Thickening synergist composition for efficient pesticide avermectin oil

A technology of abamectin emulsifiable concentrate and viscosity-increasing synergist, which is applied in the direction of chemicals, applications, and biocides for biological control, and can solve problems such as unobvious viscosity of liquid medicine, unqualified emulsification performance, and reduced effect , to achieve the effect of reducing droplet drift, improving direct effect and reducing surface tension

Inactive Publication Date: 2009-12-02
长兴德源环保助剂有限公司 +2
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The 1.8% viscosifying type abamectin emulsifiable concentrate that has added viscosifying agent as marketed can improve the adhesion force and residence time of medicinal liquid on the surface of the object to a certain extent, but because of its use of small viscosities with a certain viscosity The molecular surfactant is a viscosifying emulsifier, and this product does not significantly increase the viscosity of the liquid medicine
The commercially available agricultural silicone can effectively reduce the surface tension of the liquid medicine and the contact angle between the liquid medicine and the surface of the substrate. It is an excellent tank-mixed agricultural synergist. Ether compound, this substance is easy to cause rearrangement in acid and alkali or water, resulting in failure. Furthermore, when it is added to emulsifiable concentrate, it needs to readjust the emulsification performance. Experiments have confirmed that after one year of storage, the effect is reduced by more than 50%, and the emulsification performance appears. unqualified

Method used

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  • Thickening synergist composition for efficient pesticide avermectin oil

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Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: the synthesis of castor oil polyoxyethylene ether sulfonate ammonium salt

[0018] In 100 liters of stainless steel reactors with agitator, thermometer, condenser, solvent recovery tank, add 50 kilograms of castor oil polyoxyethylene ethers (n=35, produced by Jiangsu Zhongshan Chemical Co., Ltd., commonly known as BY-125), Start stirring, raise the temperature to 40°C, add 5 kg of sulfamic acid and 1.6 kg of urea in batches within 0.5 hours, raise the temperature to 90-110°C for 2 hours after adding, cool down to 60°C, add methanol and filter to remove sulfamic acid and urea , the filtrate is steamed out of methanol to obtain the raw material castor oil ammonium polyoxyethylene ether sulfonate of the present invention, and the product is designated as B-1.

Embodiment 2

[0019] The synthesis of embodiment 2 castor oil polyoxyethylene ether sulfonate ammonium

[0020] In 100 liters of stainless steel reactors with agitator, thermometer, condenser, solvent recovery tank, add 10 kilograms of castor oil polyoxyethylene ethers (n=90, produced by Jiangsu Zhongshan Chemical Co., Ltd., commonly known as BY-140), 20 kg BY-125 and 30 kg castor oil, start stirring, heat up to 40°C, add 12.7 kg of sulfamic acid and 4.1 kg of urea in batches within 0.5 hours, heat up to 90-110°C for 2 hours, cool down to 60°C ℃, add methanol and filter to remove sulfamic acid and urea, and the filtrate steams methanol to obtain the intermediate castor oil ammonium polyoxyethylene ether sulfonate of the present invention, and the product is designated as B-2;

Embodiment 3

[0021] The synthesis of embodiment 3 castor oil polyoxyethylene ether sulfonate ammonium isocyanate polymer

[0022] In a 50-liter stainless steel reaction kettle with a stirrer and a thermometer, add 30 kg of B-1, start stirring, heat up to 80°C, and start to continuously add 4.5 kg of PAPI (Yantai Wanhua Polyurethane Co., Ltd. produced by the company), the temperature is maintained at 100-120° C., kept for 2 hours, and cooled to 60° C. to obtain the intermediate castor oil polyoxyethylene ether sulfonate ammonium isocyanate polymer of the present invention, and the product is designated as B-3.

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Abstract

The invention discloses a thickening synergist composition for efficient pesticide avermectin oil, which is formed by mixing 50 to 90 percent by weight of a polymer (A) of castor oil polyoxyethylene ether ammonium sulphonate and isocyanate and 50 to 10 percent by weight of plant oil or plant oil methyl ester (B). The viscosity of a liquid medicine of 1.8 percent pesticide avermectin oil prepared from the composition is improved by 4 times, the surface tension of the liquid medicine is reduced by over 22 percent, the adhesive power, the spreading force and the permeability of the liquid medicine prepared from the pesticide avermectin oil are improved, and field experiments show that the pesticide effect is obviously improved.

Description

technical field [0001] The present invention relates to a composition of non-associated polyurethane and vegetable oil, more specifically relates to a kind of pesticide abamectin emulsifiable concentrate, which can improve the viscosity of pesticide liquid and reduce the surface tension of pesticide liquid, and strengthen the pesticide A high-efficiency pesticide abamectin emulsifiable thickener composition for adhesion, spreadability and penetration of abamectin emulsifiable concentrate. Background technique [0002] Abamectin (Avermectin, referred to as AVM) is a 16-membered macrolide antibiotic successfully developed by Japanese scientist Satoshi Omura and the American Merck Company. It is isolated from the fermentation product of Streptomyces avermitilis. Abamectin is a new type of antibiotic, which has the characteristics of broad insecticidal spectrum, novel structure, high efficiency, safety, low residue and good environmental compatibility. Abamectin has extremely h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/24A01N25/30A01N43/90A01N25/04A01P7/00
Inventor 秦敦忠刘娟王德新
Owner 长兴德源环保助剂有限公司
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