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Vegetable oil-based polymer, composition and preparation method thereof

A vegetable oil-based and vegetable oil technology, applied in botany equipment and methods, plant growth regulators, chemicals for biological control, etc., can solve the problem of reducing the amount of oil separation in preparation storage, natural environment and food hazards, and not using commercial In order to improve physical stability, reduce the loss of liquid medicine, and reduce the evaporation of droplets

Active Publication Date: 2022-03-25
YANGZHOU SPED CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the dispersible oil suspension concentrate has the following problems: 1. It is difficult to process and has poor stability; the main reason is that there are few types of processing aids to choose from, and the matching degree between the components of the system is high; 2. Oil is used as the carrier. , the specific gravity difference is large, it is necessary to add a thickener to adjust the viscosity of the preparation to delay the sedimentation rate of solid particles and reduce the amount of oil separation in the storage of the preparation
Among them, the esterification of maleic anhydride-modified vegetable oil with ethanol takes up to 2 days, which reduces the production efficiency and increases the production cost.
In the patent application document of WO2016153913A1, a maleated natural oil derivative used in agriculture is disclosed. Although it can improve the efficacy, nonylphenol polyether monoamine, nonylphenol polyether and its Derivatives will bring potential harm to human body, natural environment and food, which limits its application

Method used

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  • Vegetable oil-based polymer, composition and preparation method thereof
  • Vegetable oil-based polymer, composition and preparation method thereof
  • Vegetable oil-based polymer, composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089]Add 860g of refined rapeseed oil and 45.28g of maleic anhydride into a four-neck flask, mix and stir for 30 minutes, protect with nitrogen, and raise the temperature to the set temperature of 205°C (the actual temperature will fluctuate by ±5°C during the reaction process) and react for 7h. Chromatography detects that the content of maleic anhydride is 1-2%, and the reaction is completed to obtain maleic anhydride soybean oil. The unreacted maleic anhydride is removed by heating and vacuuming. The set temperature of heating and vacuuming is 112°C (the actual temperature will fluctuate by ±3°C during the reaction process), the vacuum degree is 0.05-0.065Mpa, and the time is 0.6h , and use a condensing device to recover for standby to obtain active polymerizable monomer 1A.

Embodiment 1-1

[0091] Add 3.1g of ethylenediamine and 103.1g of rapeseed oil into a four-necked flask, and add 100g of the above-mentioned maleic anhydrided rapeseed oil dropwise at a temperature of 77°C (the actual temperature may fluctuate by ±3°C during the process) , the dropping time is 30 minutes. After the dropwise addition, vacuum degassing is carried out. The set temperature of vacuum degassing is 152°C (the actual temperature will fluctuate by ±3°C during the reaction process), the degassing time is 6h, and the amine value is 28mgKOH / g, after obtaining the vegetable oil-based polymer with an effective content of 50%; at 72°C (the actual temperature will have a fluctuation of ±3°C during the process), 3.87g of methyl chloride is introduced, and the reaction time is 2.5h; Chloromethane to obtain the quaternized vegetable oil-based polymer 1B using vegetable oil as a solvent.

Embodiment 1-2

[0093] Under the condition of a set temperature of 63°C (the actual temperature may vary within 62-65°C), 40g of the 50% quaternized vegetable oil-based polymer and 60g of the composite emulsifier obtained above were stirred for 30 minutes to obtain the vegetable oil-based polymer. Composition 1C.

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Abstract

The invention discloses a plant oil-based polymer, a plant oil-based composition and a preparation method of the plant oil-based polymer. The plant oil-based polymer is a five-membered heterocycle-containing polymer of active primary amine modified plant oil. An electron donating N-H unit and quaternized tertiary amine on a polyethylene polyamine group in the plant oil-based polymer can be firmly adsorbed on the surface of a target under the action of factors such as hydrogen bonds and electrostatic force, so that the deposition amount of a liquid medicine on the target is increased, the loss of the liquid medicine is reduced, and the harm of environmental pollution is avoided.

Description

technical field [0001] The invention belongs to the field of pesticide adjuvants, and more specifically relates to a vegetable oil-based polymer, a composition and a preparation method thereof. Background technique [0002] Chemical fertilizers and pesticides are essential inputs in agricultural production. Agricultural adjuvants can improve the utilization rate of pesticides and chemical fertilizers, which contributes greatly to increasing agricultural production and farmers' income. However, with the continuous improvement of public living standards and consumer demand, people pay more attention to safety, health, and environmental protection, and put forward higher requirements for the use of agricultural adjuvants. The report data of World Agrochemical shows that under the concept of "green plant protection", the global agricultural adjuvant sales market has maintained a compound growth rate of 7% year after year. With the implementation of the "zero growth of chemical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/00C08G65/331A01N25/04A01N25/30A01N43/36A01P1/00A01P3/00
CPCC08G65/00C08G65/3322C08G65/3328A01N25/04A01N25/30A01N43/36
Inventor 秦敦忠王磊
Owner YANGZHOU SPED CHEM
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