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Thiram suspending agent and preparation method thereof

A technology of thiram double suspension emulsion and thiram, which is applied in botany equipment and methods, acaricides, biocides, etc., can solve problems such as high prices

Inactive Publication Date: 2015-11-25
SHANGHAI SHIDA POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The dispersion effect of the suspoemulsion researched and developed abroad is obviously better than domestic ones, but the price is high, and domestic technical breakthroughs are yet to be made

Method used

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  • Thiram suspending agent and preparation method thereof
  • Thiram suspending agent and preparation method thereof
  • Thiram suspending agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 5% thiram double suspension emulsion

[0055] The content of each component (by weight) is 5% of thiram, 5% of polyoxyethylene ether glycidyl ether phosphate dispersant; 6% of polymer EO / PO block copolymer emulsifier, thickener yellow Raw gum XG 2%, stabilizer phenyl glycidyl ether 10%, defoamer silicone 6%, antifreeze agent ethylene glycol 4%, pH adjuster in appropriate amount to make the pH value of the suspending agent 8. Add deionized water to l00%.

[0056] Step 1: According to the above formula, mix water with wetting and dispersing agent, anti-crystallization agent, and defoaming agent evenly. After adding thiram original drug and dispersing evenly, carry out continuous sand milling with a sand mill. The temperature is controlled below 40 degrees, and the average After the particle size reaches 5um±3um, stop sanding to obtain thiram suspension concentrate SC;

[0057] The second step: dissolve the emulsifier in the adhesive, and mix well to obtain the oil phase...

Embodiment 210

[0063] Embodiment 210% thiram double suspension emulsion

[0064] Each component by weight is 25% of thiram original drug, 15% of dispersant polyoxyethylene ether glycidyl ether phosphate; 6% of polymer EO / PO block copolymer emulsifier, thickener hydroxymethyl cellulose Suspension 3%, stabilizer butyl glycidyl ether 2.5%, antifoaming agent tridecanoic acid 1%, antifreeze agent glycerol 3%, pH adjuster to make the pH value of the suspending agent 7, add deionized water to 100 %. The specific preparation is carried out according to Example 1.

[0065] Appearance: white uniform liquid; average particle size, 2.35um; emulsion stability, qualified;

[0066] The suspending agent prepared by the formula has a suspension rate of 97.80% and good dispersibility.

Embodiment 320

[0067] Embodiment 320% thiram double suspension emulsion

[0068] Each component by weight is 20% of thiram, dispersant polyoxyethylene ether glycidyl ether phosphate 10%; polymer EO / PO block copolymer emulsifier 6% thickener methyl cellulose 3 %, 2.5% stabilizer phenyl glycidyl ether, 1% defoamer Cl0-20 saturated fatty acid compound, 3% antifreeze glycerol, appropriate amount of pH regulator to make the pH value of the suspending agent 7, add deionized water to 100%. The specific preparation is carried out according to Example 1.

[0069] Appearance: white uniform liquid; average particle size, 3.52um; emulsion stability, qualified;

[0070] The suspension rate is 97.50%, and the dispersion is good.

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Abstract

The invention discloses a thiram suspending agent. The suspending agent is composed of the following substances, by weight, 1-40 parts of thiram, 2-15 parts of a dispersant and a wetting agent, 2-10 parts of an emulsifier, 1-3 parts of an anti-crystallising agent, 0.1-2 parts of a thickening agent, 0.1-2 parts of an antifoaming agent, 0.005-2 parts of a preservative, 0.1-10 parts of an antifreezing agent, 1-15 parts of an adhesive, 0.1-10 parts of a pH regulator and water supplied to 100 parts. The invention also discloses a preparation technology of the above thiram suspending agent. The invention has the following advantages: average 95% particle size of the thiram suspending agent is less than 5 microns, and particle size distribution is uniform; stability of the suspending agent is good, and a drug shows high spreadability and adhesiveness on crops' leaves and is resistant to rain wash. Suspensibility of the thiram suspending agent reaches 96% and above. The thiram suspending agent has good fluidity, is nonsticking to bottle walls, has good hot / cold-storage stability and is easy to pour.

Description

technical field [0001] The invention relates to the field of processing pesticide formulations, and relates to pesticide formulations containing thiram, in particular to the suspension system of the original drug particles prepared by the organic sulfur fungicide thiram, mixed with oil emulsion components to form a stable suspoemulsion, and a preparation method thereof . Background technique [0002] In the 21st century, the use of pesticides is still one of the main means for humans to fight against diseases, insect pests and weeds in agricultural production. With the extensive use of pesticides, a large number of organic solvents have polluted the environment. With the continuous enhancement of people's environmental protection awareness and safety knowledge, pesticide formulations have become water-based, granular, slow-release, multi-functional, and labor-saving. And the direction of environmental protection, especially the dosage form of suspoemulsion is more and more ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N47/26A01P3/00A01P7/02
Inventor 任天瑞秦娇龙张雷庞文文李红玉于广金
Owner SHANGHAI SHIDA POLYMER MATERIAL