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Water-soluble thickener, preparation method thereof and application thereof in pesticide formulation

A technology of water-soluble thickener and preparation method, which is applied in the directions of dissolution, transportation and packaging, chemical instruments and methods, etc., can solve the problem that the adhesion effect of plant leaves has not attracted enough attention, and achieve the reduction of drug costs and reduction of Dosage, effect of improving efficacy

Active Publication Date: 2010-02-17
江苏钟山新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Glyphosate isopropylamine salt and fomesafen are two commonly used water-soluble herbicides, and their application areas at home and abroad continue to expand, but the development of these two herbicide adjuvants generally only focuses on the growth of plant leaves. Spreading, while the effect of adhesion to plant foliage has not attracted enough attention

Method used

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  • Water-soluble thickener, preparation method thereof and application thereof in pesticide formulation
  • Water-soluble thickener, preparation method thereof and application thereof in pesticide formulation
  • Water-soluble thickener, preparation method thereof and application thereof in pesticide formulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In the round bottom flask, add 370 grams of dodecylamine, then add 400 milliliters of methanol, start stirring and drop into 294 grams of glutamic acid and 600 milliliters of water. Stir for 20 minutes, perform suction filtration, wash with methanol, and then vacuum-dry to obtain a white solid.

[0023] Get 332 grams of white solids and put them into a round-bottomed flask, and add 750 milliliters of xylene, stir evenly and add 0.03% concentrated sulfuric acid dropwise. Heated to reflux for 12 hours to remove the water formed therein. To the resulting liquid was added 100 ml of diethyl ether, and a solid precipitated out. After suction filtration, a light yellow solid was obtained.

[0024] Get 125 grams of light yellow solid and put it into a round-bottomed flask, and add 250 milliliters of decanol, stir well, and then add 0.03% concentrated sulfuric acid dropwise. Heat to reflux for 12 hours. To the obtained liquid was added 300 ml of diethyl ether, and a solid wa...

Embodiment 2

[0029] Add AEO-9, 145.5 grams, 50% NaOH aqueous solution 60g, phase transfer catalyst tetrabutylammonium bromide 12g in 500 milliliter there-necked flask, heat up while stirring, and add people's epichlorohydrin 46g simultaneously, heat up To 80±2°C, react under strong stirring for 1.5 hours, stop stirring and separate the lower layer. The upper layer evaporates unreacted epichlorohydrin through vacuum distillation,

[0030] In a 250 ml three-necked bottle, add 63.8 g of the fatty alcohol polyoxyethylene glycidyl ether obtained in the previous part, the mass fraction is 11.46 g of 33% trimethylamine aqueous solution, and 100 ml of absolute ethanol, and neutralize with concentrated HCl to Neutral, react at 70±2°C for 1 hour under stirring, distill ethanol and water to obtain quaternary ammonium salt surfactant.

[0031]

[0032] which can be used in C 10 ~C 18 Any kind of alcohol can replace dodecanol, and the amount of ethylene oxide added can be 3-10.

Embodiment 3

[0034] Preparation of water-soluble thickener:

[0035] Put 100 grams of any amino acid-based amphiphilic surfactant in Example 1 into a 1-kilogram reactor, then pump in 820 grams of water, start stirring, heat up to 50-55 degrees, stir for 30 minutes until the solids are completely dissolved, and then Add 80 grams of the quaternary ammonium salt surfactant in Example 2, stir for 30 minutes, and the obtained colorless viscous liquid is the water-soluble thickener of the present invention.

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PUM

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Abstract

The invention relates to a water-soluble thickener which comprises the following components in the mass percent: 0.5-15% of amino-acidic group amphiphilic surfactant (A), 1.5-20% of quaternary ammonium salt surfactant (B) and the balance of water. The water-soluble thickener has good thickening effect and can increase the viscosity of the aqueous pesticide formulation. The invention discloses a preparation method and an application in the pesticide formulation of the water-soluble thickener.

Description

technical field [0001] The invention relates to a water-based thickener and its application in water-based pesticides. Background technique [0002] Thickener is a kind of rheological additive, which plays a very important role in controlling the rheology of the system. It can increase the viscosity of the system, keep the system in a uniform and stable suspension state or emulsified state, or form a gel. It can endow the product with excellent physical and chemical stability. There are many types of thickeners, which can be divided into water-based thickeners, oily thickeners, acidic thickeners, and alkaline thickeners according to their uses. When choosing these thickeners, in addition to considering the fluidity, transparency, consistency, gelatinity, and ability to suspend particles of the product, attention should also be paid to the selection of less dosage and good thickening effect, and good compatibility with the main components without producing Phase separation,...

Claims

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Application Information

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IPC IPC(8): B01F17/28B01F17/44B01F17/18C09K23/28C09K23/18C09K23/44
Inventor 王永生孙红霞崔迎春申宝兵
Owner 江苏钟山新材料有限公司
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