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Benziothiazolinone and copper dicarboxylate-containing microcapsule suspension-suspending agent and preparation method thereof

A technology of copper succinate fertilizer and microcapsule suspending agent is applied in the field of pesticides, which can solve the problems of long control period, poor control effect, environmental pollution, etc., and achieves improved storage stability, high bioavailability, and broad-spectrum control effect. Effect

Inactive Publication Date: 2018-09-28
河北赛丰生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the application of pesticides is the most effective means of preventing and controlling plant fungi or bacterial diseases, but the existing pesticide products can only prevent and control a single type of plant disease, and different types of diseases often need to be controlled by different pesticide varieties. The effect is poor, and the control cycle is long, the cost is high, and it will cause serious environmental pollution

Method used

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  • Benziothiazolinone and copper dicarboxylate-containing microcapsule suspension-suspending agent and preparation method thereof
  • Benziothiazolinone and copper dicarboxylate-containing microcapsule suspension-suspending agent and preparation method thereof
  • Benziothiazolinone and copper dicarboxylate-containing microcapsule suspension-suspending agent and preparation method thereof

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preparation example Construction

[0019] First aspect, the present invention provides a kind of preparation method of the microcapsule suspension-suspension concentrate containing thiamethoxamin and copper succinate, the preparation method comprises the following steps: S1, can be (1-5) according to weight ratio: 1. Mix the prepolymer solution containing oily capsule shell material and thiamethoxamin EC evenly to obtain the first material; S2. The first material obtained in step S1 can be mixed with the buffer solution to obtain the second material. The pH value of the second material may be 5-7; S3, the second material obtained in step S2 may be mixed with an acidic solution to obtain a third material, and the pH value of the third material may be 3-5; S4 . The third material obtained in step S3 can be stirred for 2-6 hours at a temperature of 40-70° C. to obtain a fourth material; S5. The fourth material obtained in step S4 can be mixed with the first dispersion Agent, thickener and antifreezing agent are mi...

Embodiment 1

[0040] Mix urea, formaldehyde and water, and react for 1.5 hours at a pH of 9 and a temperature of 70°C to obtain an aqueous solution of urea-formaldehyde resin prepolymer, wherein the molar ratio of formaldehyde to urea is 1:2, and water and formaldehyde The weight ratio is 2.8:1.

[0041] Mix thiamethondone (content is 95%), alkane solvent naphtha 150# and calcium dodecyl benzene sulfonate to mix uniformly to obtain thiazidemethanone emulsifiable concentrate, wherein, said thiazidemethanone (content is 95%), alkane solvent The weight ratio of oil 150# to calcium dodecylbenzenesulfonate is 1:2.5:0.05.

[0042] Mix the aqueous solution of urea-formaldehyde resin prepolymer and thiamethoxamin emulsifiable concentrate at a weight ratio of 4:1 at a stirring speed of 2000 rpm to obtain the first material; The acetic acid-sodium acetate buffer solution with a total concentration of 2% by weight was uniformly added to the above-mentioned first material within 1.5 hours, and mixed e...

Embodiment 2

[0046] Mix urea, formaldehyde and water, and react for 2 hours at a pH value of 8 and a temperature of 70°C to obtain an aqueous solution of urea-formaldehyde resin prepolymer, wherein the molar ratio of formaldehyde to urea is 1:1, and the ratio of water to formaldehyde The weight ratio is 4:1.

[0047] Mix thiamethondone (content: 95%), alkane solvent naphtha 150# and styryl phenyl polyoxyethylene ether to obtain thiazide thiazide emulsifiable concentrate, wherein, The weight ratio of mineral spirits 150# to styrylphenyl polyoxyethylene ether is 1:0.5:0.1.

[0048]Mix the urea-formaldehyde resin prepolymer aqueous solution and thiamethoxamin emulsifiable concentrate at a weight ratio of 2:1 at a stirring speed of 2000 rpm to obtain the first material; The acetic acid-sodium acetate buffer solution with a total concentration of 2% by weight was uniformly added to the above-mentioned first material within 1 hour, and mixed evenly at a stirring speed of 1100 rpm to obtain the ...

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Abstract

The invention relates to a benziothiazolinone and copper dicarboxylate-containing microcapsule suspension-suspending agent and a preparation method thereof. The preparation method comprises the following steps: S1) uniformly mixing an oily capsule material-containing performed polymer solution and benziothiazolinone missible oil to obtain a first material; S2) mixing the first material and a buffer solution to obtain a second material, wherein a pH value of the second material is 5-7; S3) mixing the second material and an acidic solution to obtain a third material, wherein the pH value of thethird material is 3-5; S4) stirring the third material for 2-6 hours to obtain a fourth material; S5) mixing the fourth material, a first dispersant, a thickening agent and an antifreezing agent to obtain a benziothiazolinone microcapsule suspending agent; and S6) mixing the benziothiazolinone microcapsule suspending agent, a copper dicarboxylate suspending agent, and a second dispersant to obtainthe benziothiazolinone and copper dicarboxylate-containing microcapsule suspension-suspending agent. The benziothiazolinone and copper dicarboxylate-containing microcapsule suspension-suspending agent has the advantages of good stability and excellent drug effect.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a microcapsule suspension-suspension agent containing thiamethoxamin and copper succinate and a preparation method thereof. Background technique [0002] Agricultural diseases are mainly divided into fungi, bacteria and viruses. Fungi are the most important group of plant pathogens. In the actual process of agricultural production, many important diseases such as downy mildew, anthracnose, head blight, tickle smut, leaf spot, black shank, rot and Rice smut, etc. are all caused by fungi. Bacterial disease is a disease caused by bacteria infecting plants. Bacterial diseases have been very common in greenhouses in recent years. Many important diseases such as scab, canker, bacterial angular spot, wildfire and bacterial Streaks, etc. are caused by bacteria. [0003] At present, the application of pesticides is the most effective means of preventing and controlling plant fungi o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01N59/20A01N25/04A01N25/28B01J13/14A01P1/00A01P3/00
CPCA01N43/80A01N25/04A01N25/28A01N59/20B01J13/14
Inventor 陈玉龙白金辉王庆涛张权白明月
Owner 河北赛丰生物科技有限公司
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