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Paichongding suspension agent and preparation method thereof

A technology of pichamid and suspending agent, which is applied in the field of pichamid suspending agent and its preparation, which can solve the problems of excessive pesticide residues, reduced content of active ingredients, and weakened insecticidal effect, so as to achieve stable insecticidal effect and reduced loss rate , the effect of reducing the amount of use

Inactive Publication Date: 2019-05-03
江苏克胜集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing pichamid is 10% suspension concentrate, but the sustained release effect of pichamid is poor, it is difficult to continuously and effectively kill insects, and it is difficult to control the release dose and time of pesticides, and it is impossible to reasonably and effectively control the slowing of pesticides to pests. At the same time, because the pesticides use suspending agents, the effect of three-dimensional spraying is good during the spraying process of the suspensions. However, there are pesticides that have not been exposed to pests during the three-dimensional spraying process. These pesticides will flow with the surface water and pollute the soil, causing Pesticide residues in the soil exceed the standard; in addition, due to the high content of active ingredients in the suspension in the early stage of the application of the existing suspension, the blood concentration of the pest in the body after contact is high, and the insecticidal effect is good. The ingredients are absorbed and lost by insects, resulting in a decrease in the content of active ingredients in the suspension, weakening the insecticidal effect, and unstable efficacy

Method used

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  • Paichongding suspension agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A pichamid suspension concentrate, comprising pichamid former drug, surfactant, organosilicon defoamer, thickener, antifreeze, each component content is:

[0036] Pichamid original drug 10%;

[0037] Microencapsulation agent: 2%;

[0038] Surfactant 5%;

[0039] Silicone defoamer 2%;

[0040] Thickener 1%;

[0041] Antifreeze 2%;

[0042] The balance is water.

[0043] Microcapsule encapsulating agent comprises solvent A and auxiliary material B, wherein solvent A is selected from wherein one or more of acetonitrile, dichloromethane, acetone, chloroform, water; Adjuvant B is selected from magnesium stearate, cellulose acetate, ethyl alcohol Base cellulose, polydimethylsiloxane, calcium chloroaluminate; In this embodiment, solvent A is selected from acetonitrile, and auxiliary material B is selected from magnesium stearate.

[0044] Surfactants are SDS, EL-40, polyoxyethylene-polyoxypropylene copolymer, wherein SDS accounts for 30% of the total surfactant mass, EL-...

Embodiment 2

[0050] A pichamid suspension concentrate, comprising pichamid former drug, surfactant, organosilicon defoamer, thickener, antifreeze, each component content is:

[0051] 12% of the original drug of Pichamid;

[0052] Microcapsule encapsulation agent 5%;

[0053] Surfactant 15%;

[0054] Silicone defoamer 8%;

[0055] Thickener 8%;

[0056] Antifreeze 5%;

[0057] The balance is water.

[0058] Microcapsule encapsulating agent comprises solvent A and auxiliary material B, wherein solvent A is selected from wherein one or more of acetonitrile, dichloromethane, acetone, chloroform, water; Adjuvant B is selected from magnesium stearate, cellulose acetate, ethyl alcohol Base cellulose, polydimethylsiloxane, calcium chloroaluminate; in this embodiment, solvent A is selected from water, and auxiliary material B is selected from ethyl cellulose.

[0059] Surfactants are SDS and polyoxyethylene-polyoxypropylene copolymer, wherein SDS accounts for 50% of the total surfactant mass,...

Embodiment 3

[0063] A pichamid suspension concentrate, comprising pichamid former drug, surfactant, organosilicon defoamer, thickener, antifreeze, each component content is:

[0064] 11% of the original drug of Pichamid;

[0065] Microcapsule encapsulation agent 3%;

[0066] Surfactant 10%;

[0067] Silicone defoamer 5%;

[0068] Thickener 4%;

[0069] Antifreeze 3%;

[0070] The balance is water.

[0071] Microcapsule encapsulating agent comprises solvent A and auxiliary material B, wherein solvent A is selected from wherein one or more of acetonitrile, dichloromethane, acetone, chloroform, water; Adjuvant B is selected from magnesium stearate, cellulose acetate, ethyl alcohol Base cellulose, polydimethylsiloxane, calcium chloroaluminate; In this embodiment, solvent A is selected from acetonitrile, and auxiliary material B is selected from magnesium stearate.

[0072] The surfactants are SDS and EL-40, wherein SDS accounts for 40% of the total surfactant mass, and EL-40 accounts for 6...

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Abstract

The invention relates to a Paichongding suspension agent comprising Paichongding raw drug, a surfactant, an organo-silicon defoamer, a thickener and an anti-freezing agent. The invention also discloses a preparation method of the Paichongding suspension agent, wherein the Paichongding raw drug is respectively processed into a microcapsule slow-releasing agent and a suspension agent, which are mixed to form the new suspension agent with the microcapsule slow-releasing agent. The Paichongding can be slowly released, wherein releasing time and dosage can be controlled; the Paichongding suspensionagent can reduce degradation and loss of the pesticide in environment and prevent soil pollution, and also can prolong the insecticidal effectiveness of the Paichongding and hold a durable effectiveness.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a pichridam suspension and a preparation method thereof. Background technique [0002] Pichamid is a new type of high-efficiency, broad-spectrum, and low-toxicity neonicotinoid insecticide, which is mainly used to control Homoptera pests. It has a good control effect on rice planthoppers and is a new type of non-toxic and environmentally friendly pesticide. [0003] Suspension concentrates can reduce dust hazards, are safe for operators to use, do not use organic solvents, and have little impact on the environment. The adsorption effect is good, and the drug effect is longer than other dosage forms. [0004] Existing pichamid is 10% suspension concentrate, but the sustained release effect of pichamid is poor, it is difficult to continuously and effectively kill insects, and it is difficult to control the release dose and time of pesticides, and it is impossible to reasonably and effect...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N25/28A01N25/04A01P7/04
Inventor 吴重言吴成伟熊燕玲吴静陆静吴言富徐其文许中怀
Owner 江苏克胜集团股份有限公司
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