Physicochemical characterization of nonionic surfactants in oil-in-water (O/W) nano-emulsions for new pesticide formulations
Physicochemical characteristics of pre-formulation concentrates of an emulsion system of LFAMEs/APG: organosilicone/water were determined. The surfactants used were octyl/decyl polyglucosides (short-chain APG; SAPG) and dodecyl/tetradecyl/hexadecyl polyglucosides (long-chain APG; LAPG). Alkyl chain...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Center of Promoting Ideas
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/22316/1/Physicochemical%20characterization%20of%20nonionic%20surfactants%20in%20oil.pdf |
| _version_ | 1825946848996622336 |
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| author | Lim, Chaw Jiang Basri, Mahiran Omar, Dzolkhifli Abdul Rahman, Mohd Basyaruddin Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha |
| author_facet | Lim, Chaw Jiang Basri, Mahiran Omar, Dzolkhifli Abdul Rahman, Mohd Basyaruddin Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha |
| author_sort | Lim, Chaw Jiang |
| collection | UPM |
| description | Physicochemical characteristics of pre-formulation concentrates of an emulsion system of LFAMEs/APG: organosilicone/water were determined. The surfactants used were octyl/decyl polyglucosides (short-chain APG; SAPG) and dodecyl/tetradecyl/hexadecyl polyglucosides (long-chain APG; LAPG). Alkyl chain length of the APG was found to dominate the different flow behaviours of emulsions. The SAPG-emulsions exhibited Newtonian behaviour with constant viscosity, while LAPG-emulsions showed non-Newtonian behaviour with reduced viscosity. The morphology study showed larger size assembly of irregular aggregates for LAPG-emulsions as compared to SAPG-emulsions. The presence of glyphosate IPA in SAPG/LAPG emulsions formed polymerized multi-connected network structure, with the network being more densely packed in the LAPG-emulsions than SAPG-emulsions. Glyphosate IPA was found to reduce shear thinning on LAPG-emulsions while no effect was observed on SAPG-emulsions. Upon dilution of the pre-formulation concentrates, nano-formulations were formed. In SAPG-emulsion system, particles size was smaller, more uniformly dispersed and surface tension was lower than in LAPG-emulsion system. |
| first_indexed | 2024-03-06T07:53:36Z |
| format | Article |
| id | upm.eprints-22316 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:53:36Z |
| publishDate | 2011 |
| publisher | Center of Promoting Ideas |
| record_format | dspace |
| spelling | upm.eprints-223162016-09-28T02:25:07Z http://psasir.upm.edu.my/id/eprint/22316/ Physicochemical characterization of nonionic surfactants in oil-in-water (O/W) nano-emulsions for new pesticide formulations Lim, Chaw Jiang Basri, Mahiran Omar, Dzolkhifli Abdul Rahman, Mohd Basyaruddin Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha Physicochemical characteristics of pre-formulation concentrates of an emulsion system of LFAMEs/APG: organosilicone/water were determined. The surfactants used were octyl/decyl polyglucosides (short-chain APG; SAPG) and dodecyl/tetradecyl/hexadecyl polyglucosides (long-chain APG; LAPG). Alkyl chain length of the APG was found to dominate the different flow behaviours of emulsions. The SAPG-emulsions exhibited Newtonian behaviour with constant viscosity, while LAPG-emulsions showed non-Newtonian behaviour with reduced viscosity. The morphology study showed larger size assembly of irregular aggregates for LAPG-emulsions as compared to SAPG-emulsions. The presence of glyphosate IPA in SAPG/LAPG emulsions formed polymerized multi-connected network structure, with the network being more densely packed in the LAPG-emulsions than SAPG-emulsions. Glyphosate IPA was found to reduce shear thinning on LAPG-emulsions while no effect was observed on SAPG-emulsions. Upon dilution of the pre-formulation concentrates, nano-formulations were formed. In SAPG-emulsion system, particles size was smaller, more uniformly dispersed and surface tension was lower than in LAPG-emulsion system. Center of Promoting Ideas 2011-09 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/22316/1/Physicochemical%20characterization%20of%20nonionic%20surfactants%20in%20oil.pdf Lim, Chaw Jiang and Basri, Mahiran and Omar, Dzolkhifli and Abdul Rahman, Mohd Basyaruddin and Salleh, Abu Bakar and Raja Abdul Rahman, Raja Noor Zaliha (2011) Physicochemical characterization of nonionic surfactants in oil-in-water (O/W) nano-emulsions for new pesticide formulations. International Journal of Applied Science and Technology, 1 (5). pp. 131-142. ISSN 2221-0997; ESSN: 2221-1004 http://www.ijastnet.com/journal/index/96:vol-1-no-5-september-2011abstract17&catid=15:abstract |
| spellingShingle | Lim, Chaw Jiang Basri, Mahiran Omar, Dzolkhifli Abdul Rahman, Mohd Basyaruddin Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha Physicochemical characterization of nonionic surfactants in oil-in-water (O/W) nano-emulsions for new pesticide formulations |
| title | Physicochemical characterization of nonionic surfactants in oil-in-water (O/W) nano-emulsions for new pesticide formulations |
| title_full | Physicochemical characterization of nonionic surfactants in oil-in-water (O/W) nano-emulsions for new pesticide formulations |
| title_fullStr | Physicochemical characterization of nonionic surfactants in oil-in-water (O/W) nano-emulsions for new pesticide formulations |
| title_full_unstemmed | Physicochemical characterization of nonionic surfactants in oil-in-water (O/W) nano-emulsions for new pesticide formulations |
| title_short | Physicochemical characterization of nonionic surfactants in oil-in-water (O/W) nano-emulsions for new pesticide formulations |
| title_sort | physicochemical characterization of nonionic surfactants in oil in water o w nano emulsions for new pesticide formulations |
| url | http://psasir.upm.edu.my/id/eprint/22316/1/Physicochemical%20characterization%20of%20nonionic%20surfactants%20in%20oil.pdf |
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