate student at Hebei University of Technology, Tianjin, People’s Republic of China in 2019. Her main fields of study are colloid and interface chemistry.
Xiaoguang Zhang is currently working at the College of Chemistry, Nankai University, Tianjin, People’s Republic of China. He received his Ph.D. degree in 2005 from Wuhan University. His research interests are the fields of colloid and interface chemistry and their application in pesticide formulation.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This study was supported by the National Key Research and Development Plan of China (2016YFD0200707), http://dx.doi.org/10.13039/501100002855.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Novel Surfactants
- Synthesis and characterisation of carboxy amide-bonded pyridinium Gemini surfactants: influence of the nature of the spacer group and counterions on the aggregation behaviour
- Non-traditional oils with water-soluble substrate as cell growth booster for the production of mannosylerythritol lipids by Pseudozyma antarctica (ATCC 32657) with their antimicrobial activity
- Physical Chemistry
- Synergistic behavior of SLS-OPE-10 binary mixtures at their CMC
- Synergistic interaction between sodium dodecyl benzene sulfonate (SDBS) and N,N-dimethyldodecan-1-amine oxide (DDAO) and their adsorption onto activated charcoal and Jordanian natural clay
- Investigation of the synergistic effect and the morphology of the binary compound systems with potassium N-lauroyl glycinate
- Textile Cleaning
- Effect of the pre-treatment of stains with ultrasound in household laundry cleaning
- Flotation
- Effect of detergents on froth stability and flotation separation
- Environmental Chemistry
- Stability of pesticide in water emulsion induced by mixed surfactants
- Synthesis of surface active agents from natural waste phenolics
Articles in the same Issue
- Frontmatter
- Novel Surfactants
- Synthesis and characterisation of carboxy amide-bonded pyridinium Gemini surfactants: influence of the nature of the spacer group and counterions on the aggregation behaviour
- Non-traditional oils with water-soluble substrate as cell growth booster for the production of mannosylerythritol lipids by Pseudozyma antarctica (ATCC 32657) with their antimicrobial activity
- Physical Chemistry
- Synergistic behavior of SLS-OPE-10 binary mixtures at their CMC
- Synergistic interaction between sodium dodecyl benzene sulfonate (SDBS) and N,N-dimethyldodecan-1-amine oxide (DDAO) and their adsorption onto activated charcoal and Jordanian natural clay
- Investigation of the synergistic effect and the morphology of the binary compound systems with potassium N-lauroyl glycinate
- Textile Cleaning
- Effect of the pre-treatment of stains with ultrasound in household laundry cleaning
- Flotation
- Effect of detergents on froth stability and flotation separation
- Environmental Chemistry
- Stability of pesticide in water emulsion induced by mixed surfactants
- Synthesis of surface active agents from natural waste phenolics
