Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Adhesive insecticide sustained-release preparation and method for preparing same

A slow-release agent and adhesive technology, which is applied in the field of adhesive insecticidal slow-release agent and its preparation, can solve problems such as prolonging the residence time of pesticides, improve the utilization rate of pesticides, reduce the number of spraying times, and achieve low prices. Effect

Inactive Publication Date: 2017-07-25
HUAZHONG AGRI UNIV
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, one of the purposes is to provide a kind of adhesive insecticide slow-release agent, this slow-release agent has longer persistence period and better foliage adhesion performance It solves the problem of sudden release of pesticides in some carriers, prolongs the residence time of pesticides on crop leaves, can reduce the number of pesticide applications, improve the utilization rate of pesticides and reduce the impact of pesticides on the environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Adhesive insecticide sustained-release preparation and method for preparing same
  • Adhesive insecticide sustained-release preparation and method for preparing same
  • Adhesive insecticide sustained-release preparation and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A preparation method of an adhesive insecticidal slow-release agent, comprising the steps of:

[0044] (1) First add 2.5g polystyrene nanospheres, 2mL ammonia water, 9.6g deionized water, 0.80g cetyltrimethylammonium bromide (CTAB) and 11.0g ethanol to the flask, and ultrasonically disperse it for half an hour. Start stirring for 30 minutes, then add 1.5 g of ethyl orthosilicate to the above reaction system, and react at room temperature for 48 hours;

[0045] (2) calcining the product of step (1) in a muffle furnace at 600° C. for 8 hours to obtain hollow nano-silica A;

[0046] (3) Add 20 mL of toluene and 0.1 g of hollow nano-silica A obtained in step (2) to a three-necked flask, and after ultrasonically dispersing for half an hour, control the reaction temperature at 110°C, and dropwise add 0.5 mL (CH 3 CH 2 O) 3 Si(CH 2 ) 3 NH 2 Coupling agent, reflux reaction for 24 hours, after the reaction is completed, centrifuge to remove the supernatant, wash the obtain...

Embodiment 2

[0056] A preparation method of an adhesive insecticidal slow-release agent, comprising the steps of:

[0057] (1) First add 2.5g of polystyrene nanospheres, 4.0mL of ammonia water, 19.2g of deionized water, 1.6g of cetyltrimethylammonium bromide (CTAB) and 22.0g of ethanol into the flask, and after half an hour of ultrasonic dispersion , start stirring for 30min, then add 1.5g ethyl orthosilicate to the above reaction system, and react at room temperature for 60h;

[0058] (2) calcining the product of step (1) in a muffle furnace at 600° C. for 8 hours to obtain hollow nano-silica A;

[0059] (3) Add 20 mL of toluene and 0.1 g of hollow nano-silica A obtained in step (2) to the three-necked flask, and after ultrasonic dispersion for half an hour, control the reaction temperature at 110°C and add 0.5 mL (CH 3 O) 3 Si(CH 2 ) 3 NH 2 Coupling agent, reflux reaction for 22 hours, after the reaction is completed, centrifuge to remove the supernatant, wash the obtained solid wit...

Embodiment 3

[0068] A preparation method of an adhesive insecticidal slow-release agent, comprising the steps of:

[0069] (1) First add 2.5g polystyrene nanospheres, 1mL ammonia water, 4.8g deionized water, 0.40g cetyltrimethylammonium bromide (CTAB) and 5.5g ethanol to the flask, and ultrasonically disperse it for half an hour. Start stirring for 30 minutes, then add 1.5 g of ethyl orthosilicate to the above reaction system, and react at room temperature for 48 hours;

[0070] (2) calcining the product of step (1) in a muffle furnace at 600° C. for 8 hours to obtain hollow nano-silica A;

[0071] (3) Add 20 mL of toluene and 0.1 g of hollow nano-silica A obtained in step (2) to a three-necked flask, and after ultrasonically dispersing for half an hour, control the reaction temperature at 110°C, and dropwise add 0.5 mL (CH 3 O) 3 Si(CH 2 ) 4 NH 2 Coupling agent, reflux reaction for 16 hours, after the reaction is completed, centrifuge to remove the supernatant, wash the obtained soli...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an adhesive insecticide sustained-release preparation and a method for preparing the same. The method particularly includes preparing hollow nanometer silicon dioxide A; carrying out reaction on the hollow nanometer silicon dioxide and aminosilane coupling agents to obtain amino-modified hollow nanometer silicon dioxide B; carrying out reaction on the amino-modified hollow nanometer silicon dioxide B and 2-bromoisobutyryl bromide to obtain initiator-grafted hollow nanometer silicon dioxide C; preparing D from the initiator-grafted hollow nanometer silicon dioxide C, cyclohexanone, unsaturated monomer compounds, catalysts and ligands; loading insecticides by the aid of solvent evaporation processes to obtain the adhesive insecticide sustained-release preparation which is an insecticide nanometer sustained-release preparation. The adhesive insecticide sustained-release preparation and the method have the advantages that the method is low in cost and energy consumption and free of emission of waste gas, wastewater and industrial residues, and reaction conditions are mild; the adhesive insecticide sustained-release preparation obtained by the aid of the method is high in load ratio, good in environmental compatibility and long in lasting period, and accordingly the problem of burst release of pesticides in certain carriers can be solved; the adhesive insecticide sustained-release preparation is good in leaf surface adhesion property, accordingly, the pesticide application frequencies can be reduced, and the utilization rate of pesticides can be increased.

Description

technical field [0001] The invention belongs to the technical field of insecticides, and in particular relates to an adhesive insecticide slow-release agent and a preparation method thereof. Background technique [0002] Pesticides have the advantages of high efficiency, quickness, economy, simple operation, and low labor intensity in the prevention and control of crop diseases, insect pests and weeds, and play an irreplaceable important role in the integrated pest control. In 2016, the production volume of chemical pesticides in China reached 3.778 million tons, and the usage amounted to 1.8 million tons, mainly conventional pesticide formulations such as emulsifiable concentrate, wettable powder and water emulsion. [0003] Due to the problems of a large number of organic solvents used in conventional pesticide formulations, dust drift, poor dispersibility, etc., and the ability to control the release of active ingredients, more than 90% of the active ingredients of pestic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/56A01N25/18A01P7/00
CPCA01N43/56A01N25/18
Inventor 李建洪高云昊何顺万虎张彦辉肖亚楠张园秦雪莹
Owner HUAZHONG AGRI UNIV
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com