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Slow release type insect pest attractant microcapsule and preparation method thereof

A pest attractant, microcapsule technology, applied in the directions of attracting pests, botanical equipment and methods, biocides, etc., can solve the problems of short action time, unsatisfactory slow release time, unsatisfactory effect, etc., and the method is simple , easy to operate, easy to store effects

Active Publication Date: 2012-10-17
CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pest attractants have shortcomings such as short action time and unsatisfactory slow-release time. How to control the release speed and prolong the effective attracting time has become a research hotspot for pest attractants.
For this reason, researchers from various countries have studied various methods, such as inclusion compounds, liposomes and other methods to overcome the above shortcomings, but the results are not ideal.
However, there is no relevant report on the application of phase change material microcapsules in the field of pest control.

Method used

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  • Slow release type insect pest attractant microcapsule and preparation method thereof
  • Slow release type insect pest attractant microcapsule and preparation method thereof
  • Slow release type insect pest attractant microcapsule and preparation method thereof

Examples

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Embodiment 1～4

[0022] The specific preparation method is as follows, wherein the feeding amount of each embodiment is referred to Table 1, and the process is referred to Table 2:

[0023] (a) Compound and mix the organic phase change material and the pest attractant according to the mass ratio of 1:1.2-1.6 to form an energy storage type pest attractant;

[0024] (b) Mix the energy storage type pest attractant, emulsifier and deionized water according to the mass ratio of 1:0.18~0.23:10.3~13.6, and stir at 350~650r / min for 4~7min to form an O / W solution;

[0025] (c) Ethyl orthosilicate, simethicone and silane coupling agent are uniformly mixed in a mass ratio of 1:1.15~1.72︰0.17~0.36 to form an oil phase;

[0026] (d) Add the oil phase obtained in step (c) to the O / W solution obtained in step (b), adjust the pH to 2.7 with a hydrochloric acid solution with a concentration of 1.5-2.5 mol / L, and use a high-speed shearing machine at 8000 ~11000r / min speed shearing 3~5min;

[0027] (e) React t...

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Abstract

The invention relates to a slow release type insect pest attractant microcapsule and a preparation method thereof. The microcapsule disclosed by the invention is composed of a capsule wall and a capsule core which contains insect pest attractant. The preparation method thereof comprises the following steps of: mixing the capsule core containing the inset pest attractant, an emulsifier and deionized water in certain mass ratio, and stirring for 4-7min at a rotating speed of 350-650r / min, so as to obtain O / W (oil in water) solution; adding capsule wall oil phase into the O / W solution, regulating pH to be 2.7 with hydrochloric acid solution with the concentration of 1.5-2.5mol / L, and shearing for 3-5min at the speed of 8000-11000r / min by adopting a high-speed shearing machine; and reacting the obtained emulsion at the rotating speed of 350-600r / min at the temperature of 38-42 DEG C, filtering, and carrying out vacuum drying. The insect pest attractant microcapsule prepared by the invention is easy to store, has good slow release performance and can effectively prolong action time of the inset pest attractant.

Description

technical field [0001] The invention relates to the field of pest control, in particular to a slow-release pest attractant microcapsule and a preparation method thereof. Background technique [0002] Pests are one of the important vectors. They not only spread various diseases, but also threaten the safe growth of various crops. Attractants are one of the most important means in the monitoring, investigation and control of various pests, so they are widely used. However, pest attractants have shortcomings such as short action time and unsatisfactory slow-release time. How to control the release rate and prolong the effective attracting time has become a research hotspot for pest attractants. For this reason, researchers from various countries have studied various methods, such as inclusion compounds, liposomes and other methods to overcome the above shortcomings, but the results are not ideal. [0003] Microcapsule coating technology has developed rapidly in recent years. ...

Claims

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Application Information

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IPC IPC(8): A01N25/28A01P19/00
Inventor 纪俊玲周艳思汪媛陈新李坚
Owner CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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