Viscoelastic auxiliary agent, and composition, preparation method and application thereof

A technology of bomb adjuvant and composition, applied in the field of pesticide adjuvant, can solve the problems of pollution of the environment, waste of NH3, complicated preparation process of polyetheramine, etc., and achieve the effects of good compatibility, reduction of by-products, and improvement of physical stability

Active Publication Date: 2020-02-28
YANGZHOU SPED CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Multifunctional monomers can be polybasic acids, difunctional acid halides, acid anhydrides, poly(acid anhydrides) and mixtures thereof, and can be used in agricultural chemical compositions, but the preparation process of t

Method used

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  • Viscoelastic auxiliary agent, and composition, preparation method and application thereof
  • Viscoelastic auxiliary agent, and composition, preparation method and application thereof
  • Viscoelastic auxiliary agent, and composition, preparation method and application thereof

Examples

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Example Embodiment

[0056] Example 1

[0057] The embodiment of the present invention discloses a droplet viscoelastic water-based polymer additive and a composition thereof. The preparation method specifically includes the following steps:

[0058] (1) Add 2.75g of methanesulfonic acid and 561g of dimer acid (HONGTAI) to the reaction kettle, and replace it with nitrogen 3 times, raise the temperature to 140-160℃, add 156g of diethylenetriamine dropwise, and add Enter nitrogen for dehydration, while controlling the dropping temperature to 140-160℃, and the dropping time for 2.5-3h. After the dropping, control the temperature to 160-165℃ for the maturation reaction. The maturation time is 4-6h. When the water is collected about 36g, test When the acid value is less than 2.5mgKOH / g, add 280g of oleic acid, control the temperature at 180-185℃, and add a little nitrogen for dehydration, the maturation time is 5-7h, when the collected water is about 18g, when the detected acid value is less than 1.8mgKOH / g...

Example Embodiment

[0064] Example 2

[0065] The embodiment of the present invention discloses a droplet viscoelastic water-based polymer additive and a composition thereof. The preparation method specifically includes the following steps:

[0066] (1) Add 3.1g p-toluenesulfonic acid and 561g dimer acid (UNIDYME TM 14), and replace with nitrogen 3 times, raise the temperature to 140-160℃, add 347g of pentaethylene hexaamine dropwise, and dehydrate with a little nitrogen, while controlling the temperature of the dropping to 180-190°C, and the dropping time for 2.5- 3h, after dripping, control the temperature at 180-190℃ for maturation reaction, maturation time is 4-6h, when the collected water is about 36g, the acid value is less than 1.8mgKOH / g, add 216g oleic acid, control the temperature at 180-195℃, Dehydrate with a little nitrogen, and the maturation time is 5-7h. When the collected water is about 18g, and the acid value is less than 1.2mgKOH / g, the volatile components can be removed by vacuum at...

Example Embodiment

[0072] Example 3

[0073] The embodiment of the present invention discloses a droplet viscoelastic water-based polymer additive and a composition thereof. The preparation method specifically includes the following steps:

[0074] (1) Add 7.5g p-toluenesulfonic acid and 561g dimer acid (UNIDYME TM 18), and replace with nitrogen 3 times, raise the temperature to 140-160℃, add 138g of diethylenetriamine dropwise, and add a little nitrogen for dehydration, while controlling the dropping temperature to 180-190°C, the dropping time is 2.5- 3h, after dripping, control the temperature at 180-190℃ for maturation reaction, maturation time is 4-6h, when collecting water about 35g, the acid value is less than 4mgKOH / g, add 228g coconut oleic acid, control the temperature at 180-195℃, Dehydrate with a little nitrogen, and the maturation time is 5-7h. When the collected water is about 11g, and the acid value is less than 0.8mgKOH / g, the volatile components can be removed by vacuum at 80-85℃ to o...

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Abstract

The invention provides a viscoelastic auxiliary agent and a composition, a preparation method and an application thereof, the method comprises the following steps: (1) dripping polyethylene polyamineinto dimer acid under the action of an acidic catalyst, and blocking the dimer acid with fatty acid or fatty acid ester after aging reaction to obtain A; (2) adding an alkaline catalyst to the A, thenadding an epoxy compound for aging reaction, adding a neutralizing agent to adjust pH, adding an acidic catalyst, fatty acid or fatty acid ester, and carrying out esterification modification to obtain a modified polyethylene polyamine alkoxy ester compound B; (3) carrying out a cationization reaction on the B under the action of a cationization reagent aqueous solution to obtain the viscoelasticauxiliary agent. The viscoelastic auxiliary agent composition provided by the invention can obviously reduce rebound and tumble of pesticide droplets on a target, and improves retention, spreading andutilization rate of pesticides.

Description

technical field [0001] The invention relates to the technical field of pesticide adjuvants, and more specifically relates to a viscoelastic adjuvant and its composition, preparation method and application. Background technique [0002] As an important means of agricultural production in my country, pesticides are widely used in the prevention and control of diseases, insects, weeds, and pests that seriously endanger production activities such as agriculture, forestry, animal husbandry, and fishery, and have made indelible contributions to national strategic issues such as increasing food production. contribute. However, the amount of pesticide liquid usage has also hit new highs. Studies have shown that the utilization rate of pesticides after spraying in my country is only 30%, and about 70% of the liquid medicine bounces, rolls, aggregates and loses into the ecological environment due to the ineffective dripping and adhesion of the droplets on the target surface, resulting...

Claims

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Application Information

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IPC IPC(8): C08G65/26C08G65/337C08G65/324A01N25/24A01N47/40A01N43/90A01N43/76A01N51/00A01P7/04A01P7/02
CPCC08G65/2633C08G65/337C08G65/324A01N25/24A01N47/40A01N43/90A01N43/76A01N51/00
Inventor 王磊曹雄飞宋文勇沈姣姣秦敦忠
Owner YANGZHOU SPED CHEM
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