Novel seed treatment microcapsule suspension-suspension agent, preparation method and applications thereof

A microcapsule suspending agent and seed treatment technology, applied in the field of pesticides, can solve the problems of single active ingredient, high residue, environmental pollution, etc., and achieve the effects of improving drug efficacy, reducing acute toxicity and reducing pollution

Inactive Publication Date: 2018-05-18
联合国南通农药剂型开发中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the registered market share of peanuts is only 4.9%, and the active ingredient is relatively single. Among them, chlorpyrifos seed dressing accounts for 60-70% of the peanut seed dressing market. Pollution

Method used

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  • Novel seed treatment microcapsule suspension-suspension agent, preparation method and applications thereof
  • Novel seed treatment microcapsule suspension-suspension agent, preparation method and applications thereof
  • Novel seed treatment microcapsule suspension-suspension agent, preparation method and applications thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] The invention discloses a novel seed treatment microcapsule suspension-suspension agent. The active components are bifenthrin and clothianidin, and the bifenthrin exists in the form of bifenthrin microcapsule suspension agent. Clothianidin exists in the form of clothianidin suspension, and the content of each raw material in terms of mass percentage is as follows: bifenthrin 6.8-8.2%, clothianidin 6.8-8.2%, wetting agent 1-5%, warning color 0.5% -5%, dispersant 1-5%, antifreeze 0.1-1%, viscosity regulator 0.1-0.3%, pH regulator 0.01-1%, bactericidal preservative 0.05-0.5%, defoamer 0.1-0.5% , and the balance is deionized water.

[0071] Among them, the function of the warning color is to make the color of the seeds more vivid, which forms a contrast with the environment, has an early warning effect on the outside world, and can make people or predators avoid them.

[0072] As a preferred embodiment, the mass ratio of the bifenthrin to the clothianidin is 1:1.

[0073]...

Embodiment 2

[0079] The invention discloses a preparation method of bifenthrin microcapsule suspension, comprising the following steps:

[0080] S101. dissolving bifenthrin in an organic solvent to form a bifenthrin solution;

[0081] S102. dissolving the first capsule wall material in the bifenthrin solution to obtain an oil phase;

[0082] S103. Add the second capsule wall material and emulsifier into the water, and stir evenly to obtain the water phase;

[0083] S104. Add the oil phase to the water phase, homogenize under high-speed stirring to form an oil-in-water emulsion, and the stirring speed is 8000-12000rpm;

[0084] S105. Reduce the rotational speed to 150-400rpm, add auxiliary reagents to the reaction system, and stir evenly to obtain a bifenthrin microcapsule suspension. The auxiliary reagents include dispersants, viscosity regulators, pH regulators, defoamers, Antifreeze and bactericidal preservatives.

[0085] The content of each component is as follows: 10-30% of bifenth...

Embodiment 3

[0090] The invention discloses a preparation method of clothianidin suspension, comprising the following steps:

[0091] S201. Under room temperature, clothianidin, the first auxiliary reagent, and water are homogenized and mixed at a high speed, and the stirring speed is 10,000 to 20,000 rpm to obtain a mixed slurry;

[0092] S202. Using a sand mill to perform low-temperature ultra-fine continuous pulverization on the mixed slurry to obtain a sand-milled slurry;

[0093] S203. Adding an appropriate amount of the second auxiliary reagent to the abrasive slurry for high-speed homogenization to prepare a clothianidin suspension, the stirring speed is 10000-20000 rpm.

[0094] Preferably, the step S202 specifically includes: turning on the sand mill and turning on the cooling circulating water, controlling the flow rate of the mixed slurry to be 3.0-5.0mL / min, controlling the cavity pressure of the sand mill to be <100kPa, controlling the sand mill The slurry temperature at the ...

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Abstract

The invention discloses a novel seed treatment microcapsule suspension-suspension agent, wherein the active components comprise bifenthrin and clothianidin, the bifenthrin exists in the form of a bifenthrin microcapsule suspension agent, the clothianidin exists in the form of a clothianidin suspension agent, and the auxiliary agents comprise a humectant, a warning color, a dispersant, an anti-freezing agent, a viscosity modifier, a pH value adjuster, a bactericidal preservative and an antifoaming agent. The invention further discloses a preparation method of the novel seed treatment microcapsule suspension-suspension agent, wherein the preparation method comprises: S1, preparing a bifenthrin microcapsule suspension agent by using an interfacial polymerization method, S2, preparing a clothianidin suspension agent by using a low-temperature ultrafine continuous process, and S3, mixing the bifenthrin microcapsule suspension agent, the clothianidin suspension agent, a warning color and auxiliary agents to prepare the bifenthrin-clothianidin seed treatment microcapsule suspension-suspension agent. According to the present invention, by compounding and combining bifenthrin and clothianidin, the high synergistic effect can be produced, no adverse effect is generated on the germination, the seedling emergence and the seedling growth of peanut seeds, and the advantages of safety and environmental protection can be achieved.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a novel seed treatment microcapsule suspension-suspension agent and its preparation method and application. Background technique [0002] Seed treatment agent is a kind of pesticide used for seed surface treatment. The active ingredients are mainly insecticides or fungicides. Compared with conventionally used pesticides for stem and leaf treatment, seed treatment agents have obvious advantages in reducing the amount and frequency of pesticide application, reducing environmental pollution, reducing field operations, saving labor, saving costs, and increasing efficiency. At present, seed treatment agents have been accepted by more and more farmers, and have also received strong attention from more pesticide companies. [0003] Peanut is an important economic crop and one of the main varieties of high-quality edible oil. At present, there are more than 100 countries producing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N53/06A01N51/00A01N25/04A01N25/28A01P7/04A01C1/06
CPCA01C1/06A01N25/04A01N25/28A01N51/00A01N53/00
Inventor 吴建兰曹新梅仲苏林
Owner 联合国南通农药剂型开发中心
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