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A kind of insect trapping microcapsule which can be used for sticky insect board and its preparation method and application

A technology of microcapsules and insect sticky boards, applied in botany equipment and methods, chemicals for biological control, applications, etc., can solve the problems of reduced adhesion of adhesives, achieve stable emission speed, and long-term insect trapping , Good lure distribution effect

Active Publication Date: 2021-10-08
WENZHOU VOCATIONAL COLLEGE OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And when the powder-like attractant is coated on the surface of the adhesive, the adhesiveness of the adhesive will be reduced

Method used

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  • A kind of insect trapping microcapsule which can be used for sticky insect board and its preparation method and application
  • A kind of insect trapping microcapsule which can be used for sticky insect board and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) prepare double emulsion:

[0033] A tapered cylindrical glass capillary with an inner diameter of 60 μm, an outer diameter of 150 μm, and an inner diameter of 4 μm at the tip is nested in a square glass tube with an inner side length of 180 μm and an outer side length of 300 μm and is coaxial with the square glass tube. Then align the inlet of the collection tube with an inner diameter of 60 μm, an outer diameter of 150 μm, and an inlet inner diameter of 20 μm with the tip of the tapered cylindrical glass capillary, nested in the square glass tube and coaxial with the square glass tube. The preparation equipment used to form the double emulsion.

[0034]An aqueous solution containing 1.5wt% methylcellulose as the outermost fluid; fluorinated acrylate, methyl methacrylate, acrylic acid, N,N-methylenebisacrylamide, benzoyl peroxide and phthalic acid Diethyl ester is mixed at a mass ratio of 1:10:12:0.5:0.05:5 as the middle phase fluid; water is the innermost phase fl...

Embodiment 2

[0042] (1) prepare double emulsion:

[0043] A tapered cylindrical glass capillary with an inner diameter of 60 μm, an outer diameter of 150 μm, and an inner diameter of 4 μm at the tip is nested in a square glass tube with an inner side length of 180 μm and an outer side length of 300 μm and is coaxial with the square glass tube. Then align the inlet of the collection tube with an inner diameter of 60 μm, an outer diameter of 150 μm, and an inlet inner diameter of 20 μm with the tip of the tapered cylindrical glass capillary, nested in the square glass tube and coaxial with the square glass tube. The preparation equipment used to form the double emulsion.

[0044] An aqueous solution containing 2.5wt% polyvinyl alcohol is the outermost fluid; fluorine-containing acrylate, methyl methacrylate, acrylic acid, N,N-methylenebisacrylamide, benzoyl peroxide and pentane according to 1: The mass ratio of 15:14:0.8:0.08:9 is mixed as the mesophase fluid; water is the innermost phase f...

Embodiment 3

[0052] (1) prepare double emulsion:

[0053] A tapered cylindrical glass capillary with an inner diameter of 200 μm, an outer diameter of 350 μm, and an inner diameter of 30 μm at the tip is nested in a square glass tube with an inner side length of 400 μm and an outer side length of 550 μm and is coaxial with the square glass tube. Then align the inlet of the collection tube with an inner diameter of 200 μm, an outer diameter of 350 μm, and an inlet inner diameter of 50 μm with the tip of the tapered cylindrical glass capillary, nested in the square glass tube and coaxial with the square glass tube. The preparation equipment used to form the double emulsion.

[0054] The aqueous solution containing 2wt% sodium polyacrylate is the outermost fluid; : 10: 12: 0.9: 0.06: 8 The mass ratio is mixed as the mesophase fluid; water is the innermost phase fluid. Use a microsyringe pump to deliver the innermost phase fluid into the tapered cylindrical capillary at a rate of 2mL / hr, and...

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Abstract

The invention discloses an insect-attracting microcapsule which can be used for sticky insect boards, a preparation method and application thereof. In the present invention, double emulsions are firstly prepared by a one-step method, and the double emulsions are polymerized into double-chamber microcapsules; then N-acryloyl dopamine is grafted onto the microcapsule shell; finally, the attractant is loaded on the microcapsules to obtain Insect-attracting microcapsules for sticky insect boards. The microcapsule can realize simultaneous embedding of water-soluble substances and fat-soluble substances in the attractant, solves the problem of large volume of existing attractant carriers, and effectively reduces the usage amount of expensive attractants. The microcapsule has good weather resistance and a stable structure, so that the attractant can be kept distributed stably, and the insect attractor is more efficient. The introduction of dopamine makes the microcapsules have strong adhesion, which can be closely combined with the sticky shellac without affecting the stickiness of the sticky shellac. Spraying the aqueous solution of the microcapsules on the sticky insect glue of the sticky insect board can realize long-term pest trapping with stable release of lure.

Description

technical field [0001] The invention relates to a microcapsule for trapping pests, in particular to a microcapsule for trapping insects that can be used in sticky insect boards, a preparation method and application thereof. Background technique [0002] my country has been a large agricultural country since ancient times. Agriculture has always been the lifeline of the national economy. The development of agriculture is directly related to the stability and development of society. Plant diseases and insect pests are one of the main disasters affecting my country's agriculture. They have the characteristics of many types, wide range of occurrence, and severe impact. They have caused great losses to my country's national economy, especially agricultural production. Therefore, it is of great significance to strengthen the prevention and control of diseases and insect pests, effectively protect agricultural achievements and ecological security, and promote the development and pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/28A01N65/38A01N65/18A01N65/36A01N65/08A01M1/14A01M1/02A01P21/00
CPCA01M1/02A01M1/14A01N25/28A01N65/00A01N65/08A01N65/18A01N65/36A01N65/38
Inventor 徐静李甜张唯一张辉张井林胜利朱宏郑家杨
Owner WENZHOU VOCATIONAL COLLEGE OF SCI & TECH
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