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Research on Four Fmulations of Butene-Fluorine and Application Performance of Fmulations

Author: YuanZhiJun
Tutor: DengXinPing
School: Southwestern University
Course: Pesticides
Keywords: Butylene fipronil EC WP WDG SC Application Performance
CLC: S482.3
Type: Master's thesis
Year: 2010
Downloads: 128
Quote: 0
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Abstract

Pest control pesticides as an important production, plays an irreplaceable role, but the difficulty of working with synthetic pesticides continue to increase, as well as investment risks and other factors, led to the development cycle of new pesticides getting longer, while harmful the rapid development of resistance organisms, resulting in the emergence of new pesticides become more difficult. Rational development of pesticide formulations and application performance aspects of research, can delay pesticide resistance, improve the utilization of pesticides to maintain the stability of the ecological environment and achieve sustainable development of agriculture. This study is based butylene fipronil physicochemical properties, developed a butylene fipronil wettable powders, water dispersible granules and suspending four kinds of formulations, the establishment of appropriate product quality analysis methods, and through cost accounting , application performance and field efficacy compared to filter out suitable butylene fipronil processed forms. Now the main findings are summarized as follows: 15% butene-fipronil EC optimal formula by emulsifying the experimental method, for several emulsifier monomer and emulsifiers for screening, and ultimately through a large number of experimentally derived 5% D ene fipronil EC optimal formula: butene Fipronil 5% DMF 10% 5003% Agriculture dairy farmers milk 7003% xylene complement to 100% 2 10% butylene fipronil WP optimal Formulation large number of experiments to determine the basis, through the wetting agent and dispersing agent, screening, 10% of butene obtained fipronil optimal formula of wettable powder: 10% of butylene fipronil laurylsulfate lignin sulfonate sodium 1% 3% 6% silica kaolin complement to 100% 3 20% butylene fipronil water dispersible granule formulations identified by a combination of wetting and dispersing agent and the amount of screening to determine the most good combination on the basis of a disintegrant, binder, and 20% of the carrier further filter butene derived fipronil WDG optimum formula: 20% of butylene fipronil dodecylbenzenesulfonate 6% sodium alkyl naphthalene sulfonate 5% sodium chloride 6% soluble starch 2% kaolin complement to 100% 4 5% butylene fipronil aqueous suspension formulations using the optimal flow point method and try the logarithmic law wetting and dispersing agents and emulsifying species were screened using the method to determine the optimum viscosity formulation viscosity, eventually got fipronil 5% water suspension butene BEST Recipe: 5% butene wood fipronil Su calcium sulfonate 1.5% Nongru 5001% Agriculture Milk 7001% Yellow gum 0.2% bentonite 1% ethylene glycol 5% defoamer 4701 cover 100% 5% Water quality testing four kinds of preparations by gas chromatography the four preparations fipronil butene content of the active ingredient, and the results showed that the samples butene content of fipronil content to meet the requirements of the active ingredient formulation, the selected measuring conditions, the effective ingredient of the peak area good linear relationship between the concentration. By GB recommended method of the requirements of the four formulations were measured indicators, quality testing results show that: the physicochemical properties of various formulations and performance indicators are in line with the national standard, the detection method used to meet butylene fipronil four kinds of preparations quality testing standards. 6 Cost comparison of four kinds of preparation resulted in the adoption of the four formulations of prescription costs, packaging costs and processing costs as well as a comparison, the cost of preparations derived four kinds of order: 10% butylene fipronil WP ( 73,300 / t) lt; 5% butylene fipronil water suspension (82,800 / t) lt; 20% butylene fipronil water dispersible granules (83,200 / t) lt; 5% butylene fipronil nitrile EC (89,680 / ton). You can see the 5% butylene fipronil EC is the cost of four kinds of preparations in the highest, lowest WP. 7 four kinds of performance measurement results of application of the preparation by the surface tension of the four formulations, the particle size and the maximum Retention of the comparison, 20% of butylene fipronil diluent WDG average surface tension 35.17mN / m, the lowest of four preparations. 5% water suspension butylene fipronil average particle size of the diluent 1.65μm, are the four smallest size of the formulation. 5% water suspension butylene fipronil diluent Retention of the average maximum amount of 0.004060μL · cm-2, are the four formulations diluent maximum retention capacity. 8 four kinds of preparations field efficacy and persistence of the comparison reference field efficacy trials, through four preparations on Plutella field efficiency and persistence of experimental data can be found in the concentration of the active ingredient 64mg / L, with 5% butylene fipronil EC control effect the highest 5% butylene fipronil SC and 20% butylene fipronil water dispersible granules and 5% butylene fipronil EC control effect There was no significant difference between 10% butylene fipronil WP control effect a minimum. In the 32mg / L when the four formulations 1 ~ 7d the control effect more than 76%, higher than the control agent. At low concentrations 8mg / L when the four formulations control effect more than 50%, and 5% water suspension fipronil butene at low concentrations to control efficiency greater than 5% fipronil EC butene. Four kinds of preparations persistence of comparison, four kinds of high concentration formulations prevention is better than control agents 5% fipronil SC effect is remarkable, low concentrations of 10 to 15 days of prevention is better than a controlled drug. 9 Application Performance comparison of four kinds of formulations formulations based on four kinds of application performance, cost accounting, field efficacy results of the comparison can be seen that 5% butylene fipronil aqueous suspension in application performance demonstrated outstanding advantages, liquid The particle size and has good retention capacity. In cost accounting, 5% aqueous suspension butylene fipronil lower cost, environmentally friendly. In medical terms, 5% water suspension butylene fipronil also showed a significant preventive effect, and the old EC formulations had no significant difference. Therefore, the water can be used as suspending agents for future preparation processing butylene fipronil development.

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